PPRuNe Forums - View Single Post - Flight Planning Exam Question
View Single Post
Old 13th October 2005 | 11:53
  #1 (permalink)  
mazzy1026

Spicy Meatball
 
Joined: Jan 2004
Posts: 1,115
Likes: 0
From: Liverpool UK
Question Flight Planning Exam Question

Why is full flap selected during the approach and landing phase of a flight?

a) The safe flying speed is increased and a flatter approach path is achieved which improves vision.
b) The approach speed is reduced and a steeper approach path flown which improves vision.
c) The approach speed is reduced and a flatter approach path flown which improves vision.

I chose B (I am sitting the exam on Saturday).

My understanding was that when you lower flap, you lower the nose to maintain speed, which IMPROVES ahead vision and gives a steeper approach so why is the correct answer (according to the confuser) C ?

The explanation goes into the coefficient of lift (and it's related equations) and how that when you lower flap, you increase the wing angle of attack, and the upper camber of the wing etc (depending on type of flap). I still don't understand how the approach would be flatter?

Thanks

Maz
mazzy1026 is offline