Senior Space Cadet
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- May 23, 2020
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I just finished my latest rocket, a pretty small light guy. I used snap swivels to install everything. One for the parachute, one for the nosecone, one for the altimeter. Makes replacing or switching stuff out easy, but I was wondering how much difference in apogee, if at all, snap swivels made vs. a knot.
Turns out that two snap swivels, on this rocket, make a difference of about 36ft in the apogee.
For recreational launching, who cares about 36ft. ? But if I were really serious about going for altitude, which I kind of am with this rocket, I'd probably only use a snap swivel for the chute.
I only ran numbers for an Estes C6-7 motor. Might be more or less for other motors.
Turns out that two snap swivels, on this rocket, make a difference of about 36ft in the apogee.
For recreational launching, who cares about 36ft. ? But if I were really serious about going for altitude, which I kind of am with this rocket, I'd probably only use a snap swivel for the chute.
I only ran numbers for an Estes C6-7 motor. Might be more or less for other motors.