4.0 Preliminary Design

Mission 3 Model Payload: 4.41 lbs

Size wing span for Mission 3 Takeoff

Climb to 100 meters

Varying Aircraft Parameters:

Number of Cells Propeller

Energy Available > Energy Required?

No Yes

Mission 2 Model Payload: 3.75 lbs

Fly three laps of the course

Varying Aircraft Parameters: Number of Cells

Propeller

Energy Available > Energy Required?

No Yes

Keep lightest propulsion

system

Mission 1 Model Payload: 0.00 lbs

Fly the course for 4 minutes

Variable Aircraft Parameters:

Number of Cells Propeller

Energy Available > Energy Required?

No Yes

Keep propulsion

system with best N_laps

Max propulsion weight for Mission

1 not to exceed that for Mission 2

or 3

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!!!

Save Aircraft

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Input Aircraft Parameters: Motor

Battery Type Wing Airfoil Wing Chord

Fuselage Dimensions Tail Volume

Field Conditions

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4.0 Preliminary Design

S  Optimization Analysis S  Wing Chord S  Wing Airfoil S  Tail Volume S  Motor Type S  Battery Type S  Cell Count and Propeller Choice

4.0 Preliminary Design

S  Mission Model

4.0 Preliminary Design

S  Aerodynamic Tradeoffs

Max t/c (%) Loc. Max t/c (%) 11.1 32.7

14.0 27.2

13.3 31.4

E214

SD7062

BA9

4.0 Preliminary Design

S  Propulsion Tradeoffs

4.0 Preliminary Design

S  Propulsion Tradeoffs

4.0 Preliminary Design

S  Final Optimized Aircraft

4.0 Preliminary Design

S  Lift, Drag, and Stability Characteristics

4.0 Preliminary Design

S  Lift, Drag, and Stability Characteristics

4.0 Preliminary Design

S  Lift, Drag, and Stability Characteristics

4.0 Preliminary Design

S  Predicted Mission Performance

5.0 Detailed Design

S  Dimensional Parameters

5.0 Detailed Design

S  Structural Characteristics

5.0 Detailed Design

S  System Design and Component Selection/Integration

Payload Accommodation

Water Tank Release System

Wing-Box Placement

5.0 Detailed Design

S  System Design and Component Selection/Integration

Hollow Foam and Carbon Fiber wing

5.0 Detailed Design

S  System Design and Component Selection/Integration

Motor mount Landing gear

MSC flow simulation

Tail boom weight

5.0 Detailed Design

S  Weight and Balance

M1 M2 M3

5.0 Detailed Design

S  Flight Performance Parameters