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The Ultimate Contact Guide > Dash 1 Section 7 > Flashcards

Dash 1 Section 7 Flashcards

1
Q

If you must fly through a thunderstorm how should you prepare?

A

Lock harness, make sure PROBES is on, tighten lap belt, and stow loose items.

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2
Q

How can you deal with lightning flashes?

A

Look at the instrument panel only and set instrument lighting to max.

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3
Q

What is the recommended penetration airspeed?

A

180 KIAS

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4
Q

What is the max penetration airspeed?

A

195 KIAS.

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5
Q

How should you fly in a thunderstorm?

A

Set an attitude, let altitude vary, set power to keep turbulent penetration airspeed. Don’t overcorrect, make minor adjustments.

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6
Q

What is wind shear?

A

A dramatic change in wind speed or direction over a short distance.

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7
Q

What classifies severe wind shear?

A

VSI changes greater than 500 fpm or airspeed changes greater than 15 knots

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8
Q

What’s a microburst?

A

A dangerous type of windshear. They usually only last 2-5 minutes, and are 2 miles in diameter. There have been measured downdrafts in excess of 6000 fpm.

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9
Q

What may be some indications of windshear?

A

Thunderstorm activity, gust front, temperature inversion passages, Virga, PIREPS, and low level wind shear alerts (LLWAS).

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10
Q

What are some windshear takeoff precautions?

A

Use takeoff flaps and the longest runway. Delay rotation until 10 knots higher than normal rotation speed. Once airborne do not accelerate to higher than normal climb airspeed because a lower pitch attitude may be a problem if windshear is encountered.

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11
Q

What are some precautions you should take for windshear approach?

A

T/O flaps and fly up to 10 knots faster; stabilize approach prior to descending below 10,000’ AGL. Avoid large power or airspeed changes. Be prepared to go-around.

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12
Q

Cloud to cloud lightning has been observed traveling up to what distances?

A

50 miles. With a greater potential near freezing level.

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13
Q

What is heated by the ANTI-ICE PROBES switch?

A

AOA sensor and pitot system.

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14
Q

How is the fuel system protected from icing?

A

External fairings prevent icing on the vent ports.

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15
Q

The aircraft has been approved for transit through what icing?

A

A 5,000’ band of light rime.

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16
Q

Aerobatics after icing are prohibited until icing is gone. What is allowed with icing?

A

1) . Maneuvers up to 30 deg bank

2) . 0-2.0 Gs normal acceleration

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17
Q

With ice accumulation landing speeds should be increased up to what?

A

10 KIAS

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18
Q

What’s the only method of deicing the canopy?

A

Heating with a max temperature of 150 deg F on the transparency.

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19
Q

What are the deicing methods and the only approved deicing agent?

A

Blowing, wiping, spraying. Propylene glycol (AMS 1424, Type I) diluted by water is authorized for spraying on the T-6 as a last resort.

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20
Q

What’s a caution you should be aware of regarding surfaces coated with deicing agent?

A

Don’t touch them because they soften when exposed to fluid above freezing temps.

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21
Q

The aircraft must be washed within how many days of using AMS-1424/deicing? How about if exposed to runway anti-icing/deicing materials?

A
  1. Rinsed in clean water within 48 hours.
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22
Q

Where should special care be exercised with deicing fluids?

A

Ram air intake duct to minimize potentially toxic fumes entering the cockpit prior to takeoff.

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23
Q

What is a caution to be aware of with deicing fluid and the canopy?

A

Prevent them from coming in contact with one another as it could cause damage to the canopy and windshields.

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24
Q

True/False. The brakes can hold the aircraft on snow covered or icy runways with the PCL at MAX.

A

False.

25
Q

After takeoff from a runway covered with snow or slush what should you do?

A

Cycle the gear and flaps several times to prevent freezing and operate the brakes to expel wet snow or slush.

26
Q

When does the potential for icing exist?

A

If the aircraft is operated in visible moisture at air temps of 5 deg C or below.

27
Q

Where will ice first form on the aircraft?

A

Windshield and wing leading edges.

28
Q

If ice is encountered what should you do?

A

Ascend/descend out of the icing band. Make sure PROBES is ON, defog ON, temp controller MANUAL, and evap blower to HIGH.

29
Q

What should you perform prior to landing if you have ice accumulation?

A

A controllability check.

30
Q

Hydroplaning can occur in less than how many inches of water/slush?

A

0.1.

31
Q

What can you do to improve braking and reduce chance of hydroplaning?

A

Select flaps to UP immediately on touchdown to increase WoW.

32
Q

What are the two primary factors of hydroplaning?

A

Ground speed and tire pressure.

33
Q

Hydroplaning does what to aircraft control and braking?

A

Reduced coefficient of friction which lessens braking and steering effectiveness and crosswind control.

34
Q

True/False. Applying brake pressure to tires which have slowed or nearly stopped because of hydroplaning will improve the coefficient of friction.

A

False.

35
Q

At high ground speeds on a wet runway braking effectiveness is what of normal?

A

1/3rd. 1/5th for slush.

36
Q

What factors may affect the start, extent and duration of hydroplaning?

A

Tire tread depth and design, depth of water, roughness of runway surface, tire inflation pressure, and aircraft ground speed.

37
Q

What does a crowned runway do?

A

Enable water to drain more effectively and prevents deep accumulation thus reducing hydroplaning.

38
Q

Minimum total hydroplaning speed is dependent on what?

A

Tire inflation pressure. Higher pressure, less chance of hydroplaning.

39
Q

How do you calculate hydroplaning speed in knots?

A

Divide hydroplaning speed in mph by 1.15 -___-

40
Q

When can hydroplaning occur for the nose tire and main tires?

A

Above 85 knots for the nose tire.

Above 115 knots for the main tires.

41
Q

When is preheating of the engine recommended?

A

Extreme cold (below -29 deg C)

42
Q

What amp draw may be expected during engine starts in extreme cold?

A

To the limit of -50 A.

43
Q

A ground power unit (GPU) is recommended for starts below what temperature?

A

-18 deg C.

44
Q

What may occur with oil pressure in cold conditions?

A

High oil pressure and OIL PX annunciator may illuminate after start.

45
Q

When should oil pressure be at an acceptable range following a cold start?

A

2 minutes

46
Q

With the bleed air on at cold temperatures what may occur?

A

There may be a higher airflow and cockpit pressure in an attempt for the ECS to regulate cockpit pressure.

47
Q

What else besides high oil pressure may occur in low temperature conditions?

A

OBOGS FAIL. There must be 3 minutes of continued OBOGS without failure of the BIT prior to takeoff

48
Q

What’s a caution regarding turning on the digital instruments?

A

Turning them on at OATs below -21 deg C may shorten the instrument service life. Make sure they have warmed up prior to turning them on.

49
Q

What’s a caution regarding taxiing through hard packed snow or ice?

A

Painted areas are more slippery than unpainted areas when wet. NWS may not be completely effective

50
Q

To stop moisture from entering the fuel system in cold conditions what should you do?

A

Park with full fuel tanks if possible and install protective covers.

51
Q

Why should you park in hangars in cold conditions?

A

Ice may accumulate on the ventral fin causing the aircraft to settle on the tail which will damage the aircraft.

52
Q

What are some of the difficulties encountered in hot weather ops?

A

High ITT during start, overheating brakes, high oil temp at IDLE, longer takeoff and landing rolls, and moisture condensation on the aircraft. Also damage to rubber/plastic.

53
Q

Extended exposure to high temperatures without installing sun shields could cause what?

A

Exceeding avionics storage temperature and premature avionics failures.

54
Q

How should you clean the transparencies?

A

Use a light coat of plastic polish. Don’t clean dirt or dust on a dry transparency and remove jewelry and watches beforehand.

55
Q

What should you never use on the canopy?

A

Gasoline, benzene, acetone, tetrachlorode, fire extinguisher, anti-ice fluid, lacquer thinner or glass cleaner.

56
Q

How should you taxi in desert/hot weather ops?

A

Minimum power to reduce blowing of sand and prop/canopy damage and brakes as little as possible.

57
Q

What should you expect about takeoff and IAS in hot weather ops?

A

Longer ground roll, less acceleration, ground speed increased for the same IAS when compared to cooler temp ops.

58
Q

How can you achieve the best cockpit cooling below 7500’ MSL?

A

Set RAM AIR switch to OFF.

The Ultimate Contact Guide (12 decks)

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