1. Vehicle Sizing PDR AAE451: Balsa to the Wall
Ashley Brawner Matt Negilski
Neelam Datta Mike Palumbo
Xing Huang Chris Selby
Jesse Jones Tara Trafton

2. Presentation Overview
Preliminary weight estimate
Wing loading and power loading
Summary of sizing

3. Preliminary Weight Estimate
Fuel fraction estimation method
Analyze energy requirements for each mission phase to obtain phase battery weights
Normalize sum of phase battery weights with unknown aircraft weight
Find intersection of historical data with line created from estimation

4. Preliminary Weight Estimate

5. Preliminary Weight Estimate
Assumed Parameters
L/D_max 14
L/D_loiter
12.124
V_loiter
50 [ft/sec]
Loiter time
8 min
Turn time
4 min
SLUF time
Aircraft weight: 5.42 lbs
Battery weight: lbs

6. Wing and Power Loading

7. Wing and Power Loading Design point: Wing loading: 1.26 lbf/ft^2
Power loading: 3.0 lbf/hp
Assumed Parameters
CL,max
L/D
Climb Angle
45 [deg]
V_stall
30 [ft/sec]

8. Wing and Power Loading
Stall constraint:
Cruise constraint:

9. Wing and Power Loading
Climb constraint:

10. Summary Weight estimate: 5.42 lbs Wing area: 4.3 ft^2
Motor horsepower: 1.8 hp

11. Summary Weight estimate: 5.42 lbs Wing area: 4.3 ft^2
Motor horsepower: 1.8 hp

12. Questions?