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Flashcards in Hangar Deck (49)
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1
Q

What is the Datum?

A
Fuselage station (0,0) 
Determined by manufacturer
2
Q

What is Moment?

A

Weight x Station(Arm)

0 = balanced

3
Q

What is Tare Weight?

A

Any extra weight attached to the aircraft

Chocks and Jacks (Scales)

4
Q

What is the C of G?

A

Algebraic sum of nose and tail moments= 0 and C of G location is measured from datum

5
Q

High Wing fuel system?

A

Gravity Fed

6
Q

Low Wing fuel system?

A

Pump Fed

7
Q

Purpose of Crossfeed Valve?

A

Feed the left engine from the right fuel tank or vice versa

8
Q

Colour of 100 Low Lead?

A

Blue

9
Q

If there is water in the Fuel?

A

Drain the fuel until all the water is removed

10
Q

Hydraulic Fluid used in Oleo/landing gear/brakes?

A

5606 (Red)

11
Q

Colour of Nitrogen tank?

A

Black

12
Q

Colour of Oxygen tank?

A

Green for High pressure

Yellow for Low pressure

13
Q

Low Pressure Schrader Valve?

A

Used on small aircraft

SPRING loaded valve

14
Q

High Pressure Schrader Valve?

A

Used on large aircraft

OPEN the VALVE

15
Q

What is Station

A

Water Line
Butt Line
Wing Stations

16
Q

Calculation Question for Weight and Balance

No calculator

A

Given- Weight and Arm

Calculate- Moment and C of G

17
Q

If the arm is Aft of the datum, is the number positive or negative?

A

Positive

18
Q

What should you do before each flight?

A

Drain the fuel tank of water

19
Q

Where do you go to drain the water from the fuel tank?

A

Under the wing

20
Q

What is an Oleo?

A

a cylinder + a piston, always 5606,

21
Q

What high pressure gas is used for Oleo?

A

Nitrogen (Black)

22
Q

Why do we use Nitrogen for Oleo?

A

Does not expand/contract in ref. to temperature

Does not contain water

23
Q

Which one do you put first air or fluid for the Oleo?

A

Hydraulic Fluid

24
Q

Where do you put the fluid and the gas for Oleo?

A

Through a schrader valve

25
Q

What are the 2 ways of putting fluid into the Oleo?

A
squirt can (schrader valve off)
suction method
26
Q

How much psi do you need to lift the airplane?

A

1000psi

27
Q

How much chrome can be showing when servicing Oleo?

A

4 fingers

28
Q

For turnbuckle/props what size lock wire do we use?

A

0.041 unless stated otherwise

29
Q

If it is bottomed out and not showing any chrome, what does it need?

A

Req. Nitrogen

30
Q

If the airplane is bouncy, what does it need?

A

Hydraulic fluid needed

31
Q

Skydrol colour?

A

Purple

32
Q

Number of turns per inch? (Lock Wire)

A

8 turns per inch

33
Q

End turns on a turnbuckle should be at least

A

4-8 turns

34
Q

What is the red dot for on a tire and whats it for?

A

The lightest part of the tire

Line up valve with it to cancel weight out

35
Q

What kind of bearings are used on the wheels?

A

Angled Roller bearings (Tapered)

36
Q

What should you put when you put a tube inside a tire

A

Baby Powder prevents the rubber from sticking

37
Q

How to measure diameter of a hole, such as a piston pin bosses?

A

Telescoping gauge + Micrometer

38
Q

If using 0.032 for turnbuckle, what do you do?

A

Double it up

39
Q

For tires and wheels, what size did we use and what are they used for?

A

500 by 5

used on Nose Wheels

40
Q

Know how to read Micrometer and vernier caliper

A

Know how to read Micrometer and vernier caliper

41
Q

Piston?

A

??

42
Q

Piston rings?

A

??

43
Q

First thing you when changing a tire?

A

Deflate/ take out air pressure

44
Q

What does toe in/out mean?

A

Wheel alignment

Needs to be perfectly parallel

45
Q

What is camber?

A

When the wheels are cambered out/in

46
Q

For outside dimensions what measurement tool do we use?

A

Micrometer

47
Q

How to measure depth of a hole?

A

Vernier calipers

48
Q

How do you measure a piston diameter?

A

90 degrees from the bosses

49
Q

Fwd journal, Middle journal, rear journal, which one is closest to the flange for the prop?

A

Fwd main journal