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Seaplane Flying > Grumman Widgeon > Flashcards

Grumman Widgeon Flashcards

1
Q

G

GUMPFTS

A

GAS-on, X-Feed off

only two levers are to be on at the same time

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2
Q

U
GUMPFTS

(5 items)

A

-Undercarriage -
Water-Up-Land-Down

Handle, Light, Hydraulic Pressure, mirror, locks

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3
Q

M

GUMPFTS

A

Mixture-Rich

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4
Q

P

GUMPFTS

A

Props Forward (best done at reduced power)

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5
Q

F-GUMPFTS

A

Flaps
Takeoff-10-15
Landing-15-38

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6
Q

T

GUMPFTS

A

Trim-set

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7
Q

S

GUMPFTS

A

Stick-Full aft for T/O or for getting onto step, ailerons right to counter torque

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8
Q

Vmc

A

78

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9
Q

Vyse

A

95

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10
Q

Ys

A

98

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11
Q

Vso

A

65

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12
Q

Vx

A

81

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13
Q

Vy

A

100

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14
Q

Vfe

A

104

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15
Q

Vlo/le

A

165

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16
Q

Vne

A

202

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17
Q

Cruise Climb

A

100

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18
Q

Va

A

102

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19
Q

Max Gross Weight

Land/Water

A

5400lbs

4700lbs

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20
Q

Basic Empty Weight

A

3816 seats

3825 devan

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21
Q

Useful Load

A

884lbs on water

1584 on land with seat config (9lbs with divan)

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22
Q

Fuel Capacity

A

108 gallons

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23
Q

Normal Fuel Consumption at Cruise

A

22gph

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24
Q

Two Engine Service and Absolute Ceiling

A

17,000’
18,200’
at 4700lbs

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25
Q

Single Engine Service and Absolute Ceiling

A

2800’
5700’
at 4700lbs

26
Q

Maximum Rate of Climb

A

1520 fpm at takeoff power

27
Q

Single Engine rate of climb at 4700lbs

A

196fpm

28
Q

Describe the Emergency Gear Extension Procedure

A

Position the gear selector, extend the pump handle and pump until the gear is all the way up or down. Pressure will rise and pumping will be hard when gear has reached desired position

29
Q

Describe the cross-feed Procedure

When do we need it?

A
  • Cross-feed should only be selected with only one tank selected on.
  • We only need x-feed if we need to extend single engine range or to balance the plane
30
Q

Immediate action item for an in-flight engine falure

A

Maintain airspeed and control. Mixtures, props, throttles forward, flaps up, gear up, identify, verify, feather, single engine checklist

31
Q

Under what conditions are Vmc determined?

10 items

A

Sea level, std day,critical eng windmilling, max power on good engine, flaps to takeoff, gear up, CG most adverse position, 5 degrees max bank into good eng, max gross weight, 150lbs rudder preasure

32
Q

What is the go-around procedure?

A

Max power, pitch up, flaps 10 degrees, gear up, after acceleration, flaps up

33
Q

Flap setting for normal takeoff on land/water

A

10 degrees for both

34
Q

What wave height is considered rough water?

A

When frequent whitecaps appear- approximate 1 foot depending on fetch length

35
Q

Which is the critical engine? why?

A

The left engine is critical

P-factor, torque, spiraling and accelerated slipstream

36
Q

Which engine has the generator?

A

Neither, both have alternators

37
Q

Where is the hydraulic pump located?

A

Under the pilot’s seat

38
Q

What is the normal hydraulic pump pressure in PSI?

A

650-950psi

39
Q

What is the hydraulic system capacity? Reservoir?

A

1 gallon

3/4 gallon

40
Q

What types of breaks do we have?
Where are the reservoirs?
What type of fluid?

A

Cleveland
Under the brake pedals
DOT #5 silicon fluid

41
Q

What is the air pressure for the tires?

A

Mains-40lbs, 25 when expecting to beach

Tail wheel is solid

42
Q

What precaution concerns the door and flaps?

A

Door closed before operating the flaps

43
Q

Describe the Hyd system with reference to the gear, how long to cycle, how long to hand pump

A

Electric hyd pump, closed system for flaps and gear, breaks are separate

  • At least 4 seconds
  • At least 24 stokes
44
Q

Describe the flap system and emergency extension

A

-Move the flap selector to set flaps then neutralize the handle to stop the movement. Do not use more than 30 degrees. If the flaps fail, check the pressure then use the hand pump to lower than.

45
Q

Describe the electric system

A

12 volt, 51 amp system

Alternators, 35 Amp hour battery

46
Q

Where are the batteries locatied

A

In the right wing outboard of the engine nacele

47
Q

What is a typical takeoff distance on land at 4700 lbs, to clear a 50-foot obstacle

A
  • 895’

- 1550’ standard day

48
Q

When measuring water distance at 90 knots, 1 second equals how many feet?

A

150’

49
Q

What type of engines

A

Continental O-470 240hp at 2600rpm

50
Q

How many drain plugs in the hull?

Wing Floats

A

13 in the hull
3 in each float
19 total

51
Q

How is the bilge pump operated

A

Leave the switch in auto unless the on position is required

52
Q

What is the recommended oil grade and quantity

A

12 quarts of aerosol 100W with a minimum of 9 quarts per engine

53
Q

What is the Max Flap extension

A

38 degrees

54
Q

How many psi is in the hydraulic system accumulator?

What is it’s purpose?

A
  • 200 lbs

- To absorb the hydraulic shocks that may occur in the system and to provide some reservoir of pressurized fluid

55
Q

Why is there a balance on the right elevator tab?

How does it work?

A

The balance tube acts as a stop for the trim tab as well as a balance for flutter

56
Q

Can you feather the prop at any time?

A

The props may not feather below 1000 RPM and will feather automatically with no oil preassure

57
Q

What type of Carburetor? How susceptible to icing is it?

A

-A pressure Carburetor and does not easily ice up but the induction system has an automatic alternate air source spring door

58
Q

How do we restart the engine in flight?

A

Use the normal starting procedure but bring the prop controls just out of feather in order to warm the engines slowly

59
Q

What part of the pre-landing checklist should we say out loud?

A

“This is water landing, gear up”

“This is a land landing, gear down”

60
Q

Too high of a a speed on water will cause what?

Why?

A

Tuck under will occur if you touch down too fast. The hull is drawn down and thrown up, possibly snapping the seaplane sideways destructively. Water drag increases by the square as the speed across the water increases

Seaplane Flying (3 decks)

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