Recovery with only a servo motor?

[ABCALEB]

I make my own engines and they work pretty well, the issue is black powder. It's hard to get here and really expensive, I was thinking I could use a SG90 servo motor to release the nose cone and parachute, has anyone done something like this?

 

[rstaff3]

Check out AirCommand and US water rockets.

 

[crossfire]

Check out MARS chute recovery systems. You may get some ideas from their drone recovery system.

 

[tab28682]

I am doing some sketching on an electromechanical system that forces the nose cone or payload bay away from the rest of the airframe. Does not use springs or a servo for the separation. It is more than a little Rube Goldberg, but I think it can be made to work nicely.

Tests will be via radio control, but will also work from a timer of altimeter. Dual deploy of the main at low altitude will be via RC.

 

[watermelonman]

I am having a tough time getting away from springs and servos, and definitely interested in what you come up with.

 

[aerostadt]

There might be some ideas here in this Apogee newsletter.

https://www.apogeerockets.com/education/downloads/Newsletter401.pdf