I took inspiration from the upcoming Jolly Logic Chute Release, and have been working on a little chute release project of my own. It will depend on motor eject, but release the chute for full inflation at a lower altitude. The while thing fits in BT-60. It might make BT55 if I used a lower profile hot wire connection

The pictures show:
An Eggtimer Quark - altimeter with two pyro channels and jumper set altitudes.
The Quark nestled into a BT50 nose cone base.
The battery and 'sled' - a 24mm motor tube.
The battery installed and connected.
The tender with its tethered rubberband - 10# fishing line making the cuttable link - just across the band, sitting on the table. Nichrome wrapped around the line.
Then the whole package, chute restrained. Both chute and tender connect to recovery harness.
Lastly, an Eggfinder TX for GPS tracking fun.

Bench testing complete. Getting ready for flight.

Attached Thumbnails

             

__________________
Charles McGonegal
Ciderwright
AEppelTreow Winery & Distillery
Ad Astra Tabernamque!