Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
What is plywood? |
Plies of wood glued together with the grain 90 degree of each other |
|
|
What wood species is used stardard for strength? |
Wing attachment fittings, landing gear fittings, engine mount fittings, lift and interplane strut fittings. |
|
|
what would be the result of insufficient gluing pressure? |
Think glue lines (indicates weak joints) |
|
|
What methods are used to apply gluing pressure? |
Parallel clamps or G- clamps |
|
|
How is plywood prepared for bending? |
Soak in hot water until pliable. |
|
|
What type of joint is generally used in splicing structural members? |
Scarf joint. |
|
|
What indicates compression failure? |
Faint lines perpendicular to the grain. |
|
|
Is decay acceptable in wood? |
Not in any form |
|
|
What should the moisture content of wood be? |
8-16% |
|
|
How do you find moisture content? |
Weight before drying-weight after drying/weight after drying ×100 |
|
|
How do you know when wood is decaying? |
Discoloration, dry sections |
|
|
Name 3 forms of wood used on aircraft structures? |
Solid, laminated, and plywood |
|
|
What is laminated wood? |
Two or more plies of wood glued together with the grains in parallel. |
|
|
What wood species is used stardard for strength? |
Sitka spruce |
|
|
Why is a bushing in a wooden spar shorter than the spar thickness? |
If the wood shrinks it won't affect the joint or both. |
