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Post by bwgray on Jan 29, 2010 19:14:37 GMT -5
How does a C-123 aircraft which has 2 recip. and 2 jet engines qualify for the GAAR?
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Post by Allan_Lowson on Jan 29, 2010 19:55:04 GMT -5
It leaves the paraffin at home.  FS cannot really model mixed engines, so the model will in practise be either all piston power or all jet. Most similar cases that I've seen are actually piston models with "dummy" jet engines. |
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Post by Andrew Godden on Jan 29, 2010 20:13:59 GMT -5
How does a C-123 aircraft which has 2 recip. and 2 jet engines qualify for the GAAR? The basic variant of the Fairchild C-123 'Provider' was only fitted with two Pratt & Whitney R-2800-99W "Double Wasp" 18-cylinder radial engines. The "jet engines" you refer to are only "booster" engines and were only fitted to later variants. Consequently, the GAAR organisers deem the Fairchild C-123 'Provider' meets the eligibility criteria for entry in the event. Furthermore, as the earlier post highlights, MSFS is not capable of modeling two different engine types. Therefore, the model submitted for entry, regardless of what is graphically represented, only uses the primary radial engines. |
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Post by Tom Goodrick on Jan 29, 2010 21:43:24 GMT -5
The C-123 basically uses two radial piston engines for cruise-climb, cruise, descent and landing. I did the FD development for this aircraft that I flew in a previous GAAR and gave some extra power for use from short fields as it would have with the jets. I look at 140% power on takeoff and then bring it back to 90% for sustained climb. That simulates the use of the jets. I used between 50% and 65% power for cruise in this GAAR. (I think the test flight was done at 65%.) It was a little faster than my second plane, the Aero Commander 560 which did a little better. Faster planes are at a disadvantage in this GAAR.
I have already completed this GAAR with the C-123 so I hope it is allowed. It was commonly used this way in the 1950's and through the 1970's.
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