All rocket kits are designed with a price point in mind. For most manufacturers that means elastic cord harness, cotton string and bin-liner parachute material. You can be almost certain to get one perfect flight out of the standard recovery setup. With care and luck you can get two, three or more. With a lot of care and luck!
Excuse the pun but the down side of a recovery problem often means the loss of the rocket. Gravity is a cruel mistress.
We just hate to see kids cry (or grown ups either!) but that's exactly what happens when the rocket that they slaved hours over assembling and painting falls out of the sky because:
We want all Rocket Shop customers to be happy customers so we have created four Recovery Upgrade Kits to minimise the chances of a crashed rocket due to recovery trauma. We can't help much with lawn darts (where the nose cone didn't come off because it was too tight or the motor ejected), but a Recovery Upgrade can reduce the chances of the other three common recovery mishaps: core sample, recovery by smoking wad and bungie bruising.
A core sample happens when the nose cone and chute sail off over the horizon and the body returns open end first into the flying field. Recovery by smoking wad is where the extremely flamable plastic chute was torched by a vigorous ejection charge unimpeded by sufficient wadding. A bungie bruise results from an elastic shock cord recoiling and smacking the nose cone into the body tube, damaging the finish, the BT, the nose cone or all three.
The reduce the chance of an unhappy ending we propose that you upgrade your recovery system.
These kits are quick to fit and will go a long way towards preventing the most frequent causes of recovery mishaps. Basically, you use the Estes technique of a plaster that traps the end of the shock cord and provides a large bonding surface. Only for the upgrades we advise using epoxy glue for strength. A complete pictorial for the process will be inserted here soon. Promise!
Here are some more tips for a successful flight and recovery every time:
Whenever you modify your rockets, check that they are still safe and stable with SpaceCAD.
(c) Hesperis Technology, 2004
Tech Tip #3 - Build or Buy - Deployment Pistons