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I thought it was a rocket!

A water bottle, typically Lexan before the BPA scare, some other chemical after.Edward

What is a ‘Grey Nalgene’ ??

Ill have to give those a try. A least they are cheap enough if you loose one. I may even try a AP lower stage to a BP upper.

The Perfectflite mini and micro timers should fit your application. The mini will light anything if you’ve got enough battery. The weight penalty of the batteries would be the problem if you’re going for an altitude record or something.Ken

Well safety first. I wouldnt ever want to do anything that could be a hazzard to anyone. Only reason I want to try this is on a minimum diameter 24mm rocket with 2 E’s where electronics may be too big…   Read more»

Lots of reasons why this would not be a good idea, the biggest one that comes to mind right off that bat is fire hazard. The physical characteristics of most AP motors and how they ignite make this not only…   Read more»

Give it a try! UST DO IT! 🙂

I applaud the idea, but the problem is one of resources. Specifically, we don’t have the resources to:A) Enter the launch log data into the system – Joe is the only authorized person able to enter launch log data. We…   Read more»

Sounds good, thanks I’ll try that.I guess slag buildup is just one of the associated problems w/ something meant to be facing the other direction. 🙂

Greg, I’m not sure why it did that. There was a good slag pile where the core was. It may havee had something to do with it. I just run the video camera on the automatic mode..and it;s about 75’…   Read more»

Tony,One question for you. On the first burn, do you have any idea what caused the exhaust to suddenly start jumping from side to side toward the end of the thrust phase?Really cool video. I’m hoping to get some good…   Read more»

Tony, so you’re working on that love/hate relationship….good job. I like to see commitment and dedication from guys facing up to difficult situations instead of ignoring them and hoping they go away. –John

John, The second burn on that video was SG 2.0 I’m trying to get a bit more Isp out of it, and still keep as many of the other good traits of SG as I can. I’m still playing around…   Read more»

Tony, looks great! Very impressive burn time in 54mm. I noticed on the audio that the recipe is “Swamp Gas 2.0”. Are you able to mention what alterations you made and why?–John B.

John, Those tests were in the AT54/1706 case. The core is a bit big for that case, but just right for the AT K250 case. The cores are done with a mandrel placed in end caps. One end of the…   Read more»

Hey T, those looked pretty nice! Flying them at BR next year? I think I’ll be out again (after missing last year)……. Did you cast the grain with an offset core or did you drill it out?J

Unfortunately, I don’t see it in his pictures.

can you point out your rocket on any of Mike’s pictures?http://s46.photobucket.com/albums/f131/mshinn2001/

Yeah, that was where I looked. Unfortunately the tail is white and the ground was covered with snow. IF it is on top of the ground (as opposed to being driven a foot or so into the ground) it will…   Read more»