D4 Championship PBG

[Atwood, Mark]

Actually..in the situation I was refering too (both by the way occured on our first formal contest outing of evening aeronautics, and both by nightime newbies) there was some significant debate, trying to analyse the light path in order to determine WHICH glow stick remained on the craft.  

It was generally agreed that a single wingtip light would provide an equally disasterous, albeit more aesthetically spectactular finale.

As a point of education..we've found that automotive Brake Cleaner, or PowerMaster KleenMaster (They sponsor the contest..have to give a plug!) both do an excellent job of helping the tape adhere to monokote or the like.


-----Original Message-----
From:	Gray E Fowler [mailto:gfowler at raytheon.com]
Sent:	Fri 8/22/2003 2:12 PM
To:	discussion at nsrca.org
Cc:	
Subject:	RE: D4 Championship PBG

Wow! see how good this already is.  So on the single point of light...if 
taped to the fuse...does not indicate rolling very well..right? And so you 
(theoretically) could roll upside down and not know it. I reccommend "A 
Thousand Points Of Light" to solve this problem.



Gray Fowler
Principal Chemical Engineer
Composites Engineering




"Atwood, Mark" <atwoodm at paragon-inc.com>
Sent by: discussion-request at nsrca.org
08/22/2003 12:56 PM
Please respond to discussion

 
        To:     <discussion at nsrca.org>
        cc: 
        Subject:        RE: D4 Championship PBG


Anything in the name of science.

We've already made two significant scientific discovers as a result of the 
annual night flights.

#1  Glow sticks DO have mass.  Therefore, placing 9 of them all aft of 
your original CG will MOVE the CG to a less desirable location.  Usually 
catastophically.

#2  Tape, not unlike water, does not mix well with oil.  Taping glowsticks 
onto an uncleaned airframe will result in poor adherence.

     #2.1 Corollary to 2.0   The difficulty in flying a plane at night is 
directly proportional to the number of glow sticks that have fallen off in 
flight.  It's surprising just how erratic the track of a single light 
point can be as it finds it's way to the earth.

Oh..and in case anyone is wondering...if a plane crashes in the 
woods...and nobody sees it, it still crashed.  Just look for the glow....

Mark
-Assembling mass bottle rocket launchers as I type....




-----Original Message-----
From:            Gray E Fowler [mailto:gfowler at raytheon.com]
Sent:            Fri 8/22/2003 1:38 PM
To:              discussion at nsrca.org
Cc: 
Subject:                 RE: D4 Championship PBG

Ok Ok....Scott...if you can find paint balls that glow in the dark...then 
by all means :)

Oh...and make sure you bring a night fly plane that WE can shoot at.


Excellent attitude. Setting an example for the rest of us to follow.



Gray Fowler
Principal Chemical Engineer
Composites Engineering







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