TWO-finned rockets and stability

TWO-finned rockets and stability

Post by al.. » Tue, 06 Sep 1994 10:23:02




Quote:

> Has any work been done on rockets with only two fins?
> I built an experimental bird with two fins in a V-configuration.
> Stwing testing was, um, inconclusive at best, but I took
> a chance and launched it today.  It flew straight up!
> Hey, I was impressed.

The NAR's Esteemed president just flew a 2-finned rocket
in Scale at NARAM.  This just had two opposite fins in one
plane.  Flew kinda wishy-washy, but he took second in
team division with it.
If he had flown with 4 fins and both smok generators had worked,
he might have taken first    :-(
Peter "I prefer 8 fins" Alway
 
 
 

TWO-finned rockets and stability

Post by Mark Bundi » Wed, 07 Sep 1994 21:52:31



Quote:

> The NAR's Esteemed president just flew a 2-finned rocket
> in Scale at NARAM.  This just had two opposite fins in one
> plane.  Flew kinda wishy-washy, but he took second in
> team division with it.

Wait a minute.  The farings counted as fins (sort of) and were included in my  
CP calculations showing it would be stable.  That's four fins in my book,  
just that there were two different sizes of them....... ("Buy Bunny's 'New  
Rocket Math' available soon.......")

Quote:
> If he had flown with 4 fins and both smok generators had worked,
> he might have taken first    :-(

Jeeez, Pete!  The Prez flies the d*&^ event for the first time in ump***  
years and they complain that he doesn't win.  Whadda ya got to do to keep 'em  
happy around here, he wonders?  Maybe they'll be kinder if I try out for the  
US Scale Team next year with Bob Biedron ;-)

====================================================================
Mark B. Bundick         "Running a NARAM will never be harder
NAR President           than building a nice scale model"