Honeywell/ITEC F124
F124 / F125 | |
---|---|
Honeywell F124 cutaway | |
Type | Turbofan |
National origin | United States / Taiwan (Republic of China)
|
Manufacturer | International Turbine Engine Corporation / Honeywell
|
First run | 1979 [1] |
Major applications | |
Number built | 460 (by 2004) [1] |
Developed from | Honeywell TFE731
|
The Honeywell/ITEC F124 is a low-bypass
Development
In 1978, Garrett announced joint research on the TFE1042 afterburner with Swedish company
In 1988, ITEC decided to invest in the 12,000 lb TFE1088-12, which was re-designated as TFE1042-70A (for political reason as well). Preliminary study had shown that IDF could supercruise with the new engine. At the same time, GE decided to enter the market with J101/SF, a smaller version of F404. However, after the IDF order was cut in half due to budget concerns, the TFE1088-12 engine upgrade plan ended as well.[2] The F-CK IDF first flew in 1989, and aircraft were delivered through 1999.[1]
Garrett introduced the TFE742 concept in the early 1990s. Consisting of an uprated core from the TFE1042, the TFE742 was promoted for a twin-engine version of the
In the mid-1990s,
T-45 Goshawk / BAE Systems Hawk
In the early 1990s, the
The possibility of a F124-powered T-45 arose again in 1996 when
L-159
In 1994, the F124 engine was selected to power the Czech
M-346
In 2000,
X-45A
The F124 engine powered the Boeing X-45A unmanned combat aerial vehicle demonstrator in the early 2000s.[15]
T-5 Brave Eagle
In 2017 the Aerospace Industrial Development Corporation announced that their AIDC T-5 Brave Eagle would use a variant of the F124.[16]
Possible Jaguar usage
The afterburning F125 engine was being considered, in 2009, by the Indian Air Force as a replacement for the Rolls-Royce Turbomeca Adour engines in their SEPECAT Jaguar aircraft. The new engine would be both lighter and more powerful. It was successfully demonstrated in 2007.[17] This proposal of Indian Air Force to up-engine its fleet of SEPECAT Jaguar ground attack aircraft stalled after a decade in August 2019 owing to the high cost involved. Jane's quoted that Honeywell quoted a price of USD2.4 billion ₹18,500 crore (equivalent to ₹230 billion or US$3 billion in 2023) for 180 F-125IN turbofan engines as replacements for the Rolls-Royce Turbomeca Adour Mk 811 powerpacks originally installed in the Jaguars.[18]
Design
The F124 engine is a low-bypass, two-spool engine (meaning that there are two rotating shafts, a high-pressure shaft and a low-pressure shaft). The fan/low-pressure compressor has three stages with titanium blades. The first stage has 30 blades,[19] and the overall pressure ratio for the three-stage fan is 2.5:1. Some of the air is bypassed (Bypass ratio of 0.472:1), and the rest is fed to the high-pressure compressor.[1]
The high-pressure compressor (HPC) has four axial stages and a fifth centrifugal stage. All the blades and the impeller are made from titanium.[1]
The fuel is burned in an
Variants
- F124-GA-100
- This is the original variant of the engine. It powered the Boeing X-45 demonstrator.
- F124-GA-200
- Slightly de-rated variant of the F124-GA-100; the maximum thrust is 6250 lbf (27.80 kN) and the engine weighs 28 lb (13 kg) less.Aermacchi M-346.[21]
- F124-GA-400
- Variation of the F124-GA-100, modified for the BAE Hawk. The engine was flight tested in the T-45, but the United States Navy decided not to re-engine the aircraft with this engine.[19]
- F125-GA-100
- Also known as the TFE1042-70. This is the basic afterburning variant of the engine. 325 produced for the AIDC F-CK-1 Ching-kuo program.[22]
- F125X
- Proposed advanced variant of the F125 engine, with a maximum thrust of 12,500 lbf (56 kN).[23]
- F125XX
- Further advanced variant of the F125 engine, this one producing 16,400 lbf (73 kN) of thrust. If it were built, there would have been a related F124XX non-afterburning variant, producing 10,800 lbf (48 kN) of thrust.[23]
- Vega Project
- Taiwan NCSIST has formulated a plan for the "Vega Project" since 2014 to develop a propulsion system based on the needs of a new generation of fighters after 2020, but the overall budget is not large, and the initial stage is mainly based on evaluation, and in 2016, the board of directors of the Chinese Academy of Sciences approved the application for the annual national defense key technology research and development donation subsidy, and reported it to the Taiwan National Defense Armaments Bureau for construction. Since the TFE-1042-70 engine was funded and owned by the Republic of China, the "Vega Star" program was developed on this basis. [24] The director of the general discipline department of Taiwan Air Force Aviation Technology College said that after the successful development of the AIDC F-CK-1 Ching-kuo fighter, Taiwan Air Force Aviation Technology College has the number 1011~1014 (TFE-1042) engine, in order to cooperate with the Air Force to develop the next generation of fighters. Reverse engineer engine No.1014 to develop a next-generation engine. [25]
Applications
- F124
- Aero L-159 Alca
- AIDC T-5 Brave Eagle
- Alenia Aermacchi M-346 Master
- Boeing X-45
- F125
Specifications (F124-GA-100)
General characteristics
- Type: Turbofan
- Length: 102.1 in (259 cm)
- Diameter: 36 in (91.4 cm)
- Dry weight: 1050 lb (521.6 kg)
Components
- Compressor: 3 axial fan (low pressure compressor) stages, 4 axial high pressure compressor stages, 1 centrifugal high pressure compressor stage
- Turbine: 1 stage high pressure turbine, 1 stage low pressure turbine
Performance
- Maximum thrust: 6280 lbf (28 kN)
- Overall pressure ratio: 19.4:1
- Bypass ratio: 0.49:1
- Turbine inlet temperature: 1,617 K (2,911 °R; 1,344 °C; 2,451 °F)[27]
- Specific fuel consumption: 0.81 lb/(lbf⋅h) (23 g/(kN⋅s))[28]
- Thrust-to-weight ratio: 5.3:1
See also
Related development
Comparable engines
Related lists
References
- ^ a b c d e f g h i j Honeywell F124 (TFE1042). Forecast International[permanent dead link]. Archived Jul 2005. Accessed 22 Dec 2009.
- ^ Hua, Hsi-Chun (1997). Story of Yun Han (in Chinese). China Productivity Center.
- .
- Gale A12033269.
- ISSN 1423-3215.
- ISSN 0015-4547. Archived from the originalon October 3, 2007.
- OCLC 192776129.
- The Free Library.
- ^ .Warwick, Graham (1996). "F124 powers Australian T-45 bid".Flight International. 7 Feb 1996. Accessed 23 Dec 2009.
- ^ Norris, Guy (1996). "ITEC turns down BAe on RAAF". Flight International. 3 Apr 1996, p. 5. Accessed 23 Dec 2009.
- ^ "BAe's Hawk trainer chosen for RAAF's lead-in fighter project", Flight International. 20 Nov 1996, p. 22. Accessed 23 Dec 2009.
- ^ Lewis, Paul and Phelan, Paul (1997). "RAAF stays with Adour on Hawk". Flight International. 5 Mar 1997, p. 14. Accessed 23 Dec 2009.
- ^ "F124 engine turns Yak-130 into the Aermacchi 346". Flight International. 25 Jul 2000, p. 8. Accessed 23 Dec 2009.
- ^ Govindasamy, Siva (2009). "Dubai 09: UAE selects Honeywell's F124 engines for M-346 fleet". Flight Daily News. 16 Nov 2009. Accessed 23 Dec 2009.
- ^ "Military Engine Directory". Flight International. 8 May 2001, p. 56. Accessed 23 Dec 2009.
- ^ Grevatt, Jon. "Taiwan starts production of XAT-5 prototype". janes.com. Janes. Retrieved 8 May 2019.
- ^ Honeywell to Give Indian Air Force's Jaguar Fighter Aircraft Superior Mission Capability (2009). India Defense. 18 Feb 2009. Accessed 22 Dec 2009.
- ^ "Engine upgrade for Indian Jaguars stalls". Jane's 360. 21 August 2019. Retrieved 3 September 2019.
- ^ a b c ITEC TFE1042-70. Jane's Aero Engines. Last Updated 30 Apr 2009. Accessed 22 Dec 2009.
- ^ a b F124. Honeywell F-124 page Archived 2015-01-08 at the Wayback Machine. Accessed 22 Dec 2009.
- ^ Dubai 09: UAE selects Honeywell's F124 engines for M-346 fleet (2009). Flight Global. 16 Nov 2009. Accessed 22 Dec 2009.
- ^ Pocock, Chris. "AIDC aims for greater role as aerospace sector supplier". www.ainonline.com. AIN Online. Retrieved 8 August 2019.
- ^ a b "ITEC ready to start F125X turbofan". Flight International. 8 Apr 1992, p. 13. Accessed 23 Dec 2009.
- ^ Chinese Academy of Sciences Vega Project Exposure R&D Fighter Engine. United Daily News. 2016-04-19.
- ^ Ching-kuo engine reverse engineering to build the heart of Indigenous aircraft design and building. NOWnews. 2018-10-31.
- ^ Gas Turbine Engines. Aviation Week & Space Technology Source Book 2009. p. 119.
- OCLC 7344708326.
- ^ Meier, Nathan. "Military Turbojet/Turbofan Specifications". jet-engine.net. Archived from the original on 2022-12-27. Retrieved 2022-12-27.
- Ching-Kuo (IDF) page on airforce-technology.com[unreliable source?]
- Honeywell Tests First Production Configuration F124-GA-200
External links
- Honeywell Aerospace F124 page
- Honeywell Aerospace F125 page
- "TFE 1042 technical description". Flight International. 21 June 1980.