Tag
#recovery
6 articles
Field Notes
FIELD NOTE10 min readHow to Size Black Powder Ejection Charges (and Prove Them on the Ground)
The D²×L and volume formulas for FFFFg ejection charges, worked examples for 3- and 4-inch bays, and a ground-test procedure.
Field Notes
FIELD NOTE8 min readFinding a Lost High-Power Rocket: GPS, Beacons, and Search Technique
How to keep an L1 or L2 rocket findable: dual-deploy drift, GPS vs radio beacons, last-known coordinates, and a search pattern.
Field Notes
FIELD NOTE7 min readBuilding an L2 Airframe That Survives J–L Motors
The build side of L2: 38 mm vs 54 mm mounts, rail buttons, kevlar and zipper control, coupler length, and recovery attachments.
recovery
9 min readRocket Recovery Hardware Guide: Parachutes, Shock Cords & More
Everything you need for reliable rocket recovery — parachute sizing, shock cord materials, Nomex protectors, quick links, and shear pins.
Field Notes
FIELD NOTE8 min readShear Pins, Vent Holes, and Why Dual Deploy Still Fails
How many nylon pins a 3- or 4-inch coupler actually needs, why av-bay vents are not optional, and the failure modes of dual deploy.
recovery
14 min readHow to Set Up Dual Deployment for Your First High-Power Flight
A step-by-step guide to configuring drogue-at-apogee, main-at-altitude recovery for L1 and L2 high-power certification flights.