Walkthrough for the calculation of a light aircraft

The purpose of this e-book - to make the process of calculating their own aircraft more affordable for a wide range of amateur designers. Despite the fact that there is a sufficient number of books on aviation planning for schools and benefits for designers, they are sinning unnecessary complexity in the presentation of the material, considering all aspects of the design of aircraft, including for example, and supersonic. New Designer is virtually 100% of the aircraft designs for independent operations and training. For such aircraft developed certain criteria to get a simple to operate and safe to use the unit. It was they who formed the basis of this guide. Everything else should be added that the proposed guide you to illustrate the calculation process uses a single example, that allows us to follow the entire process from beginning to end.


So, by setting in Step 1 of 4 parameters - number of seats, the stall speed, the power of the motor used and the operational handling, you will determine the future:


Weight and dimensions



STEP 2. Determination of take-off weight in the first approximation.

STEP 3: Determination of the mass of the structure.

STEP 4. Determination of take-off weight in the second approximation.

STEP 5: determine the needs of the wing area.

STEP 6. The definition of the geometric dimensions of the wing.

STEP 7. Determination of the geometric dimensions of the horizontal stabilizer and elevator.

STEP 8. Determination of the geometric dimensions of the vertical stabilizer and rudder.

STEP 9. Determination of the geometric dimensions of the ailerons.

Aerodynamics



Step 10. Selecting the profile of the wing.

STEP 11. Determination of the derivative coefficient Lifting force the angle of attack at the unseparated flow.

STEP 12. Determination of the maximum rate of Lifting force

STEP 13. Determination of the critical angle of attack stall

STEP 14. Mechanization of the wing

STEP 15 clarifies the meaning of the stall

STEP 16. Determination of the Reynolds number for the maximum speed mode

STEP 17. Determination of the coefficient of friction

STEP 18. Determination of the coefficient that takes into account the thickness of the airfoil

STEP 19. Determination of the resistance of an isolated wing of the regime of zero Lifting force

STEP 20. Determination of the resistance of the wing to the zero mode Lifting force

STEP 21. Determination of induced drag of the wing

STEP 22. Determination of the resistance-lift

STEP 23. Determination of drag tail

STEP 24. Determination of the drag of the fuselage

STEP 25. Determination drag chassis

STEP 26. Determination drag other elements of design

STEP 27. The calculation of the polar plane

STEP 28. The calculation of the aerodynamic qualities of the aircraft

STEP 29. The calculation of the diameter of the propeller

STEP 30. The calculation of the propeller pitch

STEP 31.Opredelenie static thrust propeller

STEP 32.Opredelenie perfect traction screw

STEP 33.Opredelenie efficiency propeller

STEP 34.Opredelenie real thrust of the propeller

STEP 35.Opredelenie geometric parameters of the propeller

STEP 36.Opredelenie required power for level flight

STEP 37.Opredelenie available power screw

STEP 38.Opredelenie maximum level flight speed

STEP 39.Opredelenie rate of climb

STEP 40. The calculation of take-off distance

STEP 41. The calculation of the landing distance

STEP 42. The calculation of alignment

STEP 43. The calculation of the focus plane

STEP 44. The calculation of the maximum rear centering plane

STEP 45. The calculation of the longitudinal moment of the wing

STEP 46. The calculation of rates reflecting udadenie horizontal tail from the wing

STEP 47. The coefficient that takes into account deceleration of the flow at the horizontal tail on landing

STEP 48. Calculation of Lifting force without wing flaps in the landing posi