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CH-47 (9.4) > TC 3-04.5 > Flashcards

TC 3-04.5 Flashcards

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1
Q

Dynamic pressure is the difference between _____/______ pressure and ______ pressure.

A

Ambient/ static

Ram

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2
Q

What DoD document requires a magnetic compass for all flights?

A

AR 95-1

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3
Q

_______ ________ ___________ is the basis for aircraft control during instrument flying.

A

Proper instrument interpretation

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4
Q

_______ instruments display immediate attitude and power indications.

A

Control

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5
Q

________instruments indicate an aircraft’s actual performance.
(Give 4 examples)

A

Performance

Airspeed indicator, altimeter, VSI, heading indicator

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6
Q

What are the three fundamental skills an aviator requires during instrument flight?

A

Instrument cross check
Instrument interpretation
Aircraft control

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7
Q

1 nautical mile per hour is equal to _______ miles per hour.

A

1.15

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8
Q

Low altitude enroute charts are intended for use up to, but not including ____________ feet MSL.

A

18,000’

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9
Q

Define MEA

A

Minimum Enroute Altitude.

Lowest published altitude between radio fixes that ensures acceptable navigational signal coverage and meets obstacle clearance requirements between the two fixes.

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10
Q

Define MOCA

A

Minimum Obstruction Clearance Altitude

Same clearance as an MEA, but only guarantees coverage within 22NM of a radio fix

Lowest published altitude between radio fixes, off-airway routes, or route segments that meets obstacle clearance requirements for the entire route segment and only ensures signal coverage within 22NM of a NAVAID

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11
Q

What does MRA stand for?

A

Minimum Reception Altitude

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12
Q

What does MCA stand for?

A

Minimum Crossing Altitude

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13
Q

What does MAA stand for?

A

Maximum Authorized Altitude

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14
Q

Define OROCA

A

Off Route Obstruction Clearance Altitude

Provides obstacle clearance within 4NM of a route of 1,000’ in non mountainous terrain, and 2,000’ in designated mountainous areas of the United States.

Does NOT guarantee any signal coverage

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15
Q

You are planning an IFR flight and while planning an approach, need to find out if the NAVAIDs associated with the approach are monitored or not.

  • What would be the two primary methods of finding this information?
  • Why is it important?
A
  • IFR Supplement and NOTAMs

- If unable to apply the VFR Exception rule in regards to an approach, you will need to plan on for an alternate.

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16
Q

When planning to land at an alternate location during an IFR flight, how do you determine how much fuel and time is required?

A

Start planning from the MAP of your primary, executing the missed approach procedure, doing one turn in holding, then proceeding directly to the IAP/IAF of an approach at your alternate, and landing to the runway.

IFR reserve is not included in the calculation.

17
Q

Under what conditions is a procedure turn not required?

A
  • No PT is depicted
  • radar vectoring to final
  • PT is not authorized

contact ATC when in doubt

18
Q 
What are the air speeds associated with the aircraft approach categories?
Which category(s) can army aviators reduce the minimums for?
A 
A) 0-90 knots
B) 91-120
C) 121-140
D) 141-165
E)  >165

minimums can be reduced for Cat A ONLY (including the presence of a COPTER approach)

19
Q

How much can visibility minimums be reduced for instrument-equipped helicopters?

A

Reduced by 1/2 the published minimums but no less than 1/4 SM or 1,200 RVR

Reduction of COPTER approaches is not authorized

20
Q

Clouds with vertical development-such as cumulus, towering cumulus and cumulonimbus-are indicators of what?

A

Atmospheric instability and possible turbulence

21
Q

If necessary, an aviator flying in turbulence may request what from ATC?

A

A Block Altitude Clearance

22
Q

What is precipitation static and what is its most common cause?

A

Distortions of radio waves that interfere with normal reception

Caused by static electricity generated on the various aircraft surfaces in flight that are discharged onto other surfaces and/or the air

23
Q

What is the accuracy of a VOR?

A

+/- 1 degree, no more than 2.5 degrees

24
Q

IFR flight will not be attempted if there is a VOR error of :

A

+/- 4 degrees on ground

+/- 6 degrees while airborne

25
Q

Reliable DME signals can be received up to _____ nautical miles at ________ ___ ________.

A

199 NM

Line of sight altitude

26
Q

For CH47 pilots, when may GPS be used as a substitute for ADF, VOR, and DME receivers?

A
  • flying a DME arc
  • flying to or from an NDB or VOR
  • determining aircraft position over NDB or VOR
  • determining position over a fix defined by NDB bearing crossing a VOR course
  • holding over NDB or VOR
27
Q

The aviator is required to request an amended clearance if ATC issued a clearance that :______________?

A

Would cause an aviator to deviate from a rule or regulation or place the aircraft in jeopardy.

28
Q

Describe a Diverse Departure

A

Climb runway heading to 400’ above departure end of runway, then turn direct to the first filed point and climb to appropriate altitude unless clearance specifies other instructions

29
Q

Position reports given to ATC should contain the following items:

A
  • ID
  • position
  • time
  • altitude
  • Type of flight plan
  • next reporting point and ETA
  • name of the next succeeding point along flight route
  • pertinent remarks
30
Q

If an inadvertent thunderstorm is encountered, is it typically better to maintain the current course or to execute a course reversal?

A

Maintain current course ; turning maneuvers could extend the time in the storm and will place greater stress on aircraft components.

  • inadvertent thunderstorm encounters are not typically large storm cells*
  • request assistance from ATC before an actual distress or emergency condition develops*
31
Q

If an aviator experiences icing conditions, they should attempt to move to an area of known non-icing conditions, areas clear of visible moisture, or to altitudes that are _______ or _______ degrees Celsius.

A

Below -20 degrees Celsius
Or
Above 5 degrees Celsius

32
Q

What is the recommended wind drift correction on the outbound leg of a holding pattern?

A

Three times the correction of the inbound leg in the opposite correction

CH-47 (9.4) (48 decks)

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