C. Recovery System
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The recovery system attachments
will use Rod Eyebolts (solid eye with a threaded
rod) and 1500lb.quick links. The bulkheads are all 3/8" aircraft" birch
plywood .with 1/8" aluminum plate sandwiched to the bulkheads for added
strength. The bridles are 1" tubular Nylon. To avoid zippering, the aft
section of the rocket uses an anti-zipper design
(coupler and bulkhead/baffle protrude forward).
Rocketman Pro-XP or Sky Angle Cert 3 chutes are to be used in a dual-deployment configuration. The deployment system will use black powder charges to pressurize the airframe to 15 psi and deploy the parachute as is typical for high-power rockets. Drogue recovery uses a Rocketman or Sky Angle Cert 3 'chute to achieve 50 ft/s descent and main recovery uses one Rocketman or Sky Angle Cert 3 'chute to achieve 15 ft/s descent. The drogue chute ejects from the separation above the booster section and the lower payload section of the rocket (the charges are behind the parachute) plus the parachute is attached along the bridle, not directly to the airframe. . The main parachute ejects from
the front payload section of the rocket (the charges are behind the parachute)
plus the parachute is again attached along the bridle, not directly to
the airframe.
Safety: A separation or failure
to deploy the recovery system would be very dangerous on a rocket this
large and heavy. Mounting points for the recovery system use rod eyebolts,
aluminum plates bonded to the bulkheads and bonded fiberglass joints are
reinforced with steel all-thread rods.
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