Chapter 1 Lesson 3

Question 1

Spars

Answer 1

The main, lengthwise pieces of the wing.

Question 2

Ribs

Answer 2

The crosswise pieces that give the wings their shape.

Question 3

Skids

Answer 3

Long, thin runners, like a
pair of skis.

Question 4

Elevator

Answer 4

A small moving section attached to a fixed wing to help control up-and-down movement of the aircraft.

Question 5

Wing Warping

Answer 5

Twisting the tips of the wings with a series of cables.

Question 6

Yaw

Answer 6

The sidewise movement of an aircraft.

Question 7

Airfoil

Answer 7

A wing’s profile.

Question 8

The Center of Pressure

Answer 8

The focal point of lift.

Question 9

Relative Wind

Answer 9

The flow of air over the airfoil.

Question 10

Angle of Attack

Answer 10

The angle between the relative wind and the airfoil. (If you’re confused use figure 1.3 on page 30)

Question 11

Bid

Answer 11

An offer or a proposal, with a price attached.

Question 12

Strut

Answer 12

A vertical post.

Question 13

Bracing

Answer 13

The support, that was strung diagonally between the struts.

Question 14

Lateral

Answer 14

Sideways.

Question 15

Pitch

Answer 15

The movement, up or down, from the nose of the aircraft.

Question 16

Canard Configuration

Answer 16

Another name for an elevator that sits in front of the wings.

Question 17

Sateen

Answer 17

A cotton fabric woven like satin with a glossy surface.