Doug Gerrard

(sorry, I guess I don't consider asking peoples opinion as research 😉 ) If you're looking for a list of considerations, here are a few more. - No tools required for assembly on AT, snap rings on AMW....

This reminds me of the childhood argument of which is better Ford or Chevy? or who can forget PC or Mac? It is really a personal choice. There are advantages and disadvantages to both. I use mostly...

I am in the design of my Level 3 also. What is the best way to deploy? Is it better to have the booster on its own recovery, and bring down the front half on its own? Or do you keep them together on a...

I know its not like to cool video you do but its a start... technically its not video. 5 pounds each? And I was worried about my whole rocket aft end being 10 pounds! Your camera must be heavy enough ...

Yes, but in slow motion they are staggered very slightly. It took 5 frames from first to last at 400 frames per second so about 12 msec but i'm not complaining. Hell, I'm happy if they come off peri...

OK it appears to be working on my site. I went home at lunch for a quick update. It is near the bottom of Freeze Frame page and once you click on the thumbnail it goes to the video. The thumbnail ...

It's going well, everything is on track. I tested the dropping the booster and video taped it but the link doesn't seem to work. Once it gets repaired I'll post it here. I nearly finished with the ...

JW, Why not use an edge sander? I don't know how precise you have to be but you should be able to get in the range between 0.080 and 0.100. If you send me the rocket, I'll sand them off for you. Dou...

No, I haven't seen what you described. The West Systems is clear for both resin and hardner. I was sort of kidding about being surprised because all the stuff I had used was an amber color. Doug

I'm just guessing too and I rarely use motor ejection anymore. It just seems like anytime the delay exceeds about 10 or 12 seconds, the uncertainities compund to the effect that using motor ejection ...

So yes for lower/mid High power motor flyers sure. 38mm and under you bet. H, I and small J like J350. But those allready have delays and ejection charge capable. to me what is in place allreay works ...

I was at LDRS next to Aerotech and they were demonstrating their new products. In particular ws a nifty littly device that was an electronic delay element. It screwed onto the forward end of the mot...

Sounds like a good plan. For redundancy you can use the two electric matches going into the same charge. If you want to have separate charges for each unit, you can program the MC to fire 1 sec aft...

I have a G-Whiz MC high G that is rated for 100 g's. The components are coated in epoxy and perhaps a different accelerometer. Check out

Correct, you really don't have to worry about it touching anything. Its mostly the concern about could if it could break the wire by working its way back and forth. If done on the launch field it ca...