Concluding Remarks
nExcellent Structural Integrity
nPerformance Rocketry Airframe, Fincan, Nosecone, Coupler
nHandmade Centering Rings and Bulkheads from ¾” Plywood
nCRs attached to Motor tube with 30-min epoxy, w/ generous fillets
nCRs and Bulkheads attached inside FG Airframe and Coupler with 30-min epoxy and 3 #8-32 screws (each).
nFG Fincan attached to FG Airframe w/ 30-min epoxy and six #8-32 screws.
nMotor retained by 3/8” threaded rod in forward closure
nAmple Stability Margin (at least 3 calibers in launch configuration)
nRobust Recovery System
nFully Redundant Electronics
nEach of two altimeters has dedicated key switch, battery pack, drogue charge, main charge
nBoth altimeters are PF MAWDs, which has high reliability
nBoth altimeters have been individually tested in homemade altitude chamber
nEjection Charges have been fully tested and provide excellent ejection force and approximately 10’ of separation during ground test and parachutes fully ejected from airframe.
nB2Rocketry Cert-3 Drogue Chute
nRocketman R14C Main Chute
nTubular Kevlar Harnesses (60’ for Drogue, 30’ for Main)
n101 fps Drogue Descent Velocity is acceptable
n20 fps Landing Velocity is acceptable for Manchester Field
nRocketHunter xmitter attached to Drogue Harness
nGood Motor for Hey Bubba
n9.3 Thrust/Weight
n8600 feet, predicted altitude
nBiggest Concern for this flight?
nStaying out of the trees!