[AR] Re: Hybrid regression
- From: "Stephen Burns" <stephen.burns@xxxxxxxxxxxx>
- To: <arocket@xxxxxxxxxxxxx>
- Date: Thu, 18 Sep 2014 20:54:47 +0800
This Utube video
https://www.youtube.com/watch?v=TLPWqCMb7DE
shows an gaseous oxygen/acrylic hybrid. You can see the regression as it
happens. The video also demonstrates the throttle response and the capacity to
turn off.
Here is another https://www.youtube.com/watch?v=DQ2hOH23-zU restartable no
less, although probably not after an extended cool down.
Cheers
Burnsie
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On
Behalf Of Edward Wranosky
Sent: Monday, September 15, 2014 11:06 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Hybrid regression
A long time ago I flew a wax/pe/lampblack hybrid and there were black drips on
the lake bed beneath where it landed. It was dripping out the excess fuel
during coast and recovery. I've found if you use a flourinated binder with a
finely divided metal you can get excellent performance out of a hybrid :)
Edward
On Mon, Sep 15, 2014 at 8:58 AM, Steen Eiler Jørgensen <steen@xxxxxxxxxxx>
wrote:
Den 15-09-2014 16:53, Keith Henson skrev:
> On the other hand, transparent to IR is not a good idea. I remember
> vaguely a story about someone who tried a transparent fuel grain in a
> hybrid. Dust in the fuel grain absorbed enough heat to blow chunks of
> fuel out. KH
I remember a case where a transparent hybrid fuel grain transmitted
radiation to the inner wall of the combustion chamber, where it was
absorbed, resulting in the heating of the chamber and subsequent melting
of the grain from the outside.
/steen
--
Chance favors the prepared mind.
-Louis Pasteur
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