Looks interesting.
Let us know how it flies.
I would bet it would fly even better/longer with a Cox Tee Dee .020 engine on the nose for power instead of a rocket motor. The stock integral tank Tee Dee .020 runs about 4 minutes on 30% Nitromethane fuel. On 15% it would run at least 5 minutes.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC !