rcktnut
Well-Known Member
The distance between the MMT and the nose cone shoulder, in your case 70cm- 27 in. I see the concern in your case, it is close, it will pop the nose cone, but is it a big enough charge to get all the "laundry" out? Stuffer tube or more BP to be sure!!Also, when using the calculator, should I start measuring the BT length from the end of the MMT?
I have a DD 4 in. rocket with both drogue and main compartments of around 12in to pressurize both with 20ft. shock cords and use 1.5 grams BP for both. That gets the shock cords, chutes out totally, but not so much as to overly do it.
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