Student Launch Project Preliminary Design Review January 10, 2014

Team Structure

Conceptual 3D Design

Vehicle Dimensions

Vehicle Materials and Justification MaterialLocationJustification AluminumNose Cone Tip CubeSat Chassis Light Weight Electrically Conductive Phenolic TubingAirframeStrength to Weight Ratio PolycarbonateAirframe LiDAR Payload Bay CubeSat Transparency Strength to Weight Ratio Baltic Birch PlywoodFins Centering rings Bulkheads Strength to Weight Ratio FiberglassNose ConeCommercial Availability Carbon Fiber CoatingNose ConeElectrically Conductive

Static Stability Margin Stability Analysis From nose coneWith Booster SectionWithout Booster Section Center of Pressure ” ” Center of Gravity ” ” Static Stability Margin Rail Size/Length1.5” (1515) / 96”

Risk Assessment  Team safety briefings  Consult mentor and industry experts  Verify design with calculations and RockSim analysis  Identify potential hazards for construction and launch  Follow launch checklists and guidelines  NAR High Power Rocket Safety Code  Comply with federal, state, and local laws Plan for Vehicle Safety Verification

Baseline Motor Selection MotorBrand Engine CodeDiameterLengthBurn TimeImpulseThrust BoosterCesaroniJ240 RL54 mm in3.35 s Ns N MainCesaroniL61098mm in8.13s Ns N SustainerCesaroni L3150 Vmax98mm in1.57 s Ns N

Thrust-to-Weight Ratio and Rail Exit Ascent Analysis With Booster SectionWithout Booster Section Rail exit velocity (ft/s) Max velocity (ft/s) Max Mach number Max acceleration (ft/s 2 ) Peak altitude (ft) Thrust-to-Weight Ratio5.63:124.43:1

Launch Vehicle Verification  Verification of the design requirements will be completed for the structure, recovery, and propulsion subsystems  Analysis using computer simulations or calculations  Testing hardware components  Static testing before launch  Inventory of all structural equipment  Inspect fins for damage and stability  Inspect detachable components for secure attachment  Inspect rail buttons for secure attachment  Inspect all parallel boosters and main motors

Recovery System ParameterDrogueMainParallelBooster Diameter62”90”20”55” Deployment Altitude18500’1200’4445’5000’ Velocity at Deployment (f/s) Decent Rate (ft/s) Kinetic Energy (ft- lbs) Recovery Harness Material 1” Tubular Nylon Harness Length (ft)20’30’3’10’

Recovery System Electronics/Ejection Altimeter Make/Model 2x Missile Works mini RRC2 Redundancy Plan Each altimeter has an independent drogue/main charge. Redundant altimeter set to deploy 2 s after apogee and 2 s after 1200 ft. Pad Stay Time (Launch Configuration) > 4 hours Rocket Locators Mini Global GPS Tracker, Adafruit Ultimate GPS v3, USGlobalSat EM-406A Black Powder Mass Drogue Parachute g Black Powder Mass Main Parachute 7.56 g

Recovery System Verification ComponentVerification Method Attachment pointsExpected loads ParachutesSimulated masses Ejection chargesGround tested for adequate force Parallel Boosters Ejection MethodMotor Eject Booster Locators Mini Global GPS Tracker Booster Section Altimeter Make/Model Adept Rocketry DCS1 Deployment Controller Altimeter Pad Stay Time (Launch Configuration) > 4 hours Rocket Locators Mini Global GPS Tracker Black Powder Mass Booster Section Parachute g

LiDAR Hazard Detection System

 Rotating Mirrors  Processing Subsystem  Ranging Subsystem  Ground Station

Parallel Inline Motor System

 Parallel Stage  Inline Stage  Electronics

Tesseract

 Electrometer  CubeSat  Ground Station

Payload Verification  Complete all ground testing pertinent to payload functionality.  Set all control data.  Ensure proper wiring for all electrical components before launch.  Inspect all payload bays and detachment points for structural integrity prior to launch.

Questions?