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Old 07-28-2008 | 01:09 AM
  #1237  
Shubova
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From: Covina, CA
Default RE: GP Super Stearman

Well I had my first flight with the Super Stearman. I used the Cline fuel system (regulator) it works great. Although I made mistake with it; they give you a small check valve to put in the exhaust line to maintain tank pressure. When I filled the tank the check valve didn’t allow the air pressure to come out. So cut the line between the tank and the check valve and added a piece of tubing to reconnect the line when the tank is full…it worked.

I’m using a Saito 180 with a 16-6 prop which gave me a little over 10 grand rpms. It’s more than enough power; it did rolls and loops with no problems. I have friend who is very good with aerobatics, he flew it and I was surprised [sm=eek.gif]that he could do a decent knife edge and almost was able to hang it on its prop. I suppose if I had the right prop it would have done it.

The only problem that really concerns me now is that I had to add about a ¼ inch down trim to the elevator. I use little trim in rudder and nothing on the ailerons.
I think, from what I have read in the past posts on this thread, is that there may be a problem with the wing incidence. Someone at the field said to check the incidence of the lower wing and horizontal stab to see if they are both at “0”. I haven’t got a chance to check it yet but if that’s okay then I’ll look at the incidence of the top wing. I did notice when I installed the top wing that both wings twisted a little when I screwed them together, may be that’s the problem. If the problem is in the incidence I’ll use nylon washers to adjust it.

Does any one have any advise as far as the incidence?
Thanks and Happy Flying!
Shubova
[8D]