> Have you considered the Binder Design Thug? It's in the ballpark for
> the diameter you're seeking, builds nice and strong, and gives a great
> performance on a G64 or G80. On an H128 it's a decent certification
> bird...meaning that you can still see the whole flight. Mine comes in
> at exactly 32 oz, without the motor or recovery wadding (and *with* a
> few ounces of noseweight).
> As a point of reference, 5 members of our NAR Section built and
> certified on Thugs early last year...5 launches, 5 certs, and lots of
> really nice flights since then.
> I don't know if it's still available with the 38mm motor mount option,
> but the thing should be a screamer on an H242. Even the H238 (29mm)
> should kick it pretty good!
One more point on the Thug -- if you add a third centering ring, you can
build the entire model with yellow glue and it'll stand up to any 29 mm
motor made; mine has had two fins sheared off longitudinally, with both
failing in the plywood outboard of the fillet; it's also lawn darted
hard enough to irrecoverably embed the nose cone in the ground, without
any sign of damage to the motor mount or fin can. I cut off the tube,
installed a coupler, grafted on a fresh length of tube, and installed a
new nose cone -- total time, about an hour plus glue drying, and my Thug
was ready to rock and roll again!
These birds are hell for stout -- but be prepared to calculate CP and
add nose weight to maintain stability margin; mine needed about 90 g of
lead in the nose to be stable with an H128 (and no epoxy in the tail,
though it does have my UMRS).
Oh, and they only go about 400 m on an H128-M, so your cert flight is
easy to see... B)
WARNING!! This area has been designated an official DOPE FREE ZONE!!
If you're going to be a dope, please do it somewhere else!
Donald Qualls, aka The Silent Observer NAR # 70141-SR Insured
Rocket Pages http://members.aol.com/silntobsvr/launches.htm
Opinions expressed are my own -- take them for what they're worth
and don't expect them to be perfect.