Activity

Thanks for the info. The reason I am holding off on coming out is right now I work nights and work friday night and every other saturday night 7pm to 7am. I should be changing to a normal work schedule…   Read more»

Welcome to NCR! The Bob Smith epoxy should be fine for all but the more extreme builds. You can get West Systems (though at an inflated price) at McGuckins in Boulder. I just get mine online from Commonwealth or some…   Read more»

Edward, yes ill be there. Bring it along, I would like to check it out. Im just not sure if ill have time to get this project done in time for MHM. Just got too many irons in the fire….   Read more»

I’ve got some 4″ acrylic tube that I turned down to fit inside regular 4″ tubing. It has 2 shoulders on it. Will you be at the meeting? If so I’ll bring the small sample piece along.Edward

Thanks all for the resources. Ill try FC plastics first. Mcmaster Carr has a 3′ peice for around 47$ I think it was.

Fort Collins Plastics – http://www.fortcollinsplastics.com/

I’ve seen and used clear Lexan tubing up to 22″ in diameter and I believe they make larger. Most plastic distributors or McMaster Carr would have it or be able to get it. Don’t expect it to be cheap and…   Read more»

I think that platics place on south Santa Fe in denver has tube like that.

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

Yes, thinkin of building a 3-4x Estes Solar flare. One of the coolest new rockets estes has come out in years. Of course I have to finish my 4x Yellow jacket first

Check McMaster-Carr. Planning an upscale payloader?Ken

“reliable, repeatable method of lighting two motors simultaneously”Cesaroni Seriously, Mike. Make a cheap 38mm version in LOC paper tubing and use the 1 or 2-grain Cesaroni G or H motors to prove it out. I think you’ll be pleased. I…   Read more»

Mike.Don’t give up on this one….. It’s a great idea and we all would love to see this go. You only fail if you quit trying.Greg

Well, we tried it. As an engineer I’m very familiar with the old saying “Back to the drawing board”, and that’s where I ‘m going.This cradle rocket concept can only work if both motors ignite within milliseconds of each other…   Read more»

Mike, you continue to amaze us, my friend. Very nice work, on all power levels. NOW I can see what we were talking about. Don’t second guess, just light the beauties!

…Any way to check the stability on it? It turns out we have to be at wedding before 2 PM on Saturday the 3rd, here in Louisville, so making it up to Ault and back for a launch might be…   Read more»

…Any way to check the stability on it? Yes, I verified it with Rocksim 8 and later 9 (as a Beta tester). The HP version has long K700’s which move the weight forward. The model rocket version is marginal as…   Read more»

Maybe Mike’s a beta tester for Rocksim 9. It would allow all those additional pods with nosecones and motors.Ken

Also you might need little beefier moters than “B”s in the bottom. I think it looks like you have room for “D”s :)I’m just throwing out concepts, and I don’t want (or want any of the helpful NCR members) to…   Read more»

Of course, you could ignite your second stage motors with Parrots in those 18mm tubes, and get apogee deployment and some cool data as a bonus. Might be tough to pull together before this weekend, though. I’ll lend you one…   Read more»