New frustrations, but some glimmer of hope.

CG problems. Rec CG is 25% MAC, very conservative for this plane. However measured CG is 37.8% MAC without batteries, and even with the batteries as forward as possible, it will require 8+ oz of firewall lead. I am shooting for 31-33%.

The good news: AUW is 10 lb 15 oz (without the extra lead). Also, if I switch from a tail mounted rudder servo to CG mounted pull-pull, I should save most (or all) of the lead. A 2 oz servo mounted 40" aft of CG equals 8 oz lead on the firewall 10" in front of the CG.

Oh well, I think this is the slowest ARF I have ever built (and it comes with the tail mounted and no wings to join!)

Leonard

PS Under 11 lbs on a 78" span extra - I have got to get this thing in the air!