On Saturday,
March 10, we went to the Old National Pike Park for a few tests of
the rear ejection Big Daddy and the Fat Boy design rockets. It was a partly
cloudy day. The wind was generally under 10mph, but there were
some gusts. We got off six launches with altimeters and real
eggs.
Objectives:
- Get more altimeter scores for
TARC qualification.
- Continue testing the rear ejection.
- Testing of the NOVAAR launch site
launch rods.
Lessons:
- We continued having problems with the wind.
While we angled the rod a little, apparently not enough. Most of the
flights went into the wind and lost a lot of altitude. The
shorter Big Daddy was more affected by the wind than the Fat Boy
design.
- The rear deployment worked well
three time in a row. I think we have this issues solved.
- We needed an 18 volt battery to
ignite the composite motors with the copper top igniters. The
6 volt didn't seem to work.
- We need a better launch controller.
And we need to bring a backup.
- An egg broke on the last Fat Boy
design launch. This is the second time we broke an egg on this
rocket with an E15 composite motor. This may just be too
energetic for this design. We need to make sure the egg is
firm in the nose cones.
- Our scale seems to be broken.
We used one supplied by James' dad. We need to resolve this
issue.
- We got some good altimeter data.
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Launches
Flight |
Order |
Load |
Results |
Comment |
Rear Daddy V3
Flight 1 (Video)
Initial Flight |
2 |
E18-4, 329g
Egg, Altimeter 2,
2-12" Chutes, Our tower 5d |
33sec,
754ft,
Altimeter Data |
Score: 108 - Wind
cocking, chutes deployed nice |
Rear Daddy V3
Flight 2 (Video) |
4 |
E18-4, 321g
Egg, Altimeter 2,
2-12" Chutes, Our tower 5d |
48sec,
863ft
Altimeter Data |
Score: 16 - Straight flight,
chutes deployed nice |
Rear Daddy V3
Flight 3 (Video) |
6 |
E18-4, 325g
Egg, Altimeter 2,
2-12" Chutes, Our tower 8d |
43sec,
773ft,
Altimeter Data |
Score: 79 - Wind cocking,
chutes deployed nice |
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Fat Boy Design V2
Flight 1 (Video) |
1 |
E9-4, 270g
Egg, Altimeter B,
14" Chute, Our tower 5d |
45sec,
804ft,
Altimeter Data |
Score: 47 - Straight flight |
Fat Boy Design V1
Flight 1 (Video) |
3 |
E9-8, 284g
Egg, Altimeter B,
15" Chute, Our tower 5d |
38sec,
665ft,
Altimeter Data |
Score: 192 - Wind cocking, some
wobble, chute needs spill hole, we almost hit a bird! |
Fat Boy Design V1
Flight 2 (Video) |
5 |
E15-7, 281g
Egg, Altimeter B,
15" Chute, Our tower 8d |
57sec,
944ft,
Altimeter Data |
Score: 106 - Egg cracked, straight flight,
some wobble, chute needs spill hole |
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