Drag

Parasite drag - skin friction
Induced Drag - caused by angle of attack

• Skin Friction - friction on the skin from the air
• Form Drag - resistance of body parts moving through the air
• Interference Drag - assembled aircraft creates more drag than the parts would if they were individuals
• Leakage Drag - air leaks out doors and windows

-Slow, clean and heavy is the condition with the most induced drag. -Wingtip vortices's produce induced drag.