Grumman Widgeon Flashcards
1
Q
G
GUMPFTS
A
GAS-on, X-Feed off
only two levers are to be on at the same time
2
Q
U
GUMPFTS
(5 items)
A
-Undercarriage -
Water-Up-Land-Down
Handle, Light, Hydraulic Pressure, mirror, locks
3
Q
M
GUMPFTS
A
Mixture-Rich
4
Q
P
GUMPFTS
A
Props Forward (best done at reduced power)
5
Q
F-GUMPFTS
A
Flaps
Takeoff-10-15
Landing-15-38
6
Q
T
GUMPFTS
A
Trim-set
7
Q
S
GUMPFTS
A
Stick-Full aft for T/O or for getting onto step, ailerons right to counter torque
8
Q
Vmc
A
78
9
Q
Vyse
A
95
10
Q
Ys
A
98
11
Q
Vso
A
65
12
Q
Vx
A
81
13
Q
Vy
A
100
14
Q
Vfe
A
104
15
Q
Vlo/le
A
165
16
Q
Vne
A
202
17
Q
Cruise Climb
A
100
18
Q
Va
A
102
19
Q
Max Gross Weight
Land/Water
A
5400lbs
4700lbs
20
Q
Basic Empty Weight
A
3816 seats
3825 devan
21
Q
Useful Load
A
884lbs on water
1584 on land with seat config (9lbs with divan)
22
Q
Fuel Capacity
A
108 gallons
23
Q
Normal Fuel Consumption at Cruise
A
22gph
24
Q
Two Engine Service and Absolute Ceiling
A
17,000’
18,200’
at 4700lbs
25
Single Engine Service and Absolute Ceiling
2800'
5700'
at 4700lbs
26
Maximum Rate of Climb
1520 fpm at takeoff power
27
Single Engine rate of climb at 4700lbs
196fpm
28
Describe the Emergency Gear Extension Procedure
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
Describe the cross-feed Procedure
| When do we need it?
- 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
Immediate action item for an in-flight engine falure
Maintain airspeed and control. Mixtures, props, throttles forward, flaps up, gear up, identify, verify, feather, single engine checklist
31
Under what conditions are Vmc determined?
| 10 items
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
What is the go-around procedure?
Max power, pitch up, flaps 10 degrees, gear up, after acceleration, flaps up
33
Flap setting for normal takeoff on land/water
10 degrees for both
34
What wave height is considered rough water?
When frequent whitecaps appear- approximate 1 foot depending on fetch length
35
Which is the critical engine? why?
The left engine is critical
| P-factor, torque, spiraling and accelerated slipstream
36
Which engine has the generator?
Neither, both have alternators
37
Where is the hydraulic pump located?
Under the pilot's seat
38
What is the normal hydraulic pump pressure in PSI?
650-950psi
39
What is the hydraulic system capacity? Reservoir?
1 gallon
| 3/4 gallon
40
What types of breaks do we have?
Where are the reservoirs?
What type of fluid?
Cleveland
Under the brake pedals
DOT #5 silicon fluid
41
What is the air pressure for the tires?
Mains-40lbs, 25 when expecting to beach
| Tail wheel is solid
42
What precaution concerns the door and flaps?
Door closed before operating the flaps
43
Describe the Hyd system with reference to the gear, how long to cycle, how long to hand pump
Electric hyd pump, closed system for flaps and gear, breaks are separate
- At least 4 seconds
- At least 24 stokes
44
Describe the flap system and emergency extension
-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
Describe the electric system
12 volt, 51 amp system
| Alternators, 35 Amp hour battery
46
Where are the batteries locatied
In the right wing outboard of the engine nacele
47
What is a typical takeoff distance on land at 4700 lbs, to clear a 50-foot obstacle
- 895'
| - 1550' standard day
48
When measuring water distance at 90 knots, 1 second equals how many feet?
150'
49
What type of engines
Continental O-470 240hp at 2600rpm
50
How many drain plugs in the hull?
| Wing Floats
13 in the hull
3 in each float
19 total
51
How is the bilge pump operated
Leave the switch in auto unless the on position is required
52
What is the recommended oil grade and quantity
12 quarts of aerosol 100W with a minimum of 9 quarts per engine
53
What is the Max Flap extension
38 degrees
54
How many psi is in the hydraulic system accumulator?
| What is it's purpose?
- 200 lbs
| - To absorb the hydraulic shocks that may occur in the system and to provide some reservoir of pressurized fluid
55
Why is there a balance on the right elevator tab?
| How does it work?
The balance tube acts as a stop for the trim tab as well as a balance for flutter
56
Can you feather the prop at any time?
The props may not feather below 1000 RPM and will feather automatically with no oil preassure
57
What type of Carburetor? How susceptible to icing is it?
-A pressure Carburetor and does not easily ice up but the induction system has an automatic alternate air source spring door
58
How do we restart the engine in flight?
Use the normal starting procedure but bring the prop controls just out of feather in order to warm the engines slowly
59
What part of the pre-landing checklist should we say out loud?
"This is water landing, gear up"
| "This is a land landing, gear down"
60
Too high of a a speed on water will cause what?
| Why?
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
