Tuesday, February 12, 2008

Restartable Hybrid Movie

Here is a movie of the motor that I have been working on recently. It is a restartable, long burn N2O/HTPB hybrid. I've included some thrust and chamber pressure data as well - to me the data is more interesting than the movies sometimes.

4 comments:

K2unit said...

Very Cool! Not many have done that before.
How did you re-start the motor, just the hot fuel grain or a separate igniter?

K2

Check out:
http://www.hybrids.com/video/HY-II_restart.mpg

Damien said...

Very nice indeed ! I'd be happy to know how you light and relight your motor too.

Rocket Dude said...

I did discover in an earlier test that you can use the hot fuel grain to re-light if you don't wait too long. It seems that it doesn't work after just a few seconds. I'm using a separate spark-based igniter setup. I'll do a post about it soon.

MHM said...

So by "Spark-based" igniter setup you mean you are using an automotive spark plug to first decompose the N2O, and then ignite the fuel grain? Apologies if you consider this a too specific question to your design; but I'm also in the process of designing a restartable hybrid at my University and would love to know any lessons learned you've come across.