edward

My DC20 is about 15" away from my electronics and I did a 3 hour 'soak' test. E-matches wired and ready to go with the collar transmitting. One thing I found out was that I had to change the channel...

Tim at the launches generally carries the real stuff...I've not had a problem of late getting it - let me know. Edward

Yes, there are. I generally use 1/2" with 1/16 walls, and have gone up to 5/8 with 1/16" walls. Edward

Since I've discovered the surgical tubing I've been using it exclusively. So easy to make the charges and they are in nice neat containers. For my 2 L3 attempts I've used them - worked great at 20k a...

I'll throw my hat in the ring...just brazed the fins to the fincan....next...packing 10 pounds of recovery gear into a 5 pound bag.

I'm pistons all the way. Never had one jam or fail. Just make sure you ground test! Edward

I will have Alpha Hybrids and Skyrippers Motors at Oktoberfest. If you'd like to fly one let me know - I'll make sure to bring the correct stock and get you taken care of. Edward

If you join NCR (Northern Colorado Rocketry) it is an independent club and that membership allows you to fly at their events. They also require that if you fly high power you be a member of either N...

I'll be attempting my L3 for the 3rd time. Same motor, slightly shorter rocket. It has gotten about 9" shorter since my first attempt at MHM, then got shorter again in July. I think it is about 108...

Yes! I tested them at 3 different KN values. I got an 'a' number of .305 and a 'n' number of .01 . I used potassium nitrate that I got from a co-op. These number were obtained with non-milled potas...

My stand has the motor pointing down as I test hybrids, but it isn't hard to switch around. I used a piece of 1010 rail as the mount with a hinge system on a 1" C aluminum channel to pipe clamp the m...

If you don't want to invest the money I've got a stand I've let members in the club use. Records thrust and pressure at 10kHz. One stand is 6" motor capable to 5000lbs thrust. Edward

I've used a lathe as an arbor press before to get a tube off of a mandrel. I set the chuck to hold the mandrel then backed it off ever so slightly. I then put a live center in the other end with a c...

I'll be there....love Hartsel. Great place to fly. I'll have a bunch of hybrids to fly both days. Edward

I started making sugar motors in PVC - all were core burners, about 6" long in 1.5" PVC. They'd burn a bit before producing useable thrust. Then I moved to using some standard 54mm cases and had muc...