ORIGINAL: topgunhobbies
Smithy,
Did you ever get a thrust reading on your jj1800? I will be puting mine in a FB F-15. It should fly the crap out of it. However, I wonder how it would do in s SM F-18E. The F-18 is bigger and heavier.
Yes, my FADEC is in a black shrink tube - looks very similar to yours, except it's an AU-545. Thanks
Tom
Tom,
I have done three runs with the engine so far, all of them pretty much trouble free, I have a digital "strain guage" hooked up to the sliding platform that the engine sits on, bare in mind I am at sea level and our air is "very good" here at night time, I think at the time it had a corrected altitude of -83ft so the air is nice and dense as well as cool. For every 300ft gain in altitude you loose a considerable % of thrust, I'm not sure of the exact figures though, I'm sure somebody will be able to tell us.
I took two readings in excess of 20lbs static thrust, the first was at 114,000rpm and the reading peaked at 20.08lbs, the second run was at the full 115,000rpm and came out at 20.35lbs, these weren't from a slam accel either, just a progressive increase of throttle, the slam accel gives false peak readings in my humble opinion. Read my post on the previous page, post #1212 I think.
This engine should fly the FB F-15 very nicely indeed, I'm affraid I know nothing of the SM F-18E but if the weight is not too high, say under 23-24lbs wet, it should fly very well.
Cheers,
Smithy.