Design Requirement
25 deg take off min angle
15 ft/s Vstall
10 min endurance
3G turns
initial takeoff angle after launch?
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200 ft altitude
payload weight
minimize plane weight
fixed wing
10min max assembly time
belly landing
prop accomndation
compatible with the existing control system (Phixhawk and remote controller)
prop accomdation
fuselage needs to be support
removable payload
hand launch
safe for throwers
easy to hold
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Subsystem requirements
aerodynamcis
Structures
sustain loading imposed during flight
3G max
control surface sizing
Stable flight
CG within reasonable limit
achieve sable flight with satisfactory control authority\
sufficient lift generated by wing
startegy: size the wing for 1.5 lb payload first
1/4 - 1/3 chord length ahead of Cp
need to sustain belly landing
electronics
battery should never go below 50% charge
wing spar inside wing
removable / rechagable
wing
strategy: attaching using rubber band
team organization
budge requirement
electronics must sustain heating/cooling
electronics attachments music sustain heating/cooling
V speeds
v_stall, v_takeoff, v_landing
propulsion
Enough thrust to achieve v-speeds
a propeller compatible for the motor
CFD analyis
Strategy XLFR analysis
General Design Requirements
Fit in the storage box
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Selig high lift low Reynolds airfoil
Reflec airfoil
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