Module 6.3.2 Wood Flashcards
1
Q
What is the difference between a Truss-type and box spar wing?
A
- Truss type have drag and anti-drag wires.
- Box spars, the front and rear spars are boxes.
2
Q
What is a drag wire?
A
A wire that runs from Inboard to outboard.
3
Q
What is an anti-drag wire?
A
A wire that runs from outboard to inboard.
4
Q
What loads are box spars good at taking?
A
Torsional and bending.
5
Q
What wood is best for aircraft building?
A
Sitka Spruce
6
Q
What are the next best woods for aircraft construction?
A
- Douglas fur
- Noble fur
- Yellow poplar
7
Q
What method of sawing is used for aviation construction?
A
Quarter-sawn
8
Q
What factors affect the assessment?
A
- Cut
- Grain shape
- No. of growth rings
- Grain slope
9
Q
In soft wood what should the growth rings per inch be?
A
6 rings per inch
10
Q
What is the Max grain slope?
A
1:15
11
Q
What is interior finishing?
A
Coating of the areas of contact between wood and metal. This stops corrosion.
