[RocketsNW] Fynocyl Test Video posted

[Fred Azinger]

Yea, Gabe's dog has seen it all....
Looks are somewhat deceiving -- the tripod is low to the ground and zoomed
in -- the dog isn't that close to the motor.....but he does seem to care
less about the burn....



-----Original Message-----
From: Steve Tarr [mailto:stevet19759 at comcast.net] 
Sent: Monday, June 15, 2009 11:09 PM
To: Fred Azinger
Cc: rockets at rocketsnw.com
Subject: Re: [RocketsNW] Fynocyl Test Video posted

I like the mechanism for measuring the burn time in tail wags.  Cool use 
of bio-technology!
  -ST


Fred Azinger wrote:
> I've been working on my slow burn propellant -- starting with Swamp Gas
and moving on....this is my FSGv5 which now only shares R45, DOA, Aluminum,
Chrome Oxide and 200um AP  (only) as common ingredients with it roots.....
> I like Swamp gas, but needed to convert to something that used only 200um
AP as I'm out of 400um...
>  
> One issue with these slow-burn propellants is try to avoid long tailing
burn profiles....
> The Fynocyl core helps this by providing a near square burn
profile...great for a booster motor....I can see why the military likes
it...and it makes a nice core profile to "clean up" the ragged edges of a
slow burn propellant
>  
> Ed at Trucore made the mandrel for me to my specifications....5/8" core,
six fins that are 0.125" wide and 0.3" long...
> I have a PR Gizmo in the works with a 98mm hole -- I have a 14" long 98mm
case that touches the NC when installed in the Gizmo.
> This 9" grain is all that can fit.
> In order to maximize the altitude of the Gizmo, it needs to go slow.....I
think I've succeeded with this motor.
> It has plenty of power to get it off the pad -- plenty long burn time of
real substantive thrust!
>  
> Now I need to finish the rocket ;-)
>  
>  
> See the video at:
http://www.northwestrocketry.com/uploads/FynTestBurmVideo.wmv
http://www.northwestrocketry.com/uploads/FynTestBurmVideo.wmv
>  
> See a picture of the grain at:
http://www.northwestrocketry.com/uploads/IMG_1463-small.jpg
http://www.northwestrocketry.com/uploads/IMG_1463-small.jpg
>  
> See the static photo at:
http://www.northwestrocketry.com/uploads/IMG_1470-small.jpg
http://www.northwestrocketry.com/uploads/IMG_1470-small.jpg
>  
>  
> Enjoy -- see ya in the sage soon!!!
> FredA
>  
>  
>  
> 
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Rockets mailing list
> Rockets at rocketsnw.com
> http://mx1.blastzone.com/mailman/listinfo/rockets
>