This is my first successful attempt at launching one of my rockets over 10,000 feet. It was also a proof of concept of a larger rocket breaking mach without needing to be totally glassed.
The base rocket is a 4 inch paper tube, Madcow Super DX-3. It comes standard with a 38mm motor mount- which on a previous one I built, took EVERY 38mm motor I could find. Not one of them was able to shred or otherwise overpower the airframe.- so I modified this new one with a 54mm motor mount.
The motor on this flight was a 2,833 newton second 6GXL L-805 White by Cesaroni (CTI). I had 2 flight computers onboard: GWIZ- HCX and LCX, a Garmin Astro GPS unit, and of course a GoPro.
Maximum altitude: 11,179 feet
Time to apogee: 22 seconds
Maximum airspeed: 1243.57 f/sec = 848mph = mach 1.12
Time to mach: 2.51 seconds
Altitude of mach transition: 1,369.2 feet
Altitude of max airspeed: 2181.67 feet
Time to booster burnout: 3.19 seconds
Altitude of booster burnout: 2,184.15 feet
Maximum acceleration 15.01 G
Altitude of max acceleration: 20.65 feet
Something I found particularly interesting was how the rocket looses a bit of stability while exceeding the speed of sound. Physics is fun!!!
Special thanks to Jack G. for having everything a rocket enthusiast could ever need, and EVERYONE with the Rocketry Organization of California, These folks volunteer tons of their personal time and energy to make every launch happen. Next time I come out I'll have give Greg a break on the mike, I think he did LCO for about 8 hours on saturday!
If you have any questions about this launch/rocket, feel free to ask.