Zaratan
IREC 2026 30K SRAD
Embedded Files
Patch: Sasha Matheson
GOALS:
GOALS:
30,000 FT APOGEE
SRAD AIRFRAME AND MOTOR
2 KG CNC PAYLOAD
SPECS:
SPECS:
MACH 1.8
120 LBS
THRUST TO WEIGHT ~10
6" DIAMETER, 12' LENGTH
So Close We Could Taste It
So Close We Could Taste It
After last year's motor failure, our propulsion system performed exactly as intended. The motor completed a nominal burn and the vehicle successfully passed through Max Q.
After last year's motor failure, our propulsion system performed exactly as intended. The motor completed a nominal burn and the vehicle successfully passed through Max Q.
Unfortunately, a recovery failure occurred at burnout, resulting in drag separation at approximately 20,000 feet.
Unfortunately, a recovery failure occurred at burnout, resulting in drag separation at approximately 20,000 feet.
Analysis
Analysis
The failure was caused by improperly sized shear pins and shear pin holes in the nosecone and main parachute tube.
The failure was caused by improperly sized shear pins and shear pin holes in the nosecone and main parachute tube.
Several shear pins failed during supersonic flight. At burnout, the remaining pins could not withstand the inertial loads on the nosecone, leading to premature separation.
Several shear pins failed during supersonic flight. At burnout, the remaining pins could not withstand the inertial loads on the nosecone, leading to premature separation.
The separation sheared the nosecone in half at the coupler and generated loads large enough for the flight computers to detect a false apogee event. This triggered drogue deployment, which subsequently failed.
The separation sheared the nosecone in half at the coupler and generated loads large enough for the flight computers to detect a false apogee event. This triggered drogue deployment, which subsequently failed.
With both recovery systems gone, the vehicle entered a tumble descent. The shock cord remained attached to all major components, preventing a complete breakup.
With both recovery systems gone, the vehicle entered a tumble descent. The shock cord remained attached to all major components, preventing a complete breakup.
Upon impact, an airbrake support arm punctured a LiPo battery, causing a lithium fire.
Upon impact, an airbrake support arm punctured a LiPo battery, causing a lithium fire.
Livery: Sasha Matheson
FEATURES:
FEATURES:
AEROSTRUCTURES:
AEROSTRUCTURES:
FILAMENT WOUND TUBES AND COUPLERS
0.5" CARBON FIBER FINS
CARBON FIBER FIN CAN
CERT 3/XXL MAIN, 30" SRAD DROGUE
AIRBRAKE:
AIRBRAKE:
TRIM APOGEE TO 30,000 FT
IMPROVED RELIABILITY
HARDWARE IN THE LOOP SIMULATIONS
DEPLOYMENT ON SEASON'S FIRST FLIGHT!
PAYLOAD:
PAYLOAD:
IN-FLIGHT CNC
INVESTIGATE EFFECT OF G-FORCES ON CHIPS
BOOST, COAST, WEIGHTLESS APOGEE, AND DESCENT
PROPULSION:
PROPULSION:
O-CLASS MOTOR
IMPULSE: 35,543 Ns
BURN TIME: 6.84 s
CHEMLOK GRAIN TO LINER BONDING AGENT
AVIONICS:
AVIONICS:
LIVE TELEMETRY
LIVE VIDEO
ASTRA CUSTOM FLIGHT SOFTWARE
GROUND STATION WITH POINTING ANTENNAS
TEST FLIGHTS
TEST FLIGHTS
GALLERY
GALLERY
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