- Jan 18, 2009
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Do you prefer (if you have the choice) to pack a parachute in tight or loose?
That, right there, is the most important part. How hard it is doesn't matter -- some commercial (non-rocketry) deployment bags, when packed, and REALLY hard. The key is they're packed such that the parachute deploys neatly and easily.It's folded in such a way that it will deploy in a slow...step by step manner, not snap open instantly causing undo stress.
I usually set the nomex just above the body tube and insert it from there allowing the shock chord (kevlar) below the nomex to fall into the body tube. This way the nomex doesn't have to slide on the shock chord to leave the body tube. I usually have a couple feet of nomex above this point which transistion to elastic (I've gone away from elastic lately).I have a question along these same lines...I have made a shock cord system using 100 lb. test Kevlar cord epoxied to the motor mount. This Kevlar cord ends about 1" before the end of the main tube and then is attached by a snap swivel to a 24" elastic chute cord. I am using a 3"X3" Nomex blanket for my wadding replacement. The chute is 18" nylon. This is being used in an Ested CC express.
The motor mount on the sustainer stage has been modified to accomodate an "E" size engine (I've glassed the fins and have good joint fillets with glass stips in the fillets).
My question is...When packing the Nomex pad, should I slide the Nomex pad down the whole length of the Kevlar shock cord to the edge of the motor mount. Or, should I leave the Nomex pushed only up to the point of the swivel snap where the Kevlar and elastic cords are joined? Will the force of the ejection charge push the Nomex pad down the Kevlar cord and out of the tube completely?
What size are we talking about? Different sizes require different methods. High Power? 45in and up is mostly what I fly.'It's folded in such a way that it will deploy in a slow...step by step manner, not snap open instantly causing undo stress'
Care to share?
If your folding method is repeatable (the unfolding always happens within a given time period) I'd like to give it a try.