Airframe Design And Materials Flashcards
1
Q
What are static loads?
A
Loads on the ground (weight & gravity)
2
Q
What are dynamic loads?
A
Forces in flight - due to manoeuvres and atmospheric conditions
3
Q
Where on the wing is the greatest stress carried?
A
Wing roots
4
Q
What is corrosion?
A
Weakens a structure and stress fractures can form
5
Q
Which two environments pose the greatest threat of corrosion?
A
Marine and humid
6
Q
What causes fatigue?
A
- High number of cycles
- Hard manoeuvring
- Low maintenance
7
Q
What is hard time maintenance?
A
- Happens at fixed intervals (A and D checks)
- Financially beneficial for airlines
8
Q
What is on condition maintenance?
A
- As and when needed
- Brakes, tyres, wipers, lights
9
Q
What is a composite structure?
A
Combination of two or more materials
10
Q
Features of composites
A
- Light
- Stiff and resistant to fatigue/corrosion
- Expensive to repair
11
Q
Max structural ramp mass
A
Max permissible mass before A/C taxis
12
Q
Max structural T/O mass
A
Max permissible mass at the start of T/O run
13
Q
Max zero fuel mass
A
Max mass of A/C without usable fuel
14
Q
Max structural landing mass
A
Max mass on landing
