EMEC 499 SAE Aero Design

CompetitionCraig Kohring, Pat Tice, Sean Dineen, Mark Gasser

James Pallardy, Katie Schipf, AJ Dayvie

Plane weight less than 12 lbs (aim for 8) 15 lbs static paylod Instrumentation package 3 lb expellable payload .45 ci max engine displacement

Competition Rules Recap

GOE 525 airfoil◦ High Camber◦ Max Cl/Cd of 74 at 1.75 aoa and 25 mph

Aspect Ratio of 10 ◦ 10’ span with 1’ chord

Wing Design

Model Aspect Ratio

Wright Flyer 6.4

Boeing 727 7.1

SAE Aero 10

U-2 14.3

Wings: 2.25 lb (Both Wings) Fuselage: 2.75 lb Tail: 1.25 lb Fittings/Small Parts: 1 lb Total: Approx. 7.25 lb

Not Included: Wing bottom and fuselage monokoat, wire extensions, instrumentation

Weight

Parasitic Drag Coefficient: 0.03

Oswald Efficiency Factor: 0.9

Propeller Efficiency: 0.9

Assumptions

Thrust Required Curve

Power Required Curve

Rate of Climb

At Bozeman

Comparison (Sea Level to Bozeman)

Stability

Glide Angle: 4.8 degrees

Glide Range: 1200 ft @ 100ft above ground

Gliding Flight

Turning Radius (30 mph): 53.8 ft

Angular Velocity (30 mph): 47 degrees/sec

Turning

Control Surface Actuation Engine Fuel Consumption Static Thrust Radio Range Test Taxi Testing Ground Effect Flight Take-Off Roll In-Flight Stability In-Flight Control

Testing