POH, Weight and balance

Question 1

Where will you find the latest addition of the POH?

Answer 1

Robinson helicopter website?

Question 2

Can you park your helicopter in a small hangar space with height of 11 feet from ground to roof?

Answer 2

R44 height is 129” (10’9) so it would clear by 3”, so yes you could carefully park it in there

Question 3

What is the maximum operating altitude of R44 and why?

Answer 3

9,000 ft agl (14,000 ft density altitude)
It is to allow landing within 5 minutes in case of fire

Question 4

Define Vne, Vy, Vh?

Answer 4

Vne: Never exceed speed
(130 KT) - 2200 lb togw and below
(120 KT) - over 2200 lb togw
(100 KT) - autorotation
Also reduced with altitude and temperature

Vy: Best rate of climb speed
Greatest gain of altitude in shortest time - 55 kts

Vh: stabilized level flight speed at max continuous power.
The highest speed the helicopter can maintain while using full power in level flight. Flying at Vh for extended periods not recommended due to increased fuel burn and stress on the aircraft

Question 5

What is the necessity of having fuel tanks with bladders in the R44?

Answer 5

To prevent spills and leaks, more puncture resistant than without in case of accident

Question 6

What is the Vne for autorotation at Okotoks at 5°C?

Answer 6

98 kts or 100 normal auto vne

Question 7

What is the best autorotation speed?

Answer 7

65 kts

Question 8

What is the best range speed combination with rotor RPM in R44?

Answer 8

Most miles for least fuel burn
100 KT

Question 9

What is the best endurance speed combination with rotor RPM in R44?

Answer 9

Most time aloft, 108-109 KT?

Question 10

What is the restriction of baggage weight to be placed in the compartment and why?

Answer 10

50 lbs, not sure

Question 11

Give the actions for loss of tail rotor thrust in forward flight?

Answer 11

Failure is usually indicated by nose right yaw which cannot be corrected by applying left pedal.
1. Immediately enter autorotation.
2. Maintain at least 70 KIAS if practical.
3. Select landing site, roll throttle off into overtravel spring, and perform autorotation landing.

NOTE
When a suitable landing site is not available, the vertical stabilizers may permit limited controlled flight at low power settings and airspeeds above 70 KIAS; however, prior to reducing airspeed, enter full autorotation.

Question 12

Give actions for alternator failure while you are 15 Nm away from the airport in Class C airspace?

Answer 12

Turn off all unnecessary electrical equipment, switch alternator off then on after one second, continued flight can result in loss of both tachs producing dangerous flight condition. Request landing with atc, or divert to closer airport if necessary

Question 13

How do the tachs function without the alternator?

Answer 13

Through the clutch actuator switch and a special circuit direct to the battery

Question 14

What procedures would you follow for noise abatement?

Answer 14

• avoid flying over assemblies of people, if necessary try to stay 2000 ft agl
• avoid blade slap, usually below speeds of 100 KT, until descent rate is 1000 fpm, then steep approach until below 65 KT
• avoid prolonged flight over nose sensitive areas
• vary flight path to not overly sane buildings twice
• look ahead and select least noise sensitive route

Question 15

Calculation of Density Altitude?

Answer 15

Density altitude in feet = pressure altitude in feet + (120 x (OAT - ISA temperature))

Question 16

Question on height velocity diagram?

Answer 16

Refer to FHZY POH

Question 17

Question on performance graphs - IGE / OGE over?

Answer 17

Refer to FHZY POH

Question 18

At what height AMSL does the throttle-collective correlation and governor become less effective?

Answer 18

6,000 ft section 7 poh

Question 19

How does the correlator function in the R44?

Answer 19

Automatically adjusts throttle based on collective input, as you raise collective, correlator increases rpm, vice versa. Still works without small collective inputs and governor off

Question 20

After how much time should the blades start turning with the clutch switch engaged?

Answer 20

5 seconds or less

Question 21

What would happen if you operate a helicopter with excessive slack in the vee-belts?

Answer 21

Might not tension properly, could cause slippage and damage to belts or drive system

Question 22

What is the function of the auxiliary fuel pump?

Answer 22

Primes the engine for starting, and runs in flight to provide fuel pump redundancy

Question 23

Which fuel tank is filled first during refueling and why?

Answer 23

Main tank first because the auxiliary is gravity fed into the main tank

Question 24

What is the recommended tire pressure in the ground handling wheels?

Answer 24

60 psi

Question 25

What is the total capacity of engine oil in the R44 and at what frequency should it be changed?

Answer 25

Max 9 minimum 7, should be changed every 50 hours or 4 months, whichever comes first

Question 26

Which engine oils can be used in the R44 and which grade of oil is recommended in the summers and in the winters?

Question 27

What is the difference between MCP and MTOP?

Answer 27

MCP: Maximum Continuous Power, The highest power level an engine can sustain for prolonged periods MTOP: Maximum Takeoff Power Time limited, highest power an engine can produce for a short time during takeoff

Question 28

Where does the main rotor brake act on the aircraft?

Question 29

What is the gross weight of the aircraft?

Question 30

What is the difference between Gross Weight and Basic Empty Weight?

Answer 30

Gross Weight includes everything, Basic Empty Weight is the aircraft without payload

Question 31

Where is the C of G located in the aircraft before departure?

Question 32

What is the implication of forward C of G on the aircraft?

Answer 32

Requires more aft cyclic for flight, may not have enough cyclic available for autorotation or not be able to reduce speed to land

Question 33

What is the implication of rearward C of G on the aircraft?

Answer 33

Requires extra forward cyclic, may not be possible to reach allowable forward airspeed, can cause dissymetry of lift and blade flapping which causes rotor disk to tilt at, causing loss of control and possible blades striking tail boom

Question 34

Can a descent with high gross weight and forward C of G put you in any emergency condition?

Answer 34

Yes, you might not have enough rearward cycling left to slow down for landing

Question 35

How will you ensure in the field that your aircraft is within C of G limits?

Answer 35

Weight and balance sheet? Hover check?

Question 36

What is the minimum pilot weight to fly the R44?

Answer 36

150 lb