Mike,

I've had two other Performance kits hit mach. My Little Dog and My Arrow. The Arrow (My Pork Arrow) hit mach with no ill effects. Neither one has fiberglass reinforcing layers at the fin mounts. Both, as is the Intimidator, have through the wall fin mounts that I applied liberal amounts of epoxy to on the internal fillets. I think the design is robust enough to take mach without ill effects.

I plan on putting a 5 grain Smokey Sam (5000 NS or so) in my KMAG at MHM. You can use this as an empirical evaluation before you launch yours, should you want.

At Hartsel my Pork Arrow suffered a high speed deploy without damage to the fin can. I think the fin cans on these kits are tough.

Only one answer Mike -get your butt down here and lets v-bag some tip to tip for you.

Thank you very much for the offer. I am limited with time
because of work schedule but I will take a rain check.
I know from Your reputaion You are one of the best at
this.
Thanks.

I ran across Dave H. Level three launch page.

What a great rocket.

http://www.davesnothome.net/rockets/level-3-project.html

Intimidator 4
28.8lbs
M1297
Mach 1.2
13225

With mine being a little smaller motor, and the rocket being a little
lighter, and longer, I think it would be pretty close to =...

He used a special fillet epoxy (West Systems fast-cure epoxy with 404 high density filler) Maybe bette than I used.

I used my epoxy on the fillets at the motor mount and the fillets
at the air frame. I also drilled a hole above my motor retainer and
injected some epoxy. It filled the space between the bottom of the fin
and the top of the white ring that the aeropack screws go through.

His worked very, very well.

I feel better now.

With OpenRocket. I sim at 11194.9'
@753 mph

http://openrocket.sourceforge.net/

Mike, that sure looks like a winning poker hand, got yourself a full house.