PBic
Well-Known Member
I’m looking for some advise on the number of nose cone shear pins to use for a rocket with a heavy nose cone in a HED configuration. It’s a 4” rocket with a 29” NC. The nose cone alone weighs 27.37oz, and the parachute, blanket, shock cord and quick link add another 22.22oz, for a total of 49.6oz. Do you think 3 ea. 2-56 nylon shear pins are going to be sufficient when the NC/AV bay hits the end of the booster shock cord? I’m planning on a 15” drogue at apogee with 2 or 3 shear pins in the booster. I’d really appreciate input from anyone that flies HED with a heavy NC, and have gone through pretty much every HED thread here. Thanks!