General- R22- Section 1

Question 1

Main Rotor-Articulation

Answer 1

Free to teeter and cone, Rigid inplane

Question 2

Main Rotor- Number of Blades

Answer 2

2

Question 3

Main Rotor- Diameter

Answer 3

25 Feet 2 inches

Question 4

Main Rotor- Blade Chord

Answer 4

7. 2 inches inboard

7. 7 inches outboard

Question 5

Main Rotor- Blade Twist

Answer 5

-8 Degrees

Question 6

Main Rotor-Tip Speed at 104% RPM

Answer 6

698 feet per second

Question 7

Tail Rotor-Articulation

Answer 7

Free to teeter, Rigid inplane

Question 8

Tail Rotor- Number of Blades

Answer 8

2

Question 9

Tail Rotor- Diameter

Answer 9

42 inches

Question 10

Tail Rotor- Blade Chord

Answer 10

4 inches (constant)

Question 11

Tail Rotor- Twist

Answer 11

0 degrees

Question 12

Tail Rotor- Precone angle

Answer 12

1 degree 11 minutes

Question 13

Tail Rotor- Tip speed at 104% RPM

Answer 13

622 feet per second

Question 14

Drive System- Engine to Upper Sheave

Answer 14

Two double Vee-belts with .8536:1 speed reducing ratio

Question 15

Drive System- Upper Sheave to Drive Line

Answer 15

Sprag-type overrunning clutch

Question 16

Drive System- Drive Line to Main Rotor

Answer 16

Spiral-bevel gears with 11:47 speed reducing ratio

Question 17

Drive system- Drive Line to tail rotor

Answer 17

Spiral- Bevel gears with 3:2 speed increasing ratio.

Question 18

Power Plant- model:

Answer 18

Lycoming- 0-360-J2A

Question 19

Power plant- Type

Answer 19

Four cylinder, horizontally opposed, direct drive air cooled, carbureted, normally aspirated.

Question 20

Power plant: Displacement

Answer 20

361.0 Cubic inches

Question 21

Power Plant- Rating

Answer 21

0-360-J2A 145 BHP (derated) @2700 RPM

Question 22

Max Continuous Rating

Answer 22

124 BHP at 2652 RPM @104RPM

Question 23

5 minute takeoff rating for Beta and Beta II

Answer 23

131 BHP at 2652

Question 24

Cooling System

Answer 24

Direct drive squirrel-cage blower