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POH Flashcards

1
Q

MCP and 5 min T/O BH Power

A

Raven I: 205/225

Raven II: 205/245

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2
Q

Max Gross Weight

A

Raven I: 2400 lbs

Raven II: 2500 lbs

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3
Q

Minimum Gross Weight

A

Raven I: 1550 lbs

Raven II: 1600 lbs

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4
Q

Individual seat limits

A

300 lbs including baggage compartment

50 lbs max in baggage compartment

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5
Q

Main Rotor Diameter

A

33’

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6
Q

Vne

A

≤2200 lbs TOGW = 130 KIAS
>2200 lbs TOGW = 120 KIAS

100 KIAS:
Autorotation
Any door(s) removed
MAP > MCP

Do not exceed 110 KIAS except in smooth air (yellow arc on ASI or placard for older ASI)

Vne Chart

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7
Q

Power on/off RPM limits

A

Raven I: 99%-102% (actual RPM 396-408); 90%-108% (actual RPM 360-432)

Raven II: 101%-102% (actual RPM 404-408); 90%-108% (actual RPM 360-432)

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8
Q

Solo Pilot Weight

A

minimum 150 lbs

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9
Q

Fuel capacity

A

Total usable with bladders:
46.5 gal
Main: 29.5
Aux: 17

Total with unusable:
47.7
Main: 30.5
Aux: 17.2

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10
Q

Calculated gallons per hour

A

17

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11
Q

Altitude Limits

A 
14,000 DA
9000 AGL (to allow landing in 5 minutes in case of fire)
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12
Q

Action for hydraulic system failure

A
  1. Verify HYD switch on
  2. If not restored, HYD switch off
  3. Adjust airspeed and flight for comfortable flight
  4. Land as soon as practical

If HYD switch is OFF, try pulling HYD circuit breaker to restore
>Run-on Landing

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13
Q

MAP gauge yellow arc means ….

A

variable MAP limits

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14
Q

Land immediately:

A

Land on the nearest clear area where a safe normal landing can be performed. Be prepared for autorotation during approach, if required.

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15
Q

Land as soon as practical:

A

Landing site is at pilot’s discretion based on nature of problem and available landing areas. Flight beyond nearest airport is not recommended.

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16
Q

What do you do if fuel filter light illuminates?

A

Indicates fuel strainer contamination.
If no other sign of a problem land as soon as practical.
If accompanied by AUX fuel pump warning light or erratic engine operation, land immediately.

School: “Land immediately”

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17
Q

AUX fuel pump light

A

Indicates low AUX fuel pump pressure.
If no other sign of a problem land as soon as practical.
If accompanied by erratic engine operation, land immediately.

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18
Q

3 failed attempts at starting

A

Wait 10 minutes for starter to cool

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19
Q

Why is there an AUX fuel pump?

A

To prime for starting and fuel pump redundancy in flight

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20
Q

Will HYD be lost if ALT and battery are inop?

A

No, runs on HYD pump on main rotor gear box.

On gear box to keep HYD in case of engine failure.

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21
Q

How do we know if the engine driven fuel pump is operational?

A

Normal engine operation when clutch switch is disengaged during startup and shutdown.

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22
Q

What happens if pumps supply too much fuel to engine?

A

Excess returns to tanks

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23
Q

MAP gauge red line

A

Raven I: 26.3” Hg

Raven II: 26.1” Hg

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24
Q

Max Glide configuration:

A

90 KIAS 90%

Increase RPM to a minimum of 97% by 500’ AGL

4.7:1
1 NM per 1300’ AGL

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25
Minimum descent configuration:
55 KIAS 90% Increase RPM to a minimum of 97% by 500' AGL 4:1 1 NM per 1500' AGL
26
How much time left when low fuel light comes on?
10 minutes at cruise power. 3 gallons of fuel left.
27
Why should we fly with doors latched but not locked?
To allow for rescue or emergency exits.
28
Amount of blade twist?
-6°
29
What will happen if you pull the HYD circuit breaker?
Nothing, unless the HYD switch is broken in the OFF position; then pulling circuit breaker would disconnect HYD switch and turn HYD back on if pump is not damaged
30
Operating pressure of HYD?
450 to 500 psi
31
Location of pitot-static drain lines?
Underside of cabin in frwrd inspection panel
32
Vy
best rate of climb | 55 KIAS
33
Max range airspeed
100 KIAS Certain conditions may require lower airspeeds
34
Minimum oil for take off?
7 quarts
35
Where is the CO sensor located?
Above pilot's heater outlet
36
How is engine fire light actuated?
By a temperature switch at the forward end of horizontal firewall
37
Loss of HYD fluid indications?
May cause intermittent and/or vibrating feedback in controls
38
Vh?
Stabilized level flight at MCP
39
Vne with pop-out floats inflated
80 KIAS
40
If CO light illuminates:
Shut off heater Open door and nose vents If hovering, transition to forward flight
41
Hydraulic system consists of:
Pump, 3 servos (1 for each push-pull tube), a reservoir, and connecting lines Reservoir behind MR gear box on steel tube frame includes a filter, pressure relief valve, and pilot controlled pressure shut-off valve.
42
Fuel sample locations
Main and AUX tanks in right side cowl door. | Gascolator lower right side of firewall.
43
Electrical system
28 volt 70 amp ALT 24 volt sealed lead-acid battery Battery relay Alternator control Unit
44
Air restart
1. Mixture off 2. Throttle closed 3. Starter - enage 4. Mixture - move slowly rich while cranking Not recommended below 2000' AGL Do not attempt if: not in stabilized autorotation or engine malfunction is suspected
45
How long to prime?
First flight: 3-5 seconds | Other: 2 seconds
46
CO monitor should flash how many times when master is turned on?
2
47
What is critical altitude?
Max altitude which an engine can maintain it's full rated HP
48
Approved fuel grades?
100 LL 100/130
49
Other locations battery could be found
Under front left seat | Beneath instrument console
50
Powerplant
``` Raven I: Lycoming O-540-F1B5 6 cylinder, horizontally opposed, direct drive, air cooled, carbureted, normally aspirated Normal rating: 260 BHP MCP: 205 BHP 5 min T/O: 225 BHP 2718 Max RPM @ 102% ``` Raven II: Lycoming IO-540-AE1A5 6 cylinder, horizontally opposed, direct drive, air cooled, fuel injected, normally aspirated Capable of 300 HP, normally rated at 260 HP MCP: 205 BHP 5 min T/O: 245 BHP 2718 Max RPM @ 102%
51
Blade Diameter
Main rotor = 33' | Tail rotor = 4' 10"
52
Oil Pressures
Min during idle = 25 psi Min during flight = 55 psi Max during flight = 95 psi Max during start and warm up = 115 psi
53
When collective is lowered at high airspeed....
aft cyclic is required.
54
T/O, climb, and approach A/S
60 KIAS
55
Max climb A/S
55 KIAS
56
Max range A/S
100 KIAS
57
Max cruise A/S
110 KIAS ( do not exceed except in smooth air, and then only with caution)
58
Significant turbulence A/S
60 to 70 KIAS
59
If engine doesnt fire after 5 to 7 seconds of cranking...
repeat priming sequence and reattempt start. | If fails to start after 3 attempts, allow starter to cool 10 minutes.
60
If engine fires momentarily but dies before or while moving mixture to rich...
pull mixture off, engage starter, and push mixture slowly rich while cranking
61
Avoid blade slap
Generally occurs at airspeeds <100 KIAS. Avoid by maintaining 100 KIAS until rate of descent is over 1000 fpm, then using a fairly steep approach until A/S is below 65 KIAS
62
HYD off effects on controls
Collective inputs cause longitudinal cyclic forces. | Any cyclic input will cause the collective to lower.
63
Clutch fuse
Prevents actuator motor from overload tripping the clutch circuit breaker. An open circuit breaker removes power from clutch motor and LIGHT.
64
What is the AUX fuel pump?
Used for priming. Runs after start up for redundancy, and as long as the engine has oil pressure and the clutch switch is in the engage position.
65
What illuminates the fuel filter caution light?
A pressure switch on the gascolator if the strainer becomes contaminated
66
What illuminates the AUX Fuel Pump light?
A pressure switch downstream of the aux fuel pump when the aux fuel pump output pressure is low.

Robinson R44 (5 decks)

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