H9 cap trim issue
#1
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From: durham, NC,
Hi,
I just flew my H9 cap w/ a saito 1.8. Flies GREAT! very impressed.
The only weird thing it does in when I slow down for a landing it flares. I would think this is a thrust line issue but during normal flight the trim doesnt seem to change. Is this a cap thing? with such a high thrust line or should I add in up thrust? The cg is spot on requiring slight up elev when inv. Thanks in advance.
I just flew my H9 cap w/ a saito 1.8. Flies GREAT! very impressed.
The only weird thing it does in when I slow down for a landing it flares. I would think this is a thrust line issue but during normal flight the trim doesnt seem to change. Is this a cap thing? with such a high thrust line or should I add in up thrust? The cg is spot on requiring slight up elev when inv. Thanks in advance.
#3
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From: sarasota, FL
sounds like its tail heavy to me .I have the same plane engine combo . I had to add weight to the nose and took elevator travel down to the bare minimum. great flyer though!!!
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From: durham, NC,
Thanks for the replies. I agree that it sounds like a tail heavy situation, but in flight, if anything, I would want to move the cg back. On my GP .40 size cap they had a couple degrees UP thrust on the motor. I may try changing motor incidence a bit to see what that does. Thanks again.
#5
Just to eliminate this, have you checked the stab incidence to the wing? I put an ARF together that I had to fix by 2 degrees in the stab, the wing and engine were at zero. Just my 02.
#6
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From: durham, NC,
I guess with putting arfs together Ive gotten pretty lazy about checking trivial details like incidence
Ill look at that tonight.
Now why didn't I think of that?
Ill look at that tonight. Now why didn't I think of that?
#7
[QUOTE]Now why didn't I think of that? QUOTE]
Because you were having fun flying.
Flying... Someday snow will melt here and I will fly my new plane...
Because you were having fun flying.
Flying... Someday snow will melt here and I will fly my new plane...




