- Feb 9, 2010
- Reaction score
Very interesting concept,thanks a lot for sharing Hesham.
I thought Northrop's T-38 based solution was interesting. A shame they didn't build it.Foo Fighter said:If the had taken delivery of the SR-53 for this research and education they would have been able to increase efficiency as the SR-53 was ready to go with rocket power.
This thread, page 2, reply #20:sferrin said:What the hell did they stuff in the back end of that M6?
From Wiki's F124-page:Deino said:In that booklet about the Taiwanese IDF-development there are at least three Starfighter-based designs ...
1. The X-27 Lancer
2. F-104M4 + J-79
3. F-104M6 +2x TFE-1042
... the other designs I will post at the Taiwan-projects tread !
Source: Scale Model Enthusiast - Military Series No. 1 / 15. Nov.1996 - everything else is written in Chinese !
In 1978, Garrett announced joint research on the TFE1042 afterburner with Swedish company Volvo Flygmotor AB in order to provide an engine for the AIDC F-CK Indigenous Defence Fighter (IDF) being developed for the Republic of China (Taiwan) Air Force (ROCAF). The TFE731 Model 1042 was touted as a low bypass ratio "military derivative of the proven commercial TFE731 engine" and "provides efficient, reliable, cost effective propulsion for the next generation of light strike and advanced trainer aircraft", with thrust of 4260 lbf (18.9 kN) dry and 6790 lbf (30.2 kN) with afterburner. After initial negotiation, the investment was going to be divided between Garrett, Volvo, AIDC, and Italian company Piaggio. The development would consist of the non-afterburning TFE1042-6 for light attack aircraft/advanced trainer, and TFE1042-7 for the AMX or F-5 upgrade. Garrett would be responsible for the core engine, and Volvo would be responsible for the fan section and the afterburner. The engine first ran for 3 hours at a Volvo test facility in 1979.
AIDC also suggested upgrading TFE1042-7 to 8000 lbf (31 to 36 kN) thrust as twin engine solution, in order to compete with General Electric F404 for applications such as the JAS 39 Gripen. However, the Gripen project decided to continue with a single engine F404 variant, built by Volvo, and Volvo left the project to at that point to focus on the Gripen work. Piaggio asked to participate at a later date due to financial reasons and left the program as well. Thus only Garrett and AIDC invested in the new International Turbine Engine Corporation (ITEC), with the contract signed in 1982.
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. The F-CK IDF first flew in 1989, and aircraft were delivered through 1999.
Thanks for info, DynomanDynoman said:The "G" was the "Super Starfighter" with stronger airframe, larger tail, increased fuel capacity, and upgraded avionics for work as a fighter-bomber. The F-104G was sold all over the world, serving with the Germans, Dutch, Taiwanese, etc. The document on the conceptual growth variants of the F-104G uses the aircraft as a baseline.
Very interesting circle-5circle-5 said:Lockheed CL-981 manufacturer's display model.
In addition to the retractable canard, the wing is larger than a standard F-104 wing (250 sq.ft. vs. 230 sq.ft.) This larger wing is different from the NF-104 wing, which had simple tip extensions to position the RCS roll nozzles further outboard (to increase their effectiveness). Instead, the CL-981 extensions were at the wing root, with a dihedral reduction from 10 to 7 degrees. The CL-981 would have been equipped with an uprated J79/J1Q engine with auxiliary inlet doors.
Very interestingGTX said:One that I wasn't previously aware of: apparently back before they settled on the Mirage III there was Australian interest in a RR Avon powered version of the F-104: