Trimming Question

[Larry Diamond]

I am sorting out an H9 Aresti 40 that I intend to start with Sportsman
until I get another plane sorted out.

CG appears to be very close. It holds a 45 degree upline straight and
needs a touch of elevator to start the pull through the 1/2 Reverse
Cuban 8. Inverted flight only requires a touch of down elevator.

My tank location was modified from the intended location and is on CG,
to be read, "The front of the fuel tank is about 1/4 inch forward of the
leading edge. I have mounted a YS 63 and has unlimited vertical after 4
tanks of fuel. CG is currently located at 4" back from the LE per the
instructions (aft range). This tank location result in outstanding
ground handling on grass. Zero tendency to nose over, not even close...

The problem is in level flight it pitches to the belly with rudder
input. Made for an interesting landing when I corrected with a touch of
rudder for cross wind. 

Is this an incidence problem? I haven't tried a power off dive yet to
check it out due to time. What else could I look for?

Engine - YS 63 New (2 tanks for break in and 4 flights)
Prop - APC 11x8
Max RPM - 11,400 (slightly rich still)

Thanks,

Larry K. Diamond
Program Manager, KEG

Phone:  (812) 634-4286
Pager:   (877) 575-4163
Fax:      (812) 634-4007
E-Mail:  ldiamon at kimball.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20030501/153c3224/attachment.html