Doug Gerrard

I went back to the altimeter data from my "Just Do It" flight. The descent rate under the RRQS70 main was right at 20fps for a rocket that would have weighed 38 lbs 6ounces after propellant burnout. ...

With 9lbs? The 15 would be fine- it would come in at 10-12 fps. Chris, how many times you've used Rocket Rage Chutes? Did you measure the descent rate using them? I have used them and I can tell yo...

A Rocket Rage RRQS15 would be ideal Mike, you should greatly oversize your Rocket Rage chute if you like your rocket to land softly. The RRQS15 will bring it down but more on the 25 fps rate. I have...

Single Vent Diameter = 2 * SQRT ( volume * 0.0004908 / Pi ) Conway, where does the 0.0004908 come from? Doug

The easiest solution is to make a hole for the existing light. Depending on the manufacture of the electronics they may have remote indicator built in. You CAN transpose the existing LED but I do N...

The reducer I had from LOC also fit very loose and it was molded from plastic. I cut off the ends allowing the ejection charge to blow through it and permanently glued it into place. Of course your ...

I throw out some ideas for you to consider. I have bought full length coupler tubes from Hawk Mountain for their standard size tubes. So if you want extra length couplers you can make them any size ...

You may also want to consider West Systems 410 Microlight filler. You can add it to any brand epoxy and depending on how much you add you can get any consistency you want from syrup to peanut butter....

I have not used AeroPoxy Light but based on it's description it seems similar to something I have used called SuperFil. Have you tried it? It is a two part epoxy based set-up with lots of filler. I...

I like the PET2 but as an alternative you may wish to consider Xavien Doug

I am mostly horrified of accelerometers, and have seen them kill many more rockets than all baro units combined (editorial comment, but based on many observations). My observations have been just the ...

They make a 3" nose cone. Doug

but i really want complete flight logging so i can download the data into a spreadsheet and generate all kinds of interesting, and worthless, charts. The G-Wiz MC2 provides for exporting data into a s...

Was wondering if anyone would be for Hire for a Tracking bit on Sunday. Or have a Tracking device as a Loaner. Big thing there is lack of experince as compared to others that own them thus the request...

It should be worth it, you won't even need a neck brace. It should be slow enough they might even collide. That would make for some great footage. To get the decoder ring you need to get the specia...