new2hpr

I'm just floating this out there to see interest. I purchased a few Garmin DC-20 dog collar trackers a while back when I was thinking about my L2 and bigger. Since then, life has kept me too bu...

sold.

sold.

I'd keep it as is, and just go bigger than you'd normally go with the main chute. I've broken a fin on 3 of the last five rockets I've launched, so I need to learn more on this as...

Like Mike, I have only removed the cardboard plug and emptied the powder. I haven't had any issue with pressure. My outboard airstart motors have only a few cubic inches of airspace in front of...

I've always been concerned that the starter (ematch, igniter, or whatever) would open upon firing, like every Estes igniter I've used, so parallel is what I will continue to use. As an EE, I...

Throw it into Rocksim or OpenRocket and check velocity off the rail. Also very handy for figuring out timing for airstarts. -Ken

Exactly.

Most has already been covered above. I wouldn't bother with any additional pyrogen dip for CTI motors. I've lit clusters of them on the ground and in the air (3 38mm CTI's started wit...

Edward and Ed, I paid $100 each for these. They've never been flown (or been on a dog!). What would you give for them? All my L1 level rockets are in need of repair, and my L2 PR Competitor 3 h...

My wife used this for a while for portioning out bulk-purchased meats. Not used anymore, but in perfect shape. I was going to keep it for trying out vacuum bagging on a small scale, but no time righ...

Give me a call, and we can meet up. I'm in SW Longmont, work in Boulder. (303) 870-6747 (cell) -Ken

Unless you're hammering it with a really fast motor, you should be fine. The laundry is porous, and you just need to bleed out enough air so the differential pressure shift doesn't pop off ...

Now THAT's got some serious long-burn BP motors!!!Probably not NAR/TRA certified, though 🙁-Ken Here's another one. Smaller, but with onboard GoPro!

I wouldn't use a pool noodle unless I had an 8" airframe or bigger! Best would be to wrap it with a kevlar sock, but I suppose duct tape would last OK for a flight or 2. My charge for drogue has alwa...