Lift basics
• Bernoulli + Newton (downwash); CL vs AoA; critical AoA.
Drag
• Parasite (form/skin/induced) & total drag; best L/D.
Performance factors
• Weight ↑ → stall speed ↑; forward CG → higher stall speed/trim changes.
• Density altitude ↑ → takeoff/landing/climb degrade.
Speeds
• Vx vs Vy; Vg (best glide) and effects of weight/wind.