1. Preliminary Design Review Presentation
California State University, Long Beach
November 8th, 2016

2. Main and Propulsion Bay
Vehicle dimensions
Section 
Length (in) 
Nose cone & Payload Bay 
30 
CO2 Ejection System  8 
Drogue Bay 
10 
Avionics Bay 
12 
Main and Propulsion Bay 
48 

3. Vehicle materials
ABS
Bluetube
Aluminum 

4. Vehicle Justifications
ABS vs. PLA
Bluetube, carbon fiber, or fiberglass

5. Static Stability Margins
CG – in
CP – 79.50

6. Preliminary Motor Selection
Aerotech L1170FJ-P
Total Impulse (lbf.s) 
947 
Avg. Thrust (lbf) 
271 
Max Thrust (lbf) 
331 
Burn time (s) 
3.49 
Launch Mass (oz) 
176 
Empty Mass (oz) 
77.2 

7. Thrust to Weight and Rail exit velocity
T/W = 9
Vexit = 76.1 ft/s

8. Maximum Altitude (feet)
Avionics Subsystem
Dimensions
Maximum Altitude (feet)
Weight
(grams)
Perfectflite StratoLoggerCF
2″ × 0.84″ × 0.5″
100,000
10.8
Missleworks RRC2+
2.28″ × 0.925″ × 0.5″
40,000 10
Featherweight Raven 3
1.8″ × 0.8″ × 0.56″ 7
StratoLoggerCF Altimeter
Data: altitude, temperature, battery voltage
Reliable and low cost
Team member experience

9. Avionics Subsystem BigRedBee BRR900 GPS tracker and logger
LCD receiver displays GPS coordinates
No HAM license required
Versatile and practical

10. Avionics Bay 6” diameter coupler U-bolts (1,075 lb test)
Rotary switch as arming switch
Primary and Backup altimeters
BRB900 GPS tracker

11. Parachute Sizing Drogue Parachute: 24” Classic Elliptical
Main Parachute: 72” Iris Ultra
Drogue Descent Velocity: ~80 fps
Main Descent Velocity: ~22 fps

12. Drift Calculations Case 1
Launch vehicle is descending under main with payload still attached
Drogue deployment: 5,280 feet
Main deployment: 500 feet
Maximum drift: ~2,420 feet
With PAYLOAD Attached
Wind Speed (mph)
Wind Speed (fps)
Drogue Drift (ft)
Main Drift (ft)
TOTAL DRIFT (ft)
0.00 5
7.33
438.17
166.67
604.83 10
14.67
876.33
333.33 15
22.00
500.00 20
29.33
666.67

13. Drift Calculations Case 2
Main chute deploys at 500 feet, payload detaches at 400 feet
Drogue deployment: 5,280 feet
Main deployment: 500 feet
Payload deployment: 400 feet
Maximum drift: ~2,445 feet
With PAYLOAD Detached
Wind Speed (mph)
Wind Speed (fps)
Drogue Drift (ft)
Main Drift when dropping from 500ft to 400ft (ft)
Main Drift when dropping from 400ft to GROUND (ft)
TOTAL DRIFT (ft)
0.00 5
7.33
438.17
33.33
139.68
611.18 10
14.67
876.33
66.67
279.37 15
22.00
100.00
419.05 20
29.33
133.33
558.73

14. Mission Sequence

15. Preliminary Payload Design
Autonomous Powered Paraglider
3D Printed Nose Cone
Mechatronic Nose Cone Opening System
Pi Camera

16. Autonomous Powered Paraglider
DC Motor and Propeller
Servo and flybar
Pixhawk flight controller

17. Hinge and linkage mount
3D Printed Nose Cone
3 Sections
Elliptical shape
Hinge and linkage mount

18. Mechatronic System
Stepper motor and nut
Linkages and hinge

19. Pi Camera
FOV
Spatial Resolution of Targets
OpenCV

20. Requirement Compliance Plan

21. Safety Safety Manual: Safety Officer: Risk Assessment Matrix:
Rules & Regulations
Lab & Machine Shop
Educational Engagement Safety
Safety Contract signed by all team members
PPE
MSDS
Launch Safety
Safety Officer:
Ensure compliance of all rules and regulations
Frequent and anonymous safety Inspections
Update Safety Manual
Update Risk Assessment
Risk Assessment Matrix: 
Machine Shop / Lab Risks
Pre-launch / Launch Risks
Recovery Risks
Environmental Hazard Risks
Structure and Propulsion Risks
Payload Risks
Payload Deployment Risks
Project Risks