Lift

Lift in flight

There are 4 forces acting on an aerospace vehicle in flight.

1. Thrust
2. Drag
3. Lift
4. Mass

• Weight is a product of the mass of an object and the gravity in the environment
• An aircraft will climb as long as the lift is greater then the weight
• The aircraft stay the same altitude when lift and weight are equal
• The aircraft will descend when weight is greater then lift

External links

• NASA tutorial Lift Tutorial
• Bernoulli’s Equation
• Wiki Lift as a force