spence
Well-Known Member
- Joined
- Aug 17, 2016
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At yesterdays launch a flyer presented his rocket for an l2 cert. it was 80inches tall, 4 inch diameter, 3 fins , each 4 inch square.
The OR sim had a 2.4 caliper stability, with the cp 26 inches from the bottom. 13:1 thrust ratio.
On paper it looked ok...but the collective experience of the l2 cert team was this was a dangerous design with Such small fins on a tall rocket.
We scrubbed his flight.
Question is...have others seen sims that look fine, but refused to allow it to fly...just based on design judgement?
The OR sim had a 2.4 caliper stability, with the cp 26 inches from the bottom. 13:1 thrust ratio.
On paper it looked ok...but the collective experience of the l2 cert team was this was a dangerous design with Such small fins on a tall rocket.
We scrubbed his flight.
Question is...have others seen sims that look fine, but refused to allow it to fly...just based on design judgement?