Keith,
Yours is the second version Jim VanLoo's monk kitted by Sig in the late 60's, we had one too. The CG should be close, if not right on with what Mike's Super Chipmunk plans show. The main difference was the carved chin cowl on yours v/s the 2 pc full plastic cowl on the Super Chipmonk. Ours flew slowww with a Mc Coy .35 redhead (lightning bolt) with great line tension. I wish I still had it; it was stolen from my garage 23 years ago. It would easily glide a full lap after the engine quit!You should have a ball with it!
Mike,
I watched Mike Stott fly that bird at the 74' nats in Lake Charles making practice flights!
Amazing its still alive!!
Richard