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Newark Tubes in Denver makes some very large tubes. There are definitely better brands out there than Sono that keep better tolerances. Or almost as cheap you can go to Yazoo Mills and they’ll make them to order.EdwardNewark does not…   Read more»

Sonotube in 6’6″ diameter….Sounds like we have a plan for the full scale Mercury.Art, you still want to ride on top?

Newark Tubes in Denver makes some very large tubes. There are definitely better brands out there than Sono that keep better tolerances. Or almost as cheap you can go to Yazoo Mills and they’ll make them to order.Edward

Tom,You’ve chosen the one size that is better to buy than to have machined. 54mm tube is 2.125 x .095″ wall. It used to be a standard size but is not found much outside of 5000’+ mill runs. This is…   Read more»

Ed, Warren, Thanks for the reply. Edward P.M. sent.I am looking at making a set of 54mm cases at first as this should cover all of my needs for quite a while. 75mm would be nice in the future. I…   Read more»

Easiest case design to work with is the Kosdon and AMW style snap ring case. Also, cases must be designed to fail axially, meaning that forward or rear closures should blow out in the event of overpressure, never the case….   Read more»

I could turn cases up to 98mm and ~30″ in length for you. I’ll need a bit of lead time though.Edward

Unfortunately not. I do have some Hawk Mtn. 75mm FG tubing, but it is part of a kit that I am planning on building sometime this year. Perhaps it you have the right offer, I’d part with it.

Cool. Any chance you have a 75mm FG motor mount too?

I have it in hand Ed. It’s yours… retail price whatever that is. I have no idea what I paid for shipping, but I bought too much.

Nicely said, Bear. We are about the same age, give or take. You want a low NAR number in the club, check out Mike Konshak; he’s in the late 800’s. He was there right at the start of NAR.

Dave, I am encouraged. I suppose that if others would be involved and would actively participate; and we could settle on a locale like Golden, or Broomfield, Longmont, or elsewhere, but choose one where we could have the greatest amount…   Read more»

Bear,Great ideas! It would be great fun to do what you are saying.yep, it is really a P.I.A. to move rocketry forward in a public school setting. However, my Waldorf teacher training encourages that a teacher “teach his passions”. That’s…   Read more»

If it is so difficult to get it done in school, why not see if we could do it through a different avenue such as through Hobby Lobby. They are very community minded. Maybe we could get them to allow…   Read more»

Hey Bear!I teach at an K-8 charter school above Golden in Coal Creek Canyon. We are right now today (I am in snack time writing this) starting our semester of rocket building! This is our third year. There are so…   Read more»

When I was in high school back in the late 60’s, I would go to talk with principals at elementary schools and visit with them about me coming in for two days some week that we all agree on and…   Read more»

We have deflectors in the trailer for many of the pads (or at least we used to). One of our members (actually several) own substantial machine shops and could fab. new deflectors from scrap material. The shop I worked at…   Read more»

How about a deflector plate mounted on the rod or rail, in the shape of a yield sign. Drill a hole in it and mount it on the rod or rail. Have the metal bent down at a 45 degree…   Read more»

We have deflectors in the trailer for many of the pads (or at least we used to). One of our members (actually several) own substantial machine shops and could fab. new deflectors from scrap material. The shop I worked at…   Read more»

I know, Im really bummed out about it, but school is taking up all my spare time. Ill still try to get my vipers finished and get to most of the launches. I figure if I cant enter I can…   Read more»