Monday, September 24, 2012
"Don't Debate This" Apogee: ~56kft AGL, Max. vel: M2.9.
This is the same rocket discussed below. This rocket had an aluminum fin canister, and a metal-cage reinforced airframe and nosecone. It was beefy, and so "only" went about mach 2.9 and about 10 miles up. Although that is highly impressive for an N motor, or any motor, two things strike me as more impressive still: the rocket flew without shredding, and it returned great footage of the flight. That is success. It was slightly over built, but survived the flight.
The fins and fin can were made from aluminum, and were welded and then given healthy fillets of Durafix, an industrial product that is half-way between welding and solder in strength and heat resistance. They held up just fine, and probably could have survived up to mach 4, although that remains to be tested. The nosecone shows some signs of heat damage, but survived well. It was composite with a metal tip, and extremely beefy.
See the entire build here.
This is an exciting time of the year for rocketry, as all of the balls flight reports slowly leak out. This will certainly be one of the most impressive and important flights of the year.