rocketkyle
Well-Known Member
- Joined
- Jun 26, 2009
- Messages
- 1,846
- Reaction score
- 61
Saturday at Airfest I flew a 54mm MD to just under 30k. I had a PerfectFlite SL100 and PerfectFlight MT4 onboard for apogee deployment. The SL100 beeps out both altitude and speed and the MT4 beeps out acceleration and speed. Unfortunately, they were beeping at the same frequency after the flight, which made it impossible to clearly hear them apart from each other. As I was opening up the ebay, a couple wires were stretched which restarted both units. The MT4 doesn't store any data after power-down that I know of, so that was lost completely. I turned the altimeter back on, which reported an altitude of 29,472', and the downloaded data agrees with that.
Now I'm having trouble interpreting the velocity of this flight. The velocity graph shows a peak of ~ 4,600 ft/sec (Mach 4.1) which is impossible, and I'm really confused by the raw data reported.
I attached the raw data in a .txt file, the Perfectflite data file was too large. Does anyone have any ideas on how to find the peak velocity or is it a lost hope?
The motor burn was 1.95-2.00 seconds, and the simulated speed was right at Mach 3.
View attachment RawData.txt
Now I'm having trouble interpreting the velocity of this flight. The velocity graph shows a peak of ~ 4,600 ft/sec (Mach 4.1) which is impossible, and I'm really confused by the raw data reported.
I attached the raw data in a .txt file, the Perfectflite data file was too large. Does anyone have any ideas on how to find the peak velocity or is it a lost hope?
The motor burn was 1.95-2.00 seconds, and the simulated speed was right at Mach 3.
View attachment RawData.txt