View Single Post
  #4  
Old 10-24-2008, 07:55 PM
Mark II's Avatar
Mark II Mark II is offline
Forest Sprite
 
Join Date: Dec 2006
Location: Back Up in the Woods
Posts: 3,657
Default

I use my standard low-power launcher to launch my Tumbleweed on Micro power. I stand it off at least half-way up my 36" x 1/8" rod, though, and I give the rod a quick sanding with extra-fine sandpaper to make sure that it is really clean and smooth. (It is important to do this in any case, but it makes a particularly big difference in this case.)

The Tumbleweed starts off fast but slows down quickly, coasting to a dead stop in mid-air, about 30 feet up, after a perfectly vertical flight. It just kind of hangs there for a couple of heartbeats, as if to take in the view, and then it drops, firing the ejection charge about halfway down. It really helps if you launch the rocket in dead still air, but launching mine in a very slight breeze a couple of times didn't hurt its flights.

Be aware that the Tumbleweed might hit the blast deflector on the pad on the way down. Also be careful that you don't hurt yourself as you fall to the ground, laughing your klister off.

Mark \\.
Attached Thumbnails
Click image for larger version

Name:  DSCF0129-half-size.JPG
Views: 103
Size:  180.2 KB  
__________________
Mark S. Kulka NAR #86134 L1,_ASTRE #471_Adirondack Mountains, NY
Opinions Unfettered by Logic • Advice Unsullied by Erudition • Rocketry Without Pity
+09281962-TAK-08272007+
SAM # 0011
Reply With Quote