AstroAbaqus
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- Joined
- Jun 14, 2021
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Dear all here in attachment you will find the recovery system I designed based on OR and information on TFR and other sources. My first scratch build HPR, named Set, will be tall 2.25 meter (88 inch) with a 98 mm (4 inch) diameter with an estimated weight of 3.3 kg (at complete burn out. I am thinking to start immediately with dual deploy but I can change to single deploy relatively fast. I took a nylon shock cord rated 1000 lbf in red, most of the ends are protected by a thick kevlar sleeve and the shock cord is secured to the u-bolt via 6 mm quick links. The shock cord had a total length of 10 meter divided in 7 meter for the drogue and 3 for the parachute. At 3/4 of both the drogue and main shock cords a butterfly knot is done. To this I decided to attach a 1.8 meter of paracord of 6mm rated up to 900 lbf. At the end of the paracord the drogue and the main are attached using a swivel to ensure a free rotation. The drogue is a 24 inch parachute and the main is a 48 inch parachute.
Any advice is more than welcome
Any advice is more than welcome