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On Monday, February 20, members from both teams traveled to the Walkersville park launch site for test flights.
The day was partially cloudy, about 70F, with wind up to 8mph. We got off 5 flights with varied results. Flew some drones. No CATOs.
Objectives
- Test a repainted Red rocket with E20 motors at 400g.
- Test both rockets with 12inch cargo chutes.
- Test the Pink rocket with weights around 310g using the E12-6 motors.
- Test the new Orange rocket with E20 motor.
Lessons
- We tried angling the launch rail with the wind about 5degrees for the first two flights.
We then returned to straight up with better results.
- One bad igniter on the E12. Other ignitions seemed to be better with the new way to tape on igniters.
Need to review the technique with differences for the E20s and E12s.
- The Red rocket seemed to be a bit unstable with wiggles at about 30ft, Move the big weight to the nose cone.
- The Orange rocket need much more weight for the E20.
- The Red cargo descents too fast.
- No eggs broken, and we recovered all rockets.
- We need another test launch before qualification.
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Launches
Team |
Rocket |
Flight |
Motor |
Weight |
Alt |
Recovery |
Altitude |
Time |
Comment |
2661 |
Pink (video) |
1 |
E12-6 |
300g |
11 |
12", 4x40" |
685ft |
50sec |
Into the wind |
2661 |
Pink (video) |
2 |
E12-6 |
303g |
11 |
12", 4x40" |
846ft |
36sec |
Straighter but too high |
2662 |
Red (video) |
1 |
E20-7W |
403g |
10 |
12", 6x60" |
684ft |
33sec |
Squirrelly, off to side |
2662 |
Red (video) |
2 |
E20-7W |
400g |
10 |
12", 6x60" |
774ft |
36sec |
Straighter, descent too fast |
2662 |
Orange (video) |
1 |
E20-7W |
333g? |
4 |
12", 6x60" |
958ft |
49sec |
Straight flight, way too high |
Altimeter Data
(Excel format)
Pictures
Teams Loading
High Wind Launching
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