This is a 2 stage rocket design of my own all made from 3” Blue tube. The First stage booster has two 29 mm engines and the 2nd stage has a 38mm engine. It’s duel deployment running a Raven 3 with a RockeTiltometer , all that in a 3” tube is a lot but can be done by using both sides of the sled. This is quite the most complex rocket by far I’ve built. I’m finding out that Rocksim is having a hard time with the booster. When unloading one engine it still shows me the results as if both were loaded and I can’t get a good feel for what loads would be safe if 1 didn’t light. I Finally decided that I’ll use 2 CTI G250 two grain VMAX motors in the booster and Aerotech H245 in the second stage. I’m going to fly it without the booster first with a I218R to make sure it flies straight and we’ll go from there. Pucker factor should be high!
This is my first flame job and I was very happy with it, not bad to be done with spray can paint! I think it will look really hot on the pad!
Weight Dry W/booster - 86 oz.
Weight Dry W/O booster - 72 oz.
More to come!
| Flight Date: | 2014-04-26 |
| Rocket Name: | 222 (Scratch built 2 stage) |
| Flyer's Name: | Rodney Earp |
| Motors: | 2xG250/H178 |
| Launch Site: | ROCC |
| Actual Altitude: | 2,789 Feet |
Nice flight! Wished I waited till dusk when it was darker. the dark matter motor would have been much better.
FILE: C:\Users\Misha\Desktop\Raven 3\April 26 2014 222.FIPa
Average PreLaunch Altitude (ft) = Val: 355.00
Average PreLaunch Axial (Gs) = Val: 1.09
Average PreLaunch Axial Offset = Val: 1.09
Axial Accel (Gs) = Min: -1.13 Max: 20.55
Baro (Atm) = Min: 0.8915 Max: 0.9872
Current Draw (A) = Min: 0.13 Max: 0.25
Flight Count = Val: 76.00
Lateral Accel (Gs) = Min: -3.95 Max: 2.50
Motor Ignition Time (sec) = Val: 0.153
Temperature (F) = Min: 95.78 Max: 96.12
Time (sec) = Min: 0.000 Max: 15.130
Velocity (Accel-Ft/Sec) = Min: -1 Max: 425
Volts Battery (V) = Min: 8.24 Max: 8.26
Volts Pyro 3rd (V) = Min: 0.00 Max: 8.30
Volts Pyro 4th (V) = Min: 0.00 Max: 3.19
Volts Pyro Apogee (V) = Min: 8.26 Max: 8.28
Volts Pyro Main (V) = Min: 8.28 Max: 8.34
[Altitude (Accel-Ft)] = Min: 0 Max: 2804
[Altitude (Baro-Ft-AGL)] = Min: 0 Max: 2789
[Altitude (Baro-Ft-ASL)] = Min: 355 Max: 3144
[Velocity (Accel-Ft/Sec)] = Min: -33 Max: 417
[Velocity (Accel-MPH)] = Min: -23 Max: 284
| Stage | Motor(s) |
|---|---|
| 1 | 2 x CTI 110G250-14A |
| 2 | Aerotech H178DM |
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