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Shure. We will figure it out!!!

Conway, I’ll be happy to drive up to make the pickup and shoot the shit some time if you give me directions and a time to visit. I’d like to pick your brain anyway. I’m on sabbatical still and my…   Read more»

PM me with your Shipping address and I will send it your way Warren

SOLD!!!

I’ll take both.Warren

Gotcha, Doug. Misunderstood. You DO have a VERY NICE setup. Very impressive.

I saw Doug’s video, and he didn’t use a chute.

I did use a chute in the 2 gram test which was to deploy the main. I didn’t use the chute in the separation at apogee test.Doug

Man, I’m so glad you said that, John! I’ve always tested with a chute, going with the premise that you MUST test the way the rocket will fly. I saw Doug’s video, and he didn’t use a chute. The chute…   Read more»

….with my volume, so I’ll start with 2 grams and no chute.Bruce, I have found **PROFOUND** differences in ground testing w/ and w/o the chute! In other words, if 2g works w/o the chute, that doesn’t mean it will work…   Read more»

Well, the online calculators say it will take 2.5 to 3 grams to sheer four 4-40’s with my volume, so I’ll start with 2 grams and no chute. Ken (xman) will give me a hand, and I promise, Ken, we…   Read more»

For a 4/40:Tap = #43 bit, or .089

2-56Clearance Hole = 3/32″Tap Hole = 5/64″4-40Clearance Hole = 1/8″Tap Hole = 3/32″Thanks, guys. Great information. I was going to use (4) 2-56’s, but don’t want to take any chances, so I went up to (4) 4-40’s that most use…   Read more»

For birds 4″ dia and below, I use 2-56 nylon screws. I use 4-40 on some 4″ birds and above.2-56Clearance Hole = 3/32″Tap Hole = 5/64″4-40Clearance Hole = 1/8″Tap Hole = 3/32″Warren

Bruce, if you are going to tap the 4/40’s use a No. 43 drill. Or use a 3/32 without (taken from my old Sunstrand Machinist Handbook). Try them on some scrap pieces first though.Ken.

In my first L2 attempt (bird ~6 pounds), I had the main chute stick (definitely my fault, NEVER hurry!), BUT the rocket separated and was balanced. Fell a couple of thousand feet almost flat. No problem, essentially no damage. In…   Read more»

Thanks Doug and Bruce. Doug you hit the nail right on the head as to what my beliefs/experince is as well as what others have told me. My last project (which Dave Hanson now owns and flys) was a drougeless…   Read more»

I planned on a 36″ drouge chute with roughly 55 to 60lbs of rocketI have debated myself on the use of a drogue at all. I prefer not having a drogue except for one thing. I have seen drougeless dual…   Read more»

Don’t know if this will help, Conway//www.washingtonhighpower.com/Chute%20Calculator.htm

Not to change topics BUT has me curious. I planned on a 36″ drouge chute with roughly 55 to 60lbs of rocket flying to 13 to 14k in alt. Its a Tac chute or square cut chute with no spill…   Read more»

Holy… and that was 2 grams?! That was good! From what I remember from my 2 gram event, that was about right, only I wasn’t using a piston. Lots of flame to singe my chute. Quite easily separates the 2…   Read more»