Wooden Wing Structure Mr.aziz first 40 page

What are the main lengthwise members in a wooden wing structure called?

• Ribs

• Spars

• Stringers

What is the main material used for aircraft wooden spars?

• Sitka spruce

• Mahogany

• Oak

Why are laminated spars often used instead of solid spars?

• They look better

• They are stronger and cheaper

• They are lighter but equally strong

What separates the spars in a truss-type wing?

• Drag wires

• Compression members

• Stringers

What type of members take compressive loads between spars?

• Compression ribs

• Drag ribs

• Anti-drag wires

What component holds the truss together in a wooden wing?

• Aluminum tubes

• Steel wires

• Wooden ribs

What is the function of drag wires in a truss-type wing?

• Prevent forward movement

• Oppose rearward drag forces

• Prevent twisting

What do anti-drag wires prevent?

• Wing bending

• Rearward movement

• Forward drag forces

What is a box spar?

• A spar built with plywood sheets

• A hollow box-shaped spar between two booms

• A steel-reinforced spar

What purpose does the box structure between spars serve?

• Increases wing flexibility

• Adds torsional and bending strength

• Reduces aerodynamic drag