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Harvard-Westlake Rocketry Club. SLI 2008-2009 FRR. Rocket Stability. Thrust-to-Weight Motor Selection. Thrust: 664.83 N Weight: 82.52 N Ratio:8.06 8.056 is well above the safe limit of 5. Rail Exit Velocity. According to Rocksim, the Rail Exit Velocity is 42.5174 ft/s - PowerPoint PPT Presentation
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Harvard-WestlakeHarvard-WestlakeRocketry ClubRocketry Club
SLI 2008-2009FRR
Rocket StabilityRocket Stability
Thrust-to-Weight Motor Thrust-to-Weight Motor SelectionSelection
Thrust: 664.83 N Weight: 82.52 N Ratio: 8.06
8.056 is well above the safe limit of 5.
Rail Exit VelocityRail Exit Velocity
According to Rocksim, the Rail Exit Velocity is 42.5174 ft/s
42.5 ft/s is above the recommended 30-35 feet per second exit speed.
Parachute SizeParachute Size
Drogue: 24” Descent Rate: ~60 feet per second,
depending on the final payload
mass Main: 60”
Descent Rate: ~25 feet per second, depending
on the final payload mass
Test PlansTest Plans
Scale Model Testing Complete!
Scientific Payload Testing
7
Test FlightTest Flight
QuickTime™ and a decompressor
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Avionics and PayloadAvionics and Payload
Avionics testing will be performed with Christmas Tree Lightbulbs at school
The payload will be stored in the electronics bay, simplifying set-up procedures
