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Personal Drone Calculations and Notes

Drone Design

Rendering of Drone

Wing Body/Tail Design

  • b_w = 2.5ft = .762m
  • c_bar = 4in = .1016m
  • S_w = .0774 m^2

Airfoil: NACA 4412 - plots at Re = 1e6

Cl vs Alpha Cd vs Alpha L/D for 10m/s vs trim alpha

Wing Body Plots

Wing lift vs Velocity at 5deg trim Drag lift vs Velocity at 5deg trim

Tail Plots

Wing lift vs Velocity at 5deg trim Drag lift vs Velocity at 5deg trim

3d Printing and Design

wing-block wing-body-connector

Dev Env Activation

source env/bin/activate - use local env

deactivate - use global env# fixed-wing-drone-design

Process

Collecting my design process into one place

  1. Pick wing body airfoil (NACA 4412)
  2. Pick wing body aspect ratio (7.5)
  3. Pick wing body chord length (c_bar = .1016m) (limited by 3d printer size and practical assembly restraints)
  4. Calculate b, S from the two above values
  5. Calculate L, D, L/D for V=[1,20] and trim_alpha=[-5,5.5]
  6. Choose optimal trim_alpha from above calculations
  7. Calculate Lift at trim from main wing body
  8. Pick Tail airfoil (NACA 4412)
  9. Pick Tail chord length/span length
  10. Calculate lift from tail at trim - i_t