DAllen
Well-Known Member
I work at an civil engineering firm and we make LOTS of prints. As a result there are tons of these 2" heavy cardboard tubes we sometimes save in a back room. I've been thinking that it would be cool to make a rocket out of the 3' long tube to hopefully garner some interest for rocketry in my office. I do realize it is a non-standard size tube. No big deal, I have a friend with a lathe who has offered to turn a nose cone for me and can make some centering rings.
The weird thing is when I put it into Rocksim, it seems to think it will break mach with an Eliis H275. I even put "matt" finish on all of the parts to make the results a little more conservative and closer to reality. I am pretty sure the weight of the tube is right. I guess I am a little surprised a 2" design like this would so easily go so fast. Am I missing something stupidly obvious here?
I don't plan on using any electronics. I'm just going to wait for a crystal-clear day with little wind and hopefully several people to help watch. Should be fun and could be a nice tribute to the late Mr. Ellis. And if I loose it...eh...who cares? It's going to be made out of spare parts.
-DAllen
View attachment I69 burner.rkt
The weird thing is when I put it into Rocksim, it seems to think it will break mach with an Eliis H275. I even put "matt" finish on all of the parts to make the results a little more conservative and closer to reality. I am pretty sure the weight of the tube is right. I guess I am a little surprised a 2" design like this would so easily go so fast. Am I missing something stupidly obvious here?
I don't plan on using any electronics. I'm just going to wait for a crystal-clear day with little wind and hopefully several people to help watch. Should be fun and could be a nice tribute to the late Mr. Ellis. And if I loose it...eh...who cares? It's going to be made out of spare parts.
-DAllen
View attachment I69 burner.rkt
