Lesson 5 POH

Question 1

What is the objective of Lesson 5 POH/Performance?

Answer 1

The student will learn how to use manufacturer data from the Pilot’s Operating Handbook to predict performance and control the weight and balance condition of the helicopter.

Question 2

What does POH stand for?

Answer 2

Pilot’s Operating Handbook

Question 3

Name three sections included in the R22 Helicopter Flight Manual.

Answer 3

• Operating Limitations
• Performance Information
• Emergency Procedures

Question 4

What is the NEVER EXCEED AIRSPEED (Vne) for the R22 up to 3,000’ Density Altitude?

Answer 4

102 KIAS

Question 5

What is the maximum rotor RPM during power on for the R22?

Answer 5

104%

Question 6

Define the engine model of the R22 helicopter.

Answer 6

Lycoming O-360-J2A

Question 7

What does the ‘O’ in Lycoming O-360-J2A represent?

Answer 7

Horizontally Opposed

Question 8

What is the maximum oil temperature for the R22?

Answer 8

245°F / 118°C

Question 9

Fill in the blank: The maximum glide distance configuration airspeed is approximately _______.

Answer 9

75 KIAS

Question 10

What is the maximum flight oil pressure for the R22?

Answer 10

95 psi

Question 11

What color code indicates operating limits on instrument markings?

Answer 11

Red

Question 12

What is indicated by a low fuel warning light?

Answer 12

Approximately 1.5 gallons of usable fuel remaining

Question 13

What does the acronym CAMALSFOOT represent?

Answer 13

• Compass
• Altimeter
• Manifold pressure gauge
• Airspeed indicator
• Landing Gear Position Indicator (If applicable)
• Safety belts
• Fuel gauge
• Oil temperature gauge
• Oil pressure gauge
• Tachometers

Question 14

True or False: Aft cyclic is required when collective is lowered at high airspeed.

Answer 14

True

Question 15

What should a pilot do immediately upon experiencing a power failure?

Answer 15

Lower collective to enter autorotation.

Question 16

What is the precautionary or special operating procedure range color on instrument markings?

Answer 16

Yellow

Question 17

What is the purpose of the height/velocity diagram?

Answer 17

To guide takeoff and landing performance

Question 18

What action is required for a power failure below 8’ AGL?

Answer 18

Allow aircraft to settle and raise collective just before touchdown.

Question 19

What happens if the low RPM warning system fails?

Answer 19

The pilot will not hear the horn with a failed headset.

Question 20

List the instruments required by Robinson for night flight.

Answer 20

• Navigation Lights
• Anti-collision Lights
• Instrument Lighting
• Landing Light
• Celestial or Ground Lighting

Question 21

What should be done in case of an engine fire during start on the ground?

Answer 21

Continue cranking and attempt to start.

Question 22

What is the maximum manifold pressure indicated by the red line?

Answer 22

24.1 in. Hg

Question 23

Fill in the blank: The best glide ratio is about _______.

Answer 23

4:1 or 1 NM/1500’ AGL

Question 24

What is indicated by the MR Temp light?

Answer 24

Excessive temperature of the main rotor gearbox.

Question 25

What is the function of the clutch indicator light?

Answer 25

Indicates clutch actuator circuit is on, either engaging or disengaging clutch.

Question 26

What should be done if a tachometer fails in flight?

Answer 26

Use remaining tach to monitor RPM.

Question 27

What is the procedure for an emergency water landing if power is off?

Answer 27

Follow same procedures as for power failure over land until contacting water.

Question 28

What is the maximum oil pressure during engine start and warm up?

Answer 28

115 psi

Question 29

What is the minimum flight oil pressure for the R22?

Answer 29

55 psi

Question 30

What should be done if the MR Chip light activates?

Answer 30

Land immediately if accompanied by noise, vibration, or temperature rise.

Question 31

What does the term 'Land immediately' mean in emergency procedures?

Answer 31

Land on the nearest clear area where a safe normal landing can be performed.

Question 32

What is the minimum rotor RPM during power off?

Answer 32

90%

Question 33

What should you never do when initiating a descent?

Answer 33

Initiate a descent with forward cyclic ## Footnote This can produce a low-G condition.

Question 34

What is the recommended initial airspeed for the final approach into wind?

Answer 34

60 KIAS

Question 35

What should be the rate of descent before reducing airspeed below 30 KIAS?

Answer 35

Less than 300 FPM

Question 36

What action should be taken after the initial ground contact?

Answer 36

Lower collective to full down position

Question 37

What should you do before reducing rotor RPM when landing on a slope?

Answer 37

Return cyclic control to neutral

Question 38

True or False: You can leave helicopter flight controls unattended while the engine is running.

Answer 38

False

Question 39

What should be done if a passenger is entering or exiting with the engine running?

Answer 39

Hold throttle closed

Question 40

What does the Airspeed Calibration Curve show?

Answer 40

Calibrated airspeed in reference to KIAS

Question 41

What is Density Altitude?

Answer 41

Pressure Altitude corrected for non-standard temperature

Question 42

What does the In Ground Effect Hover Ceiling chart help determine?

Answer 42

Maximum allowable weight for IGE hover or highest pressure altitude for given weight

Question 43

Factors that affect IGE Hover Ceiling include:

Answer 43

* Winds * Surface type * Obstacle induced recirculation * Density altitude/pressure altitude/weight

Question 44

What negatively affects performance in IGE hover?

Answer 44

High, hot, humid conditions

Question 45

What does the Height-Velocity Diagram indicate?

Answer 45

Safe autorotation altitudes and airspeeds

Question 46

What is the primary purpose of performance charts?

Answer 46

To determine helicopter performance in various situations

Question 47

What is Pressure Altitude?

Answer 47

Altitude when the aircraft altimeter is set to 29.92 'Hg

Question 48

How does air density affect aircraft performance?

Answer 48

Less dense air reduces power, thrust, and lift

Question 49

What happens to density altitude as air density increases?

Answer 49

Density altitude decreases, improving aircraft performance

Question 50

How does temperature affect air density?

Answer 50

Higher temperatures decrease density; lower temperatures increase density

Question 51

What impact does humidity have on performance?

Answer 51

Increases density altitude and decreases performance

Question 52

What effect do headwinds have on translational lift?

Answer 52

Increases rotor efficiency

Question 53

What is the consequence of tailwinds and crosswinds during flight?

Answer 53

May require more tail rotor thrust, increasing engine power demand

Question 54

What conditions negatively affect helicopter performance?

Answer 54

High altitude, hot temperatures, humidity, high gross weight

Question 55

What do the cross-hatched regions in the height-velocity diagram indicate?

Answer 55

Areas to avoid for safe autorotation

Question 56

What causes Carburetor Ice?

Answer 56

Lower pressure and temperature in the venturi tube

Question 57

When is carb heat required?

Answer 57

Temps between -4 and 30 degrees Celsius; dew point spread below 15 degrees

Question 58

What does applying carb heat do?

Answer 58

Prevents ice buildup in the carburetor

Question 59

What is the effect of full carb heat on power?

Answer 59

Reduces power by 1.5 inHg