H james,

I use silkspan on the windows.  haven't tried polyspan, but it WOULD be more durable.  The Junar is in the high 600 squares.  it is basically a USA-1 wing, and the USA-1 is advertised as 700 squares.  The thin airfoil works best if kept fairly light.  Billy's were in the low-mid 50 oz. range.

Big Bear

Whatcha gunna use for power ??

Plan to use PA 61/pipe (unless I decide to crossover to the dark side and use electric ).  I got to talk to Billy at the Nats and he said that would be a good set up, I just didn't think to ask him the wing area or how to cover the fuse sides.

James

just iron on some SLC - then cover as usual - tough as all getout and light too!!!!

  I would probably use silk or silkspan over polyspan. I would be very concerned about getting a hole poked in it.

      Brett

This is a short kit I bought off Stuka and the side cutouts are laser cut as well, otherwise I probably wouldn't have cut them out.

James

Really!  How much weight can be saved by cutting out a few square inches of fuselage side, and then covering with tissue?  Seems like an exercise in futility!

Floyd

Hi Floyd,

Because air is lighter than wood!

I know that you know Billy Werwage.  To say that he is obsessed with keeping weight down is an understatement!   Check out his P-47 "Geo Bolt" plans.  he doesn't cut windows back there, but he carves/sands the fuse sides from the inside to about 3/32nd or 1/16th.

Like it has been pointed out to me, every ounce becomes 10 ounces when we are doing maneuvers.  And weight at the tail is not usually good, since it takes a LOT more weight up front to balance everything.

GMA did the *windows* on the '57 GB Nobler, so that has been around a LONG time.

I won't argue with Billy until after I get my 4th World Championship in F2B.

Bill