Project 'Fire mouse over the Thames'

[rockets-in-brighton]

Another dethermaliser device used for model gliders has a short length of soft latex tubing, 3mm-6mm internal diameter, length cut according to the delay required, plus a piece of wire from a paper clip bent into a zig-zag shape that just fits inside the tubing. Attach an elastic band to the paper clip to drag it out of the tubing against the resistance made by the zig-zag. Adjust ziig-zag, tubing length, elastic band strength to get the delay required. Rig to release your glider wings when it pops out.

Nice idea, but it looks like it wouldn't be that constant. How do you make sure that it releases the same time each launch?

In my own experiments I found it gave a very consistent delay. I expect you would have to test before each launch that the elastic band has not become over-stretched or has perished, but it was certainly accurate enough for this purpose.

[Rusty]

And how should I create a wing mechanism that deploys from this timer?
Also don't the other questions I asked :P

[U.S. Water Rockets1]

And how should I create a wing mechanism that deploys from this timer?
Also don't the other questions I asked :P

The two wings could be connected with a pivot point like the blades of a scissors. You could put a rubber band on the short side to pull the wings open. Then you gold them closed under tension and put a clip or pin on the tips holding them from opening up. A Tomy timer could be used to pull the clip off after the appropriate delay.

It could be made to work.

[Andrewlee]

I had that same idea....just havent got a working model yet

[Rusty]

The two wings could be connected with a pivot point like the blades of a scissors. You could put a rubber band on the short side to pull the wings open. Then you gold them closed under tension and put a clip or pin on the tips holding them from opening up. A Tomy timer could be used to pull the clip off after the appropriate delay.

It could be made to work.

Doesn't using a tomy timer defeat the point of this idea ie to not use a tomy timer? :P