Doug Gerrard

Wal-mart carries something like what you're talking about. I think they called it a "sports camera" for mounting on the side of your helmet. A guy flew it strapped on to a 2.6" G motor rocket and it...

I really, really, want to finish Freeze Frame by October. The M1419 has been calling my name. Freeze Frame is still under construction as well as the web page but some photos can be found at It is ...

Are you talking about for altitude or duration? Also, why limited it to those motors? I propose H Dual eggloft altitude by altimeter. Eggs must be returned unbroken but any combination of certified...

Never tried it with HPR igniters, but it should work the same way as the estes. I would never make that assumption and I rarely use the word never. If there is one thing I've learned it is that what ...

simultaneous ignition probably depends more on other factors than series v parallel such as the propellant type, igniter pyrogen type, placement, etc assuming one has a decent set up and batteries I a...

I like the idea too but for Oktoberfest. What about launching a dozen eggs launched before 9:00? I figured losser has to fix breakfest. Doug

There is an excellent site at ROL that discusses black powder charges and how to calculate them. My gut instinct is that the 1.5 grams with the motor will be fine. For my 6", 24" chute compartment ...

I too had heard the auguments for using series e-matches and in fact I have tried doing it. For those of you who will be around Friday evening I have some close ups of motor ignition with the high sp...

Thanks everyone. I'm not that familar with other brands other than Aerotech. I've used AMW on a few occasions when Jim was still renting. The guy I borrowed it from says Tim is suppose to send him ...

It does fit in a liner but the washer goes between the nozzle and the snap ring. I estimate a 2.75" OD and about 2" ID and about 1/4" thick. I think it distributes the load to the graphite nozzle. ...

In my preparation for MHM, I noticed the AMW 75mm casing I borrowed is missing the "nozzle washer". Can someone bring a spare that I can borrow? I'm hoping I could get it from Wildman but I would li...

You're wecome to use mine after my flight(s). I plan on doing mine on Friday but it will depend on the weather. Doug

Start by throwing the lug away and switch to rail buttons 😉 Seriously, the issue isn't so much length as distance between the two rail guides / launch lugs. For a rocket that size, don't just use ...

Kyle, For what its worth, BDCR stands for Big Dumb Camera Rocket because I was in the same delima. It was orginally BDR until I added the camera. I'm sure when you show up with it we'll call it all...

The only thing I can contribute it to is either (1) it never got powered up or (2) it couldn't satisfy its requirements to continue. My understanding is if you tell it a particular configuration and ...