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Design Requirement - Coggle Diagram
Design Requirement
Subsystem requirements
aerodynamcis
control surface sizing
achieve sable flight with satisfactory control authority\
Stable flight
CG within reasonable limit
1/4 - 1/3 chord length ahead of Cp
sufficient lift generated by wing
startegy: size the wing for 1.5 lb payload first
wing
strategy: attaching using rubber band
Selig high lift low Reynolds airfoil
http://airfoiltools.com/airfoil/details?airfoil=s1223-il
Reflec airfoil
http://airfoiltools.com/airfoil/details?airfoil=naca24112-jf#polars
V speeds
v_stall, v_takeoff, v_landing
CFD analyis
Strategy XLFR analysis
Structures
sustain loading imposed during flight
3G max
wing spar inside wing
need to sustain belly landing
electronics
battery should never go below 50% charge
removable / rechagable
electronics must sustain heating/cooling
electronics attachments music sustain heating/cooling
team organization
budge requirement
propulsion
Enough thrust to achieve v-speeds
a propeller compatible for the motor
25 deg take off min angle
initial takeoff angle after launch?
belly landing
prop accomdation
fuselage needs to be support
hand launch
safe for throwers
easy to hold
removable payload
x
15 ft/s Vstall
10 min endurance
3G turns
200 ft altitude
payload weight
minimize plane weight
fixed wing
10min max assembly time
prop accomndation
compatible with the existing control system (Phixhawk and remote controller)
General Design Requirements
Fit in the storage box