Chapter 2 - Speed, Lift and Drag

Question 1

Vmd for a Jet in clean and flap config

Answer 1

1. 6 Vs

1. 4Vs

Question 2

Vmd for a Prop in clean and flap config

Answer 2

1. 3 Vs

1. 2 Vs

Question 3

What is the approach speed we should aim for and which Vmd figure is speed unstable

Answer 3

1.3 Vs

Flap config on a prop

Question 4

If mass increases what happens to-
Take off distance
Gliding range
Thrust available
Drag
Climb performance

Answer 4

Take off distance - increases
Gliding range - constant
Thrust available - constant
Drag - increases
Climb performance - decreases