edward

From Rocket Materials 4 x #4 screws has an average of 152 lbs before they sheared. I'm looking up nylon in one of my books and will have some math later. Edward

You'd think if it were as bad as CFC's they'd ban them. They still sell it in up to 55 gallon barrels 🙂 Edward

Have you ever tried Brakleen? The chlorinated stuff works *way* better. I've fired a motor, let it sit in the sun for 2 months, then cleaned it with that and it is as shiny as new. Edward

Bass Pro has some. Just have to ask at the desk. Edward

I buy my eyenuts from CD Fasteners in Fort Collins. I think when I bought some 3/8" ones they were $6 apiece. I'm betting most of the time the harness fails before the eyenut. Edward

You can go to They have tables for the force it would take for the ring to fail. A quick lookup shows that a similar ring to the one on AMW cases the ring fails at 12930lbs with a safety factor of 3 a...

The way on the bottom is actually the correct method. The other method results in an unstable piston. Edward

Personally I wouldn't put my electronics in a piston and still use it as a piston. Just the thought of shooting it out of the rocket and all the jostling doesn't seem that great. Just my opinion. Al...

So you have .588 in^2 as your area that you need in holes. So now you wanted 6 holes around the airframe. This would be .588 in^2 /6 or .098 in^2 for each hole. A = pi*r^2 so r = SQRT(a/pi). Theref...

These hybrids are mainly aimed at the people who have invested in the Hypertek system and want another option to fly. The basic Hypertek setup was a tank that connected to a plastic disposable fuel g...

Yes, I do - this weekend. What connector does the GSE have to a tank? I can bring a small 20lb tank that would be warm enough , just need to get the right connector to it. Edward

I'm wondering if the hybrid support will be at the launch. I'm about a 50% right now but wil know more as the week progresses. Edward

I'd use a regular e-match to light the motor. If you look you'll see the supplied igniter is just a resistor that needs 24v to heat up and get the motor going. Swap that out for an e-match and then ...

They aren't going out of business - I talk to Nick and they are just trying to lighten the inventory a little. Edward

Yes, you can send the A2 up again. Paper or Plastic? Edward