Killachrome
Well-Known Member
- Joined
- Aug 1, 2013
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Hi TRF,
I tried posting this in the scratch build section, but no responses so I decided to ask here. In a few days, our 4H group is putting together our dual deploy HPR with motor BU which the kids designed themselves (see attached). I weighed all the components and I put them in OpenRocket as overrides. I was just wondering a few things:
1) The rocket stability is around 4 with a CTI J600RL. Would you recommend weights to lower the stability a bit or fly it as is?
2) Will the fins be big enough to maintain stability in the flight? They are over 2 caliber in length, but they look a bit small when I dry fit them. I personally go with big fins on my builds and I want to make sure.
These kids have been working their butts off for the last month and we have 3 build weeks before our launch so any input is greatly appreciated. I really want them to succeed! Thanks!
View attachment 4HRocketNew.ork
I tried posting this in the scratch build section, but no responses so I decided to ask here. In a few days, our 4H group is putting together our dual deploy HPR with motor BU which the kids designed themselves (see attached). I weighed all the components and I put them in OpenRocket as overrides. I was just wondering a few things:
1) The rocket stability is around 4 with a CTI J600RL. Would you recommend weights to lower the stability a bit or fly it as is?
2) Will the fins be big enough to maintain stability in the flight? They are over 2 caliber in length, but they look a bit small when I dry fit them. I personally go with big fins on my builds and I want to make sure.
These kids have been working their butts off for the last month and we have 3 build weeks before our launch so any input is greatly appreciated. I really want them to succeed! Thanks!
View attachment 4HRocketNew.ork