R22 Basics

Question 1

How long is the R22?

Answer 1

259” from front of skid to rear tail rotor.

345” from front of tip path plane to rear tail rotor.

Question 2

How wide is the R22?

Answer 2

76” skid to skid

Question 3

How tall is the R22?

Answer 3

107”

Question 4

What is the diameter of the main rotor?

Answer 4

25’ 2”

Question 5

What is the diameter of the tailrotor?

Answer 5

3’6”

Question 6

What is the engine/powerplant of the R22?

Answer 6

Lycoming 0-360-J2A four cylinder, horizontally opposed, direct drive air cooled, carbureted, normally aspirated engine.

Question 7

Describe the four cylinder engine.

Answer 7

.

Question 8

What does horizontally opposed mean?

Answer 8

X

Question 9

What does it mean that the engine is direct drive?

Answer 9

Direct power transfer to the upper and lower sheaves.

Question 10

What does carbureted mean?

Answer 10

X

Question 11

What does normally aspirated mean?

Answer 11

an internal combustion engine in which oxygen intake depends solely on atmospheric pressure and does not rely on forced induction through a turbocharger or a supercharger.

Question 12

What is the horsepower of the engine?

Answer 12

145 BHP (derated) @ 2700 RPM

Question 13

What is the maximum continuous rating in R22?

Answer 13

124 BHP at 2652 RPM (104% on tachometer)

Question 14

What is the five minute takeoff rating in R22 Beta II?

Answer 14

131 BHP at 2652 RPM

Question 15

What is the cooling system on the R22?

Answer 15

Direct drive squirrel cage blower.

Question 16

Describe the direct drive squirrel-cage blower.

Answer 16

X

Question 17

What is the max gross weight?

Answer 17

1370 lb.

Question 18

What is the min gross weight?

Answer 18

920 lb.

Question 19

What is the max weight per seat including baggage compartment?

Answer 19

240 lb.

Question 20

Is aerobatic flight allowed in the R22?

Answer 20

No

Question 21

What type of maneuvers are prohibited?

Answer 21

Low-G cyclic pushovers which can cause a catastrophic loss of lateral control.

Question 22

How do you eliminate a low-G condition?

Answer 22

• immediately apply gentle aft cyclic.

- Should a right roll commence apply aft cyclic to reload rotor before applying lateral cyclic to stop the roll.

Question 23

When is flight with the governor off allowed?

Answer 23

In-flight system malfunction or emergency procedures training.

Question 24

What is the maximum operating density altitude?

Answer 24

14,000’

Question 25

What is the capacity of the fuel tanks?

Answer 25

16.9 gallons in the main, 9.4 gallons in the aux for a total of 26.3 gallons.

Question 26

What are the flight restrictions with regard to wind for a pilot with less than 200 hrs in helicopters and 50 hrs in the R22?

Answer 26

1. Flight when surface winds exceed 25 kts. 2. Flight when surface wind gust spreads exceed 15 kts. 3. Continued flight in moderate, severe, or extreme turbulunce.

Question 27

What should airspeed be adjusted to when encountering moderate, severe, or extreme turbulence?

Answer 27

60 KIAS and 0.7 Vne (72 KIAS) and no lower than 57 KIAS.

Question 28

What is moderate turbulence?

Answer 28

Turbulence that causes: 1) changes in altitude and attitude 2) variations in indicated airspeed 3) aircraft occupants to feel definite strains against seat belts.

Question 29

What type of rotor system does the R22 have?

Answer 29

Semi-rigid underslung rotor system that is free to tilt with respect to the main the rotor shaft on what is known as a teetering hinge.

Question 30

What does the teetering hinge do?

Answer 30

Allows the blades to flap together as a unit. As one blade flaps up the other flaps down.

Question 31

What does air cooled mean?

Answer 31

No water is used to cool the engine. No radiator.