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{{short description|Afterburning turbofan engine that powers the F-15 Eagle and F-16 Fighting Falcon}}
{{short description|Afterburning turbofan engine that powers the F-15 Eagle and F-16 Fighting Falcon}}
{|{{Infobox aircraft begin
{|{{Infobox aircraft begin
|name= F100
| name = F100
|image= File:engine.f15.arp.750pix.jpg
| image = File:engine.f15.arp.750pix.jpg
|caption= F100 for an [[McDonnell Douglas F-15 Eagle|F-15 Eagle]] being tested
| caption = Testing an F100 for an [[McDonnell Douglas F-15 Eagle|F-15 Eagle]]
}}
}}
{{Infobox aircraft engine
{{Infobox aircraft engine
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|}
|}


The '''Pratt & Whitney F100''' (company designation '''JTF22'''<ref>{{cite web|url=http://www.designation-systems.net/usmilav/engines.html#_MILSTD1812_AirBreathing|title=Designations Of U.S. Military Aero Engines|website=www.designation-systems.net|access-date=17 April 2018}}</ref>) is an [[afterburner|afterburning]] [[turbofan]] engine manufactured by [[Pratt & Whitney]] that powers the [[McDonnell Douglas F-15 Eagle|F-15 Eagle]] and [[General Dynamics F-16 Fighting Falcon|F-16 Fighting Falcon]].
The '''Pratt & Whitney F100''' (company designation '''JTF22'''<ref>{{cite web|url=http://www.designation-systems.net/usmilav/engines.html#_MILSTD1812_AirBreathing|title=Designations Of U.S. Military Aero Engines|website=www.designation-systems.net|access-date=17 April 2018}}</ref>) is a low bypass [[afterburner|afterburning]] [[turbofan]] engine. It was designed and manufactured by [[Pratt & Whitney]] to power the U.S. Air Force's "FX" initiative in 1965, which became the [[McDonnell Douglas F-15 Eagle|F-15 Eagle]]. The engine was to be developed in tandem with the [[Pratt & Whitney F401|F401]] which shares a similar core but with an upscaled fan for the U.S. Navy's [[Grumman F-14 Tomcat|F-14 Tomcat]]. The F401 was later abandoned due to costs and reliability issues. The F100 also powered the [[General Dynamics F-16 Fighting Falcon|F-16 Fighting Falcon]] for the Air Force's Lightweight Fighter (LWF) program.

{{Toclimit}}


==Development==
==Development==
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[[File:F-16 Exhaust.JPG|thumb|Adjustable exhaust nozzle contracted]]
[[File:F-16 Exhaust.JPG|thumb|Adjustable exhaust nozzle contracted]]
The IEDP was created to be a competitive engine design/demonstration phase followed with a down select to one winning engine design and development program. [[General Electric]] and [[Pratt & Whitney]] were placed on contract for an approximately 18-month program with goals to improve thrust and reduce weight to achieve a [[thrust-to-weight ratio]] of 8. At the end of the IEDP, General Electric and Pratt & Whitney submitted proposals for their engine candidates for the aircraft that had been selected in the FX Competition, the McDonnell Douglas F-15. The Pratt & Whitney proposal was selected as the winner and the engine was designated the F100.<ref>Connors, pp. 385-391</ref> The Air Force would award Pratt & Whitney a contract in 1970 to develop and produce '''F100-PW-100''' (USAF) and [[Pratt & Whitney F401|F401-PW-400]] (USN) engines. The Navy would use the engine in the planned F-14B and the [[XFV-12]] project but would cut back and later cancel its order after the latter's failure, and chose to continue to use the [[Pratt & Whitney TF30]] engine from the [[General Dynamics F-111|F-111]] in its F-14s.<ref name="Davies">Davies, Steve. ''Combat Legend, F-15 Eagle and Strike Eagle''. London: Airlife Publishing, Ltd., 2002. {{ISBN|1-84037-377-6}}.</ref><ref>McDermott 1972, pp. 1-5</ref>
The IEDP was created to be a competitive engine design/demonstration phase followed with a down select to one winning engine design and development program. [[General Electric]] and [[Pratt & Whitney]] were placed on contract for an approximately 18-month program with goals to improve thrust and reduce weight to achieve a [[thrust-to-weight ratio]] of 8. At the end of the IEDP, General Electric and Pratt & Whitney submitted proposals for their engine candidates for the aircraft that had been selected in the FX Competition, the McDonnell Douglas F-15. The Pratt & Whitney proposal was selected as the winner and the engine was designated the F100.<ref>Connors, pp. 385-391</ref> The Air Force would award Pratt & Whitney a contract in 1970 to develop and produce '''F100-PW-100''' (USAF) and [[Pratt & Whitney F401|F401-PW-400]] (USN) engines. The Navy would use the engine in the planned F-14B and the [[XFV-12]] project but would cut back and later cancel its order after the latter's failure due to costs and reliability issues, and chose to continue to use the [[Pratt & Whitney TF30]] engine from the [[General Dynamics F-111|F-111]] in its F-14s.<ref name="Davies">Davies, Steve. ''Combat Legend, F-15 Eagle and Strike Eagle''. London: Airlife Publishing, Ltd., 2002. {{ISBN|1-84037-377-6}}.</ref><ref>McDermott 1972, pp. 1-5</ref>


==Variants==
==Design and variants==
The F100 is a twin spool, axial flow, afterburning turbofan engine. It has a 3-stage fan driven by a two-stage low-pressure turbine and a 10-stage compressor driven by a two-stage high-pressure turbine. The initial F100-PW-100 variant generates nearly {{cvt|24000|lbf|kN|0}} of thrust in full afterburner and weighs approximately {{cvt|3000|lb|kg|0}}, achieving its target thrust-to-weight ratio of 8 and providing the F-15 with its desired thrust-to-weight ratio of greater than 1:1 at combat weight.
The F100 is a twin spool, axial flow, afterburning turbofan engine. It has a 3-stage fan driven by a two-stage low-pressure turbine and a 10-stage compressor driven by a two-stage high-pressure turbine. The initial F100-PW-100 variant generates nearly {{cvt|24000|lbf|kN|0}} of thrust in full afterburner and weighs approximately {{cvt|3000|lb|kg|0}}, achieving its target thrust-to-weight ratio of 8 and providing the F-15 with its desired thrust-to-weight ratio of greater than 1:1 at combat weight.


===F100-PW-100===
===PW-100===
[[File:F100-PW-100.JPG|thumb|F100-PW-100 on display at the [[Virginia Air and Space Center]] ]]
[[File:F100-PW-100.JPG|thumb|F100-PW-100 on display at the [[Virginia Air and Space Center]] ]]


The F100-100 first flew in an F-15 Eagle in 1972 with a maximum continuous power rating of {{convert|12410|lbf|kN|abbr=on}}, military power of {{convert|14690|lbf|kN|abbr=on}}, and afterburning thrust of {{convert|23930|lbf|kN|abbr=on}} with 5-minute limit. Due to the advanced nature of engine stemming from ambitious performance goals, numerous problems were encountered in its early days of service including high wear, stalling and "hard" afterburner starts.<ref name="Fernandez1983pp241-245,251-254">{{Harvnb|Fernandez|1983|pp=241–245, 251–254}}</ref> These "hard" starts could be caused by failure of the [[afterburner]] to start or by extinguishing after start, in either case the large jets of jet fuel were lit by the engine exhaust resulting in high pressure waves causing the engine to stall; these stagnation stalls usually occurred at high Mach and high altitude, and could seriously damage the turbine if the condition was not corrected. The problems were partially contributed by pilots making much more abrupt throttle changes than previous fighters and engines due to the excess thrust available. Early problems were eventually solved by the development of the F100-PW-220 in the early 1980s, which the -100 could be upgraded to.
The F100-PW-100 first flew in an F-15 Eagle in 1972 with a maximum continuous power rating of {{convert|12410|lbf|kN|abbr=on}}, military power of {{convert|14690|lbf|kN|abbr=on}}, and afterburning thrust of {{convert|23930|lbf|kN|abbr=on}} with 5-minute limit. Due to the advanced nature of engine stemming from ambitious performance goals, numerous problems were encountered in its early days of service including high wear, stalling and "hard" afterburner starts.<ref name="Fernandez1983pp241-245,251-254">{{Harvnb|Fernandez|1983|pp=241–245, 251–254}}</ref> These "hard" starts could be caused by failure of the [[afterburner]] to start or by extinguishing after start, in either case the large jets of jet fuel were lit by the engine exhaust resulting in high pressure waves causing the engine to stall; these stagnation stalls usually occurred at high Mach and high altitude, and could seriously damage the turbine if the condition was not corrected. The problems were contributed by pilots making much more abrupt throttle changes than previous fighters and engines due to the excess thrust available. Early problems were eventually solved by the development of the F100-PW-220 in the early 1980s, which the -100 could be upgraded to.


===F100-PW-200===
===PW-200===
The [[General Dynamics F-16 Fighting Falcon|F-16 Fighting Falcon]] entered service with the F100-200; compared to the -100, the -200 has some additional redundancies for single-engine reliability and almost identical thrust ratings. In particular, a "proximate splitter" was introduced on the -200 that reduced the severity of the high pressure waves from "hard" afterburner starts. This greatly reduced the rate of stagnation stalls, and the -200 on the F-16 saw much better reliability than the -100 on the F-15, although some of the issues from the -100 remained. Similarly, these problems were eventually solved by the F100-PW-220, which the -200 could be upgraded to as well.
The [[General Dynamics F-16 Fighting Falcon|F-16 Fighting Falcon]] entered service with the F100-PW-200; compared to the -100, the -200 has some additional redundancies for single-engine reliability and almost identical thrust ratings. In particular, a "proximate splitter" was introduced on the -200 that reduced the severity of the high pressure waves from "hard" afterburner starts. This greatly reduced the rate of stagnation stalls, and the -200 on the F-16 saw much better reliability than the -100 on the F-15, although some of the issues from the -100 remained. Similarly, these problems were eventually solved by the F100-PW-220, which the -200 could be upgraded to as well.


===F100-PW-220/220E===
==== Specifications (F100-100/200)====
{{jetspecs
Due to the unsatisfactory reliability, maintenance costs, and service life of the F100-PW-100/200, Pratt & Whitney was eventually pressured into upgrading the engine to address these issues. The Air Force also began funding the General Electric [[General Electric F110#Design|F101 Derivative Fighter Engine]], which eventually became the F110, as a competitor to the F100 to coerce more urgency from Pratt & Whitney. The result of Pratt & Whitney's improvement efforts was the F100-PW-220, which eliminates almost all stall-stagnations and augmentor instability issues from the -100 as well as doubling time between depot overhauls. Reliability and maintenance costs were also drastically improved, and the engine incorporates a digital electronic engine control (DEEC). The -220 engine produces static thrust of {{cvt|14590|lbf|kN}} in military (intermediate) power and {{cvt|23770|lbf|kN}} afterburning, very slightly lower than the static thrust of the -100/200, but the -220 has better [[Turbofan#Thrust|dynamic thrust]] across most of the envelope.
|<!-- If you do not understand how to use this template, please ask at [[Wikipedia talk:WikiProject Aircraft]] -->
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|ref=DTIC,<ref name="dtic.mil"/> Smithsonian National Air and Space Museum<ref>{{cite web|title=Pratt & Whitney F100-PW-100|url=https://airandspace.si.edu/collection-objects/pratt-whitney-f100-pw-100-turbofan-engine/nasm_A19900276000|date=|publisher=[[Smithsonian]]}}</ref>
|type=Afterburning [[turbofan]]
|length={{convert|191|in|cm|0}}
|diameter={{convert|34.8|in|cm}} inlet, {{convert|46.5|in|cm}} maximum external
|weight={{convert|3035|lb}}
|compressor=Dual Spool [[Axial compressor]] with 3-stage fan, 10-stage compressor
|combustion=annular
|turbine=2-stage high pressure, 2-stage low-pressure
|fueltype=
|oilsystem=
|power=
|thrust=<br />
**{{convert|12410|lbf|kN}} dry thrust, continuous,
**{{convert|14690|lbf|kN}} military/intermediate power,
**{{convert|23930|lbf|kN}} with afterburner
|compression=24:1
|aircon={{cvt|224|lb/sec|kg/sec|0}}
|turbinetemp=
|fuelcon=
|specfuelcon=
|power/weight=
|thrust/weight=7.88:1
}}


===PW-220/220E===
The F100-PW-220 was introduced in 1986 and was installed on the F-15 or F-16, gradually replacing the -100/200.<ref name="dtic.mil">{{cite web|url=http://apps.dtic.mil/dtic/tr/fulltext/u2/a282467.pdf|archive-url=https://web.archive.org/web/20140628172616/http://www.dtic.mil/dtic/tr/fulltext/u2/a282467.pdf|url-status=live|archive-date=June 28, 2014|title=The Development of the F100-PW-220 and F110-GE-100 Engines: A Case Study of Risk Assessment and Risk Management|website=dtic.mil|access-date=17 April 2018}}</ref> Seeking a way to drive unit costs down, the [[USAF]] implemented the Alternative Fighter Engine (AFE) program in 1984, under which the engine contract would be awarded through competition; the -220 would be Pratt & Whitney’s initial offering in the AFE program, competing with the General Electric F110-GE-100. The F-16C/D Block 30/32s were the first to be built with the common engine bay, able to accept the existing F100-200/220 engine (Block 32) or the F110-100 (Block 30). A non-afterburning variant, the F100-PW-220U powers the [[Northrop Grumman X-47B]] [[Unmanned Combat Aerial Vehicle|UCAV]]. The -100 and -200 series engines could be upgraded to become equivalent to -220 specifications; the "E" abbreviation from 220E is for “equivalent” and given to engines which have been upgraded as such.
Due to the unsatisfactory reliability, maintenance costs, and service life of the F100-100/200, Pratt & Whitney was eventually pressured into upgrading the engine to address these issues. The Air Force also began funding the General Electric [[General Electric F110#Design|F101 Derivative Fighter Engine]], which eventually became the F110, as a competitor to the F100 to coerce more urgency from Pratt & Whitney. The result of Pratt & Whitney's improvement efforts was the F100-PW-220, which eliminates almost all stall-stagnations and augmentor instability issues from the -100 as well as doubling time between depot overhauls. Reliability and maintenance costs were also drastically improved, and the engine incorporates a digital electronic engine control (DEEC). The -220 engine produces static thrust of {{cvt|14590|lbf|kN}} in military (intermediate) power and {{cvt|23770|lbf|kN}} afterburning, very slightly lower than the static thrust of the -100/200, but the -220 has better [[Turbofan#Thrust|dynamic thrust]] across most of the envelope.


The F100-220 was introduced in 1986 and was installed on the F-15 and F-16, gradually replacing the -100/200.<ref name="dtic.mil">{{cite web|url=http://apps.dtic.mil/dtic/tr/fulltext/u2/a282467.pdf|archive-url=https://web.archive.org/web/20140628172616/http://www.dtic.mil/dtic/tr/fulltext/u2/a282467.pdf|url-status=live|archive-date=June 28, 2014|title=The Development of the F100-PW-220 and F110-GE-100 Engines: A Case Study of Risk Assessment and Risk Management|website=dtic.mil|access-date=17 April 2018}}</ref> Seeking a way to drive unit costs down, the [[USAF]] implemented the Alternate Fighter Engine (AFE) program in 1984 (nicknamed "The Great Engine War"), under which the engine contract would be awarded through competition; the -220 would be Pratt & Whitney's initial offering in the AFE program, competing with the General Electric F110-GE-100. The F-16C/D Block 30/32s were the first to be built with the common engine bay, able to accept the existing F100-200/220 engine (Block 32) or the F110-100 (Block 30). A non-afterburning variant, the F100-PW-220U powers the [[Northrop Grumman X-47B]] [[Unmanned Combat Aerial Vehicle|UCAV]]. The -100 and -200 series engines could be upgraded to become equivalent to -220 specifications; the "E" abbreviation from 220E is for "equivalent" and given to engines which have been upgraded as such.
===F100-PW-229===
The F100-PW-229 and its competitor, the General Electric F110-GE-129, were the result of the USAF seeking greater power for its tactical aircraft through the Improved Performance Engine (IPE) program in the 1980s; in addition to greater thrust, the -229 incorporates the reliability and durability improvements of the -220 as well as an enhanced DEEC. Compared to earlier variants, the -229 has a higher turbine inlet temperature, higher airflow, and lower bypass ratio. The first engine was flown in 1989 and produced thrust of {{convert|17800|lbf|kN|1|abbr=on}} (dry/intermediate thrust) and {{convert|29160|lbf|kN|abbr=on}} with afterburner. The -229 powers late model F-16C/D Block 52s and [[F-15E Strike Eagle|F-15Es]].

[[File:F-15-vector.jpg|thumb|The F-15 ACTIVE showing its 3D axisymmetric thrust vectoring nozzles on its F100-PW-229s.]]
A variant of the -229 fitted with a 3-dimensional axisymmetric [[thrust vectoring]] nozzle, referred by Pratt & Whitney as the Pitch/Yaw Balance Beam Nozzle (P/YBBN), was tested on the [[McDonnell Douglas F-15 STOL/MTD|F-15 ACTIVE]] (Advanced Control Technology for Integrated Vehicles) in the 1990s.<ref>{{cite report |authors=James W. Smolka, Laurence A. Walker, Major Gregory H. Johnson, Gerard S. Schkolnik, Curtis W. Berger, Timothy R. Conners, John S. Orme, Karla S. Shy, C. Bruce Wood |display-authors=etal |url=https://www.nasa.gov/centers/dryden/pdf/89247main_setp_d6.pdf |title=F-15 ACTIVE Flight Research Program |publisher=NASA [[Dryden Flight Research Center]] |year=1996}}</ref>

In 2007, the F100-PW-229EEP (Engine Enhancement Package) began development to increase reliability and number of accumulated cycles between depot overhauls. This was done by applying technology from the F100-PW-232 (see below), which in turn incorporated technology and advancements from the [[Pratt & Whitney F119|F119]] program for the F-22, as well as (for -229EEP) from the [[Pratt & Whitney F135|F135]] program for the F-35; the -229EEP incorporates updated turbine materials, cooling management techniques, compressor aerodynamics, split cases (top and bottom) and updated DEEC software.<ref>{{cite web|title=F100-PW-229 Engine Enhancement Package brochure|url=http://www.pw.utc.com/Content/Press_Kits/pdf/me_f100_pw_229.pdf|access-date=2014-01-12|archive-url=https://web.archive.org/web/20140112235705/http://www.pw.utc.com/Content/Press_Kits/pdf/me_f100_pw_229.pdf|archive-date=2014-01-12|url-status=dead}}</ref> Deliveries of the -229EEP began in 2009.

===F100-PW-232===
The F100-PW-232, originally called F100-PW-229A (Advanced), was a further enhanced variant that incorporated engineering advances and technology from Pratt & Whitney’s F119 engine for the F-22 as well as operational experience from the -229; development began in the late 1990s.<ref>{{cite web |url=https://aviationweek.com/aerodynamics-mostly-settled-pws-newest-f100 |title=Aerodynamics Mostly Settled On P&W's Newest F100 |work=Aviation Week |date=13 February 1998}}</ref> The fan was larger for increased airflow and redesigned to be more reliable; it incorporated stages with the blades and disk formed into a single piece called an integrally-blades rotor (IBR), or [[blisk]]. The stators were also redesigned for better aerodynamics to improve stall margin. The -232 could produce {{convert|20100|lbf|kN|1|abbr=on}} of thrust in intermediate power and {{convert|32500|lbf|kN|1|abbr=on}} in afterburner; alternatively it could produce the same thrust levels as the -229 but increase inspection intervals by 40%. The -232 was not pursued by the USAF, but many of the improvements were incorporated into the -229EEP to increase its reliability and inspection intervals.<ref>{{cite web |last= |first= |url=https://www.flightglobal.com/fighter-engine-boasts-pandw-engineering/30952.article |title=Fighter engine boasts P&W engineering |work=Flight Global |date=24 February 2000}}</ref><ref>{{cite web |url=https://aviationweek.com/pw-completes-series-tests-fifth-generation-f100-engine |title=P&W completes series of tests on fifth-generation F100 engine |work=Aviation Week |date=21 April 2000}}</ref>


==== Specifications (F100-220)====
===Derivatives===
{{main|Pratt & Whitney F401|Pratt & Whitney PW1120}}

The [[Pratt & Whitney F401|F401]] was the naval development of the F100 and designed in tandem. It was intended to power the [[Grumman F-14 Tomcat#Projected variants|F-14B Tomcat]] and [[Rockwell XFV-12]], but the engine was canceled due to costs and development issues. The [[Pratt & Whitney PW1120|PW1120]] turbofan was a smaller derivative of the F100; it was installed as a modification to a single [[McDonnell Douglas F-4 Phantom|F-4E]] fighter jet, and powered the canceled [[IAI Lavi]].

==Applications==

* [[General Dynamics F-16 Fighting Falcon]] (-200, -220, -229)
* [[McDonnell Douglas F-15 Eagle]] (-100, -220)
* [[McDonnell Douglas F-15E Strike Eagle]] (-220, -229)
* [[Northrop Grumman X-47B]] (-220U)
* [[Vought YA-7F]]

==Specifications (F100)==

===F100-PW-220===
{{jetspecs
{{jetspecs
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|ref=DTIC,<ref name="dtic.mil"/> Florida International University,<ref>{{cite web |url=http://www.allstar.fiu.edu/aero/P&WEngines02.html |title=Pratt & Whitney Engines, F100-PW-220/F100-PW-220E |work=Florida International University |archive-url=https://web.archive.org/web/20160305024321/http://www.allstar.fiu.edu/aero/P&WEngines02.html |archive-date=5 March 2016}}</ref> National Museum of the U.S. Air Force<ref>{{cite web|title=Pratt & Whitney F100-PW-220|url=http://www.nationalmuseum.af.mil/Visit/MuseumExhibits/FactSheets/Display/tabid/509/Article/196437/pratt-whitney-f100-pw-220.aspx|date=May 28, 2015|publisher=[[National Museum of the United States Air Force]]}}</ref>
|ref=DTIC,<ref name="dtic.mil"/> Florida International University,<ref>{{cite web |url=http://www.allstar.fiu.edu/aero/P&WEngines02.html |title=Pratt & Whitney Engines, F100-PW-220/F100-PW-220E |work=Florida International University |archive-url=https://web.archive.org/web/20160305024321/http://www.allstar.fiu.edu/aero/P&WEngines02.html |archive-date=5 March 2016}}</ref> National Museum of the U.S. Air Force<ref>{{cite web|title=Pratt & Whitney F100-PW-220|url=http://www.nationalmuseum.af.mil/Visit/MuseumExhibits/FactSheets/Display/tabid/509/Article/196437/pratt-whitney-f100-pw-220.aspx|date=May 28, 2015|publisher=[[National Museum of the United States Air Force]]}}</ref>
|type=Afterburning [[turbofan]]
|type=Afterburning [[turbofan]]
|length={{convert|191|in|cm}}
|length={{convert|191|in|cm|0}}
|diameter={{convert|34.8|in|cm}} inlet, {{convert|46.5|in|cm}} maximum external
|diameter={{convert|34.8|in|cm}} inlet, {{convert|46.5|in|cm}} maximum external
|weight={{convert|3234|lb}}
|weight={{convert|3234|lb}}
|compressor=Dual Spool [[Axial compressor]] with 3-stage fan, 10-stage compressor
|compressor=Dual Spool [[Axial compressor]] with 3-stage fan, 10-stage compressor
*'''[[Bypass ratio]]:''' 0.71:1
*'''[[Bypass ratio]]:''' 0.63:1
|combustion=annular
|combustion=annular
|turbine=2-stage high pressure, 2-stage low-pressure
|turbine=2-stage high pressure, 2-stage low-pressure
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**{{convert|23770|lbf|kN}} with afterburner
**{{convert|23770|lbf|kN}} with afterburner
|compression=25:1
|compression=25:1
|aircon=
|aircon={{cvt|228|lb/sec|kg/sec|0}}
|turbinetemp=
|turbinetemp=
|fuelcon=
|fuelcon=
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}}
}}


===F100-PW-229===
===PW-229===
The F100-PW-229 and its competitor, the General Electric F110-GE-129, were the result of the USAF seeking greater power for its tactical aircraft through the Improved Performance Engine (IPE) program in the 1980s. It was developed under company designation PW1128; in addition to greater thrust, the -229 incorporates the reliability and durability improvements of the -220 as well as an enhanced DEEC. Compared to earlier variants, the -229 has a higher turbine inlet temperature, higher airflow of {{cvt|248|lb/sec|kg/sec|0}}, and lower bypass ratio.<ref>{{cite tech report |author=Frank W. Burcham |author2=Donald L. Gatlin |author3=James F. Stewart |url=https://ntrs.nasa.gov/api/citations/19950026589/downloads/19950026589.pdf |title=An Overview of Integrated Flight-Propulsion Controls Flight Research on the NASA F-15 Research Airplane |publisher= NASA Dryden Flight Research Center |location=Edwards, CA |year=1995}}</ref> The first engine was flown in 1989 and produced thrust of {{convert|17800|lbf|kN|1|abbr=on}} (dry/intermediate thrust) and {{convert|29160|lbf|kN|abbr=on}} with augmentation. The -229 powers late model F-16C/D Block 52s, F-16V Block 72s and [[F-15E Strike Eagle|F-15Es]].

[[File:F-15-vector.jpg|thumb|The F-15 ACTIVE showing its 3D axisymmetric thrust vectoring nozzles on its F100-PW-229s.]]
A variant of the -229 fitted with a 3-dimensional axisymmetric [[thrust vectoring]] nozzle, referred by Pratt & Whitney as the Pitch/Yaw Balance Beam Nozzle (P/YBBN), was tested on the [[McDonnell Douglas F-15 STOL/MTD|F-15 ACTIVE]] (Advanced Control Technology for Integrated Vehicles) in the 1990s.<ref>{{cite tech report |author=James W. Smolka |author2=Laurence A. Walker |author3=Major Gregory H. Johnson |author4=Gerard S. Schkolnik |author5=Curtis W. Berger |author6=Timothy R. Conners |author7=John S. Orme |author8=Karla S. Shy |author9=C. Bruce Wood |display-authors=etal |url=https://www.nasa.gov/centers/dryden/pdf/89247main_setp_d6.pdf |title=F-15 ACTIVE Flight Research Program |publisher=NASA [[Dryden Flight Research Center]] |location=Edwards, CA |year=1996}}</ref>

In 2007, the F100-PW-229EEP (Engine Enhancement Package) began development to increase reliability and number of accumulated cycles between depot overhauls. This was done by applying technology from the F100-PW-232 (see below), which in turn incorporated technology and advancements from the [[Pratt & Whitney F119|F119]] program for the F-22, as well as (for -229EEP) from the [[Pratt & Whitney F135|F135]] program for the F-35; the -229EEP incorporates updated turbine materials, cooling management techniques, compressor aerodynamics, split cases (top and bottom) and updated DEEC software.<ref>{{cite web|title=F100-PW-229 Engine Enhancement Package brochure|url=http://www.pw.utc.com/Content/Press_Kits/pdf/me_f100_pw_229.pdf|access-date=2014-01-12|archive-url=https://web.archive.org/web/20140112235705/http://www.pw.utc.com/Content/Press_Kits/pdf/me_f100_pw_229.pdf|archive-date=2014-01-12}}</ref> Deliveries of the -229EEP began in 2009 and existing -229s can be upgraded to this configuration during scheduled depot maintenance.

==== Specifications (F100-229)====
{{jetspecs
{{jetspecs
|<!-- If you do not understand how to use this template, please ask at [[Wikipedia talk:WikiProject Aircraft]] -->
|<!-- If you do not understand how to use this template, please ask at [[Wikipedia talk:WikiProject Aircraft]] -->
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|ref=Pratt & Whitney<ref>[https://www.pw.utc.com/products-and-services/products/military-engines/f100 P&W F100 product page.] {{webarchive |url=https://web.archive.org/web/20100815090254/http://www.pw.utc.com/Products/Military/F100 |date=August 15, 2010 }}</ref>
|ref=Pratt & Whitney<ref>[https://www.pw.utc.com/products-and-services/products/military-engines/f100 P&W F100 product page.] {{webarchive |url=https://web.archive.org/web/20100815090254/http://www.pw.utc.com/Products/Military/F100 |date=August 15, 2010 }}</ref><ref>[https://prd-sc101-cdn.rtx.com/-/media/pw/newsroom/collateral/documents/military-engines/f100-pw-229-product-card.pdf?rev=1985f0a00ec94bdfb59faddf5676a39d&hash=EE1E075556886035EBF842DCB1F5E497 P&W F100-PW-229 Product Card]</ref>
|type=Afterburning [[turbofan]]
|type=Afterburning [[turbofan]]
|length={{convert|191|in|cm}}
|length={{convert|191|in|cm|0}}
|diameter={{convert|34.8|in|cm}} inlet, {{convert|46.5|in|cm}} maximum external
|diameter={{convert|34.8|in|cm}} inlet, {{convert|46.5|in|cm}} maximum external
|weight={{convert|3829|lb}}
|weight={{convert|3829|lb}}
Line 117: Line 129:
**{{convert|29160|lbf|kN}} with afterburner
**{{convert|29160|lbf|kN}} with afterburner
|compression=32:1
|compression=32:1
|aircon=
|aircon={{cvt|248|lb/sec|kg/sec|0}}
|turbinetemp={{convert|2460|°F}}<ref>{{cite book|title=Fighter Wing: A Guided Tour of an Air Force Combat Wing|isbn = 9780425217023|url=https://books.google.com/books?id=7SmeqapJ3tIC&q=F100+PW+inlet+temperature&pg=PA64|last1 = Clancy|first1 = Tom|year = 2007}}</ref>
|turbinetemp={{convert|2460|°F|C K}}<ref>{{cite book|title=Fighter Wing: A Guided Tour of an Air Force Combat Wing|isbn = 978-0-425-21702-3|url=https://books.google.com/books?id=7SmeqapJ3tIC&q=F100+PW+inlet+temperature&pg=PA64|last1 = Clancy|first1 = Tom|year = 2007}}</ref>
|fuelcon=
|fuelcon=
|specfuelcon=Intermediate Power: 0.76 lb/(lbf·h) (77.5 kg/(kN·h)) Full afterburner: 1.94 lb/(lbf·h) (197.8 kg/(kN·h))
|specfuelcon=Intermediate Power: 0.76 lb/(lbf·h) (77.5 kg/(kN·h)) Full afterburner: 1.94 lb/(lbf·h) (197.8 kg/(kN·h))
Line 124: Line 136:
|thrust/weight=7.8:1
|thrust/weight=7.8:1
}}
}}

===F100-PW-232===
The F100-PW-232, originally called F100-PW-229A (Advanced), was a further enhanced variant that incorporated engineering advances and technology from Pratt & Whitney's F119 engine for the F-22 as well as operational experience from the -229; development began in the late 1990s.<ref>{{cite web |url=https://aviationweek.com/aerodynamics-mostly-settled-pws-newest-f100 |title=Aerodynamics Mostly Settled On P&W's Newest F100 |work=Aviation Week |date=13 February 1998}}</ref> Both the -232 and its competitor, the General Electric F110-GE-132, were designed to make full use of the F-16's Modular Common Inlet Duct (MCID), or "Big Mouth" inlet introduced in the Block 30 variant. The fan module was redesigned for increased airflow of {{cvt|275|lb/sec|kg/sec|0}} and greater reliability; it incorporated stages with wide chord blades and disk formed into a single piece called an integrally-blades rotor (IBR), or [[blisk]].<ref>{{cite web |last=Norris |first=Guy |url=https://www.flightglobal.com/pandw-starts-f100-299a-fan-blade-tests/24870.article |title=P&W starts F100-299A fan blade tests |date=26 January 1999 |work=Flight International}}</ref> The stators were also redesigned for better aerodynamics to improve stall margin. The -232 could produce {{convert|20100|lbf|kN|1|abbr=on}} of thrust in intermediate power and {{convert|32500|lbf|kN|1|abbr=on}} in afterburner; alternatively it could produce the same thrust levels as the -229 but increase inspection intervals by 40%. The -232 was not pursued by the USAF, but many of the improvements were incorporated into the -229EEP to increase its reliability and inspection intervals.<ref>{{cite web |url=https://www.flightglobal.com/fighter-engine-boasts-pandw-engineering/30952.article |title=Fighter engine boasts P&W engineering |work=Flight Global |date=24 February 2000}}</ref><ref>{{cite web |url=https://aviationweek.com/pw-completes-series-tests-fifth-generation-f100-engine |title=P&W completes series of tests on fifth-generation F100 engine |work=Aviation Week |date=21 April 2000}}</ref>

==== Specifications (F100-229A/232)====
{{jetspecs
|<!-- If you do not understand how to use this template, please ask at [[Wikipedia talk:WikiProject Aircraft]] -->
<!-- Please include units where appropriate (main comes first, alt in parentheses). If data are missing, leave the parameter blank (do not delete it). For additional lines, end your alt units with ) and start a new, fully-formatted line with * -->
|ref=Pratt & Whitney, Flight International
|type=Afterburning [[turbofan]]
|length={{convert|191|in|cm|0}}
|diameter={{convert|34.8|in|cm}} inlet, {{convert|46.5|in|cm}} maximum external
|weight={{convert|4100|lb}}
|compressor=Dual Spool [[Axial compressor]] with 3 fan and 10 compressor stages
|combustion=annular
|turbine=2 low-pressure and 2 high-pressure stages
|fueltype=
|oilsystem=
|power=
|thrust=<br />
**{{convert|20100|lbf|kN}} intermediate power
**{{convert|32500|lbf|kN}} with afterburner
|compression=
|aircon={{cvt|275|lb/sec|kg/sec|0}}
|turbinetemp=
|fuelcon=
|specfuelcon=
|power/weight=
|thrust/weight=7.92:1
}}

===Derivatives===
{{main|Pratt & Whitney F401|Pratt & Whitney PW1120}}

The [[Pratt & Whitney F401|F401]] was the naval development of the F100 and designed in tandem. It was intended to power the [[Grumman F-14 Tomcat#Projected variants|F-14B Tomcat]] and [[Rockwell XFV-12]], but the engine was canceled due to costs and development issues. The [[Pratt & Whitney PW1120|PW1120]] turbofan was a smaller derivative of the F100; it was installed as a modification to a single [[McDonnell Douglas F-4 Phantom|F-4E]] fighter jet, and powered the canceled [[IAI Lavi]].

==Applications==
* [[General Dynamics F-16 Fighting Falcon]] (-200, -220, -229)
* [[McDonnell Douglas F-15 Eagle]] (-100, -220)
* [[McDonnell Douglas F-15E Strike Eagle]] (-220, -229)
* [[Northrop Grumman X-47B]] (-220U)
* [[Vought YA-7F]] (-220)


==See also==
==See also==
Line 144: Line 198:


==Bibliography==
==Bibliography==
* {{cite book |last1=Connors |first1=Jack |date=2010 |title=The Engines of Pratt & Whitney: A Technical History |url=https://arc.aiaa.org/doi/book/10.2514/4.867293 |location= |publisher=American Institute of Aeronautics and Astronautics (AIAA) |doi=10.2514/4.867293 |isbn=9781600867118}}
* {{cite book |last1=Connors |first1=Jack |date=2010 |title=The Engines of Pratt & Whitney: A Technical History |url=https://arc.aiaa.org/doi/book/10.2514/4.867293 |publisher=American Institute of Aeronautics and Astronautics (AIAA) |doi=10.2514/4.867293 |isbn=978-1-60086-711-8}}
* {{cite journal |last1=McDermott |first1=John F. |date=1972 |title=F100/F401 Augmented Turbofan Engines - High Thrust-to-Weight Propulsion Systems |url=https://saemobilus.sae.org/content/720842/ |journal=[[SAE International|SAE]] |doi=10.4271/720842 |issn=0148-7191}}
* {{cite book |last1=McDermott |first1=John F. |title=SAE Technical Paper Series |date=1972 |chapter=F100/F401 Augmented Turbofan Engines - High Thrust-to-Weight Propulsion Systems |chapter-url=https://saemobilus.sae.org/content/720842/ |volume=1 |doi=10.4271/720842 |issn=0148-7191}}
* {{Fernandez1983}}
* {{Fernandez1983}}


Latest revision as of 18:10, 16 October 2024

F100
Testing an F100 for an F-15 Eagle
Type Turbofan
National origin United States
Manufacturer Pratt & Whitney
First run 1970s
Major applications F-15 Eagle
F-15E Strike Eagle
F-16 Fighting Falcon
Northrop Grumman X-47B
Developed into Pratt & Whitney F401
Pratt & Whitney PW1120

The Pratt & Whitney F100 (company designation JTF22[1]) is a low bypass afterburning turbofan engine. It was designed and manufactured by Pratt & Whitney to power the U.S. Air Force's "FX" initiative in 1965, which became the F-15 Eagle. The engine was to be developed in tandem with the F401 which shares a similar core but with an upscaled fan for the U.S. Navy's F-14 Tomcat. The F401 was later abandoned due to costs and reliability issues. The F100 also powered the F-16 Fighting Falcon for the Air Force's Lightweight Fighter (LWF) program.

Development

[edit]
Afterburner - concentric ring structure inside the exhaust

In 1967, the United States Navy and United States Air Force issued a joint engine Request for Proposals (RFP) for the F-14 Tomcat and the FX, which became the parallel fighter design competition that led to the F-15 Eagle in 1970. This engine program was called the IEDP (Initial Engine Development Program) and was funded and managed out of the Aeronautical Systems Division (ASD) at Wright-Patterson AFB. Under ASD, a Systems Project Office Cadre was assigned to manage both the FX Aircraft and Engine definition phase. The Turbine Engine Division of the Air Force Propulsion Laboratory was employed in a support role to assist ASD Systems Engineering in evaluations of technical risks. Later upon selection of the F-15 the ASD engineering cadre became the F-15 Systems Project Office.[2]

Adjustable exhaust nozzle contracted

The IEDP was created to be a competitive engine design/demonstration phase followed with a down select to one winning engine design and development program. General Electric and Pratt & Whitney were placed on contract for an approximately 18-month program with goals to improve thrust and reduce weight to achieve a thrust-to-weight ratio of 8. At the end of the IEDP, General Electric and Pratt & Whitney submitted proposals for their engine candidates for the aircraft that had been selected in the FX Competition, the McDonnell Douglas F-15. The Pratt & Whitney proposal was selected as the winner and the engine was designated the F100.[3] The Air Force would award Pratt & Whitney a contract in 1970 to develop and produce F100-PW-100 (USAF) and F401-PW-400 (USN) engines. The Navy would use the engine in the planned F-14B and the XFV-12 project but would cut back and later cancel its order after the latter's failure due to costs and reliability issues, and chose to continue to use the Pratt & Whitney TF30 engine from the F-111 in its F-14s.[4][5]

Variants

[edit]

The F100 is a twin spool, axial flow, afterburning turbofan engine. It has a 3-stage fan driven by a two-stage low-pressure turbine and a 10-stage compressor driven by a two-stage high-pressure turbine. The initial F100-PW-100 variant generates nearly 24,000 lbf (107 kN) of thrust in full afterburner and weighs approximately 3,000 lb (1,361 kg), achieving its target thrust-to-weight ratio of 8 and providing the F-15 with its desired thrust-to-weight ratio of greater than 1:1 at combat weight.

PW-100

[edit]
F100-PW-100 on display at the Virginia Air and Space Center

The F100-PW-100 first flew in an F-15 Eagle in 1972 with a maximum continuous power rating of 12,410 lbf (55.2 kN), military power of 14,690 lbf (65.3 kN), and afterburning thrust of 23,930 lbf (106.4 kN) with 5-minute limit. Due to the advanced nature of engine stemming from ambitious performance goals, numerous problems were encountered in its early days of service including high wear, stalling and "hard" afterburner starts.[6] These "hard" starts could be caused by failure of the afterburner to start or by extinguishing after start, in either case the large jets of jet fuel were lit by the engine exhaust resulting in high pressure waves causing the engine to stall; these stagnation stalls usually occurred at high Mach and high altitude, and could seriously damage the turbine if the condition was not corrected. The problems were contributed by pilots making much more abrupt throttle changes than previous fighters and engines due to the excess thrust available. Early problems were eventually solved by the development of the F100-PW-220 in the early 1980s, which the -100 could be upgraded to.

PW-200

[edit]

The F-16 Fighting Falcon entered service with the F100-PW-200; compared to the -100, the -200 has some additional redundancies for single-engine reliability and almost identical thrust ratings. In particular, a "proximate splitter" was introduced on the -200 that reduced the severity of the high pressure waves from "hard" afterburner starts. This greatly reduced the rate of stagnation stalls, and the -200 on the F-16 saw much better reliability than the -100 on the F-15, although some of the issues from the -100 remained. Similarly, these problems were eventually solved by the F100-PW-220, which the -200 could be upgraded to as well.

Specifications (F100-100/200)

[edit]

Data from DTIC,[7] Smithsonian National Air and Space Museum[8]

General characteristics

  • Type: Afterburning turbofan
  • Length: 191 inches (485 cm)
  • Diameter: 34.8 inches (88 cm) inlet, 46.5 inches (118 cm) maximum external
  • Dry weight: 3,035 pounds (1,377 kg)

Components

Performance

  • Maximum thrust:
    • 12,410 pounds-force (55.2 kN) dry thrust, continuous,
    • 14,690 pounds-force (65.3 kN) military/intermediate power,
    • 23,930 pounds-force (106.4 kN) with afterburner
  • Overall pressure ratio: 24:1
  • Air mass flow: 224 lb/s (102 kg/s)
  • Thrust-to-weight ratio: 7.88:1

PW-220/220E

[edit]

Due to the unsatisfactory reliability, maintenance costs, and service life of the F100-100/200, Pratt & Whitney was eventually pressured into upgrading the engine to address these issues. The Air Force also began funding the General Electric F101 Derivative Fighter Engine, which eventually became the F110, as a competitor to the F100 to coerce more urgency from Pratt & Whitney. The result of Pratt & Whitney's improvement efforts was the F100-PW-220, which eliminates almost all stall-stagnations and augmentor instability issues from the -100 as well as doubling time between depot overhauls. Reliability and maintenance costs were also drastically improved, and the engine incorporates a digital electronic engine control (DEEC). The -220 engine produces static thrust of 14,590 lbf (64.9 kN) in military (intermediate) power and 23,770 lbf (105.7 kN) afterburning, very slightly lower than the static thrust of the -100/200, but the -220 has better dynamic thrust across most of the envelope.

The F100-220 was introduced in 1986 and was installed on the F-15 and F-16, gradually replacing the -100/200.[7] Seeking a way to drive unit costs down, the USAF implemented the Alternate Fighter Engine (AFE) program in 1984 (nicknamed "The Great Engine War"), under which the engine contract would be awarded through competition; the -220 would be Pratt & Whitney's initial offering in the AFE program, competing with the General Electric F110-GE-100. The F-16C/D Block 30/32s were the first to be built with the common engine bay, able to accept the existing F100-200/220 engine (Block 32) or the F110-100 (Block 30). A non-afterburning variant, the F100-PW-220U powers the Northrop Grumman X-47B UCAV. The -100 and -200 series engines could be upgraded to become equivalent to -220 specifications; the "E" abbreviation from 220E is for "equivalent" and given to engines which have been upgraded as such.

Specifications (F100-220)

[edit]

Data from DTIC,[7] Florida International University,[9] National Museum of the U.S. Air Force[10]

General characteristics

  • Type: Afterburning turbofan
  • Length: 191 inches (485 cm)
  • Diameter: 34.8 inches (88 cm) inlet, 46.5 inches (118 cm) maximum external
  • Dry weight: 3,234 pounds (1,467 kg)

Components

Performance

PW-229

[edit]

The F100-PW-229 and its competitor, the General Electric F110-GE-129, were the result of the USAF seeking greater power for its tactical aircraft through the Improved Performance Engine (IPE) program in the 1980s. It was developed under company designation PW1128; in addition to greater thrust, the -229 incorporates the reliability and durability improvements of the -220 as well as an enhanced DEEC. Compared to earlier variants, the -229 has a higher turbine inlet temperature, higher airflow of 248 lb/s (112 kg/s), and lower bypass ratio.[11] The first engine was flown in 1989 and produced thrust of 17,800 lbf (79.2 kN) (dry/intermediate thrust) and 29,160 lbf (129.7 kN) with augmentation. The -229 powers late model F-16C/D Block 52s, F-16V Block 72s and F-15Es.

The F-15 ACTIVE showing its 3D axisymmetric thrust vectoring nozzles on its F100-PW-229s.

A variant of the -229 fitted with a 3-dimensional axisymmetric thrust vectoring nozzle, referred by Pratt & Whitney as the Pitch/Yaw Balance Beam Nozzle (P/YBBN), was tested on the F-15 ACTIVE (Advanced Control Technology for Integrated Vehicles) in the 1990s.[12]

In 2007, the F100-PW-229EEP (Engine Enhancement Package) began development to increase reliability and number of accumulated cycles between depot overhauls. This was done by applying technology from the F100-PW-232 (see below), which in turn incorporated technology and advancements from the F119 program for the F-22, as well as (for -229EEP) from the F135 program for the F-35; the -229EEP incorporates updated turbine materials, cooling management techniques, compressor aerodynamics, split cases (top and bottom) and updated DEEC software.[13] Deliveries of the -229EEP began in 2009 and existing -229s can be upgraded to this configuration during scheduled depot maintenance.

Specifications (F100-229)

[edit]

Data from Pratt & Whitney[14][15]

General characteristics

  • Type: Afterburning turbofan
  • Length: 191 inches (485 cm)
  • Diameter: 34.8 inches (88 cm) inlet, 46.5 inches (118 cm) maximum external
  • Dry weight: 3,829 pounds (1,737 kg)

Components

Performance

  • Maximum thrust:
    • 17,800 pounds-force (79 kN) intermediate power
    • 29,160 pounds-force (129.7 kN) with afterburner
  • Overall pressure ratio: 32:1
  • Air mass flow: 248 lb/s (112 kg/s)
  • Turbine inlet temperature: 2,460 °F (1,350 °C; 1,620 K)[16]
  • Specific fuel consumption: Intermediate Power: 0.76 lb/(lbf·h) (77.5 kg/(kN·h)) Full afterburner: 1.94 lb/(lbf·h) (197.8 kg/(kN·h))
  • Thrust-to-weight ratio: 7.8:1

F100-PW-232

[edit]

The F100-PW-232, originally called F100-PW-229A (Advanced), was a further enhanced variant that incorporated engineering advances and technology from Pratt & Whitney's F119 engine for the F-22 as well as operational experience from the -229; development began in the late 1990s.[17] Both the -232 and its competitor, the General Electric F110-GE-132, were designed to make full use of the F-16's Modular Common Inlet Duct (MCID), or "Big Mouth" inlet introduced in the Block 30 variant. The fan module was redesigned for increased airflow of 275 lb/s (125 kg/s) and greater reliability; it incorporated stages with wide chord blades and disk formed into a single piece called an integrally-blades rotor (IBR), or blisk.[18] The stators were also redesigned for better aerodynamics to improve stall margin. The -232 could produce 20,100 lbf (89.4 kN) of thrust in intermediate power and 32,500 lbf (144.6 kN) in afterburner; alternatively it could produce the same thrust levels as the -229 but increase inspection intervals by 40%. The -232 was not pursued by the USAF, but many of the improvements were incorporated into the -229EEP to increase its reliability and inspection intervals.[19][20]

Specifications (F100-229A/232)

[edit]

Data from Pratt & Whitney, Flight International

General characteristics

  • Type: Afterburning turbofan
  • Length: 191 inches (485 cm)
  • Diameter: 34.8 inches (88 cm) inlet, 46.5 inches (118 cm) maximum external
  • Dry weight: 4,100 pounds (1,900 kg)

Components

Performance

  • Maximum thrust:
    • 20,100 pounds-force (89 kN) intermediate power
    • 32,500 pounds-force (145 kN) with afterburner
  • Air mass flow: 275 lb/s (125 kg/s)
  • Thrust-to-weight ratio: 7.92:1

Derivatives

[edit]
Main articles: Pratt & Whitney F401 and Pratt & Whitney PW1120

The F401 was the naval development of the F100 and designed in tandem. It was intended to power the F-14B Tomcat and Rockwell XFV-12, but the engine was canceled due to costs and development issues. The PW1120 turbofan was a smaller derivative of the F100; it was installed as a modification to a single F-4E fighter jet, and powered the canceled IAI Lavi.

Applications

[edit]

See also

[edit]

Related development

Comparable engines

Related lists

References

[edit]
  1. ^ "Designations Of U.S. Military Aero Engines". www.designation-systems.net. Retrieved 17 April 2018.
  2. ^ Connors, pp. 382-385
  3. ^ Connors, pp. 385-391
  4. ^ Davies, Steve. Combat Legend, F-15 Eagle and Strike Eagle. London: Airlife Publishing, Ltd., 2002. ISBN 1-84037-377-6.
  5. ^ McDermott 1972, pp. 1-5
  6. ^ Fernandez 1983, pp. 241–245, 251–254
  7. ^ a b c "The Development of the F100-PW-220 and F110-GE-100 Engines: A Case Study of Risk Assessment and Risk Management" (PDF). dtic.mil. Archived (PDF) from the original on June 28, 2014. Retrieved 17 April 2018.
  8. ^ "Pratt & Whitney F100-PW-100". Smithsonian.
  9. ^ "Pratt & Whitney Engines, F100-PW-220/F100-PW-220E". Florida International University. Archived from the original on 5 March 2016.
  10. ^ "Pratt & Whitney F100-PW-220". National Museum of the United States Air Force. May 28, 2015.
  11. ^ Frank W. Burcham; Donald L. Gatlin; James F. Stewart (1995). An Overview of Integrated Flight-Propulsion Controls Flight Research on the NASA F-15 Research Airplane (PDF) (Technical report). Edwards, CA: NASA Dryden Flight Research Center.
  12. ^ James W. Smolka; Laurence A. Walker; Major Gregory H. Johnson; Gerard S. Schkolnik; Curtis W. Berger; Timothy R. Conners; John S. Orme; Karla S. Shy; C. Bruce Wood; et al. (1996). F-15 ACTIVE Flight Research Program (PDF) (Technical report). Edwards, CA: NASA Dryden Flight Research Center.
  13. ^ "F100-PW-229 Engine Enhancement Package brochure" (PDF). Archived from the original (PDF) on 2014-01-12. Retrieved 2014-01-12.
  14. ^ P&W F100 product page. Archived August 15, 2010, at the Wayback Machine
  15. ^ P&W F100-PW-229 Product Card
  16. ^ Clancy, Tom (2007). Fighter Wing: A Guided Tour of an Air Force Combat Wing. ISBN 978-0-425-21702-3.
  17. ^ "Aerodynamics Mostly Settled On P&W's Newest F100". Aviation Week. 13 February 1998.
  18. ^ Norris, Guy (26 January 1999). "P&W starts F100-299A fan blade tests". Flight International.
  19. ^ "Fighter engine boasts P&W engineering". Flight Global. 24 February 2000.
  20. ^ "P&W completes series of tests on fifth-generation F100 engine". Aviation Week. 21 April 2000.

Bibliography

[edit]
[edit]
Wikimedia Commons has media related to Pratt & Whitney F100.
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