It includes strength analysis and design for uniform materials in the optimization to produce the best possible practical design. Experience has shown this to be an important design factor.
Data calculated include: local flow field power grading curve, section lift and drag coefficients, Reynolds number, windmill diameter, effective pitch, activity factor, efficiency, blade pitch angle, blade angle-of-attack, thrust (drag) and power coefficient, windmill rpm, gear reduction factor, speed of sound, windmill chords, blade angles and airfoil coordinates at every desired blade station. Blade strength output includes margin of safety, bending, tensile and compressive stresses, tip deflection and blade weight.
Program input is interactive with on-line definitions for each input. The input calls for starting windmill size, performance objectives and design constraints or requirements. The program allows the user to input any desired airfoil and optimize pitch distribution, taper or planform shape. Section data may be input at each blade radial station. The program corrects drag and lift for local variation in Reynolds number radially. To get you started, the Clark-Y and R.A.F.-6 blade airfoils are built into the program.