Jump to content
APC Forum

Rocket competition submission


al93535

Recommended Posts

Here is my first 1 lb rocket with a header. It has a can and a ball shell atop the cored BP rocket.

 

The can hold 6 Ti whistles which end with a flash report. The ball has ruby red and win 20 glitter stars.

 

Prefiring picture:

 

http://img.photobucket.com/albums/v242/al93535/1lbrocket.jpg

 

Video:

 

http://www.apcforum.net/files/1lbdoublehead.wmv

 

The motor weighed 84 grams, and the head 240. With stick and everything the total weight is 336 grams.

Link to comment
Share on other sites

Is this hammer presed or did you used press for this rocket?

 

by the way, the rocket is awsome!! I wish I could see it in person.

Link to comment
Share on other sites

  • 1 month later...
  • 2 weeks later...

That was beautiful! Very symetrical break.

How did you get the whistlers to spin? Were they like stingers?

Link to comment
Share on other sites

Thanks!

 

No, the whistles were open ended. Just a plug, with whistle (mixed with ti) pressed into the tube. The whistle is very propulsive, and the formula I use is more for whistle rockets. So it work's out well for inserts.

Link to comment
Share on other sites

Here is the post from skylighter... I add 10% 20-200 mesh Ti before I press the whistles.

 

Its the whistle rocket fuel in 8 hours article.

whistle.htm

Link to comment
Share on other sites

  • 3 months later...
Yes, the Al is consumed in the rocket engine itself. The Ti is neccesary for the tail, which is unfortunate. Perhaps a very large mesh Al would work. Unfortunatly most large mesh Al is flake. If you could find some 20 mesh granular Al, you may be able to pull it off. Maybe firefly.
Link to comment
Share on other sites

Temperature. The melting point of aluminum is relatively low. The burning of the fuel causes the aluminum to melt and vaporise and be consumed in the rocket itself or very soon after being expelled. Titanium on the other hand has a relatively high melting point, so it is consumed less in the motor itself.
Link to comment
Share on other sites

That was a great rocket el. I tired making a rocket with a 6 whistle to report head. Unfortunately I messed up the delay and made a giant lawn dart.
Link to comment
Share on other sites

Great header Al. Perfect break
Link to comment
Share on other sites

×
×
  • Create New...