Thrust offset for Twin
03-23-2002, 01:08 AM
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Thrust offset for Twin
I'm in the process of scratch building a twin using 2 OS.25's. I have heard that the thrust offset is not the same for both engines...any input??
03-23-2002, 01:45 AM
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Thrust offset for Twin
I only have one design manual with even mentions such. It reccomends the lefthand engine to be straight-forward, and the righthand one to be tilted 2-3 degrees out. This is a manual of nearly 20 years ago, and things may have changed since.
Try it. Can add washers to remove it later.
Wm.
Try it. Can add washers to remove it later.
Wm.
03-23-2002, 03:45 AM
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Thrust offset for Twin
Thanks! The washer trick will work great as the fuselages are profile. From what I hear about twins, I can't wait for my first engine failure!!
03-23-2002, 03:59 AM
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Thrust offset for Twin
The hobbico TwinStar uses 3 deg out thrust and 3 deg. down. The ads are true about this one. Flys good on one engine. Had a fair amount of single engine runs and single engine flame out on take off when using those OS.25FP's. Solved it by putting TT.36PRO's on it. MUCH BETTER.
Edwin
Edwin
