Doug Gerrard

I swear that was the guy who bit me last summer.....

What happened on Mike's rocket? It looks like one or more motors is/are burning on the ground next to the pad. And is that I see Joe putting a rocket on a rod? What's going on here....? Doug

Should a chute of this size be better off with a deployment bag? No. I've tried several different deployment bags and my recommendation is, don't use them. I use piston's and if I want to wrap the c...

Since I don't live in a vast Metropolis, I have to rely on mail order and I prefer The Composite Store Good people and fast service and delivery, even with Ground Shipping. Doug

I have flown a New Mexico Flag and Art flies his Colorado and US Flag's so it shouldn't be a problem. We typically fly ours about 12 to 15 feet off the ground but I think it would be cool to show al...

Absolutely kool tinkering but what triggers the device? If the bird is on the ground and out of sight - what senses/determines touchdown? Or is it shock activated? Wait a second Doug, where did your l...

I have a section of 4 inch OD and 3.75 inch ID clear tubing 12 inches long you can check out at MHM if you like. Doug

I believe it was started more as a means to roughly track what was being consumed on NCR's launch sites and not really as a contest It may have not have started as a contest, but it is a contest with ...

The AP bonfire has ALWAYS been an automatically computed result from the input of the flight cards. If it requires anything manual beyond entering the flight card data and occasionally updating the mo...

Not sure why we need to worry about the code if people just put the total weight of the propellant(s) on the flight card with the flight. Hell, just send it in after the launch. It doesn't even have ...

Well Joe, I have to say I am once again disappointed with the Contests of NCR. The contest states: The club member who burns the most weight in Ammonium Perchlorate Composite Propellent according to ...

AP Bonfire results are automatically tabulated from the launch logs and totalled from the motor database. The only logical way to do the AP bonfire is to have the fliers put down on their flight card...

When will the totals for the AP Bonfire be posted for 2008? Since not all motors are in the data base nor all the motors are even listed for each flight, should I just send you the total propellant I...

Well there's no point in discussing this anymore with someone that is 100% convinced. But for the rest of you, remember those assumptions that are used to calculate the Center of Pressure? I looked ...

Another cause of cartwheels that almost nobody ever talks about is a lateral mass offset. If the center of mass is a little bit away from the centerline, then the motor thrust will make your rocket pi...