Night Aided (NA) General

Question 1

Explain Arcs of responsibility:

Answer 1

LHS pilot: 8 o’clock to 1 o’clock
RHS pilot: 4 o’clock to 11 o’clock

Question 2

During the hover, what are the major differences under goggles?

Answer 2

• Nil peripheral vision
• Scan often to 2 o’clock for drift/lateral positioning

Question 3

What is the VMC criteria for NVG operation?

Answer 3

Aircraft operating in class C may operate clear of cloud, otherwise no change

Question 4

Explain recovery planning requirements by night?

Answer 4

There are three levels of ‘conditions’ each level has its own recovery planning consids:

Normal conditions:
- Forecast and actual = 1000ft cloud base (AGL) and 3000m vis
- Nil recovery plans

Limited Conditions:
- Forecast/actual allows for flight clear of cloud, in sight of ground/water at all times, 800m vis and at a speed above to avoid obstacles
- Forecast/actual must allows visual recovery at the instrument approach minima or if nil available enroute LSALT

Poor conditions:
- Forecast/actually unable to maintain above weather minima
- Nil take-off/if airborne fly IAW IMC recovery plan (alternates should be planned)

Question 5

What additional detail is provided to ATC and when during NA ops?

Answer 5

The addition of “NVD” to any clearance is required e.g. TXX, POB X, REVD X, NVD for the CIRA, request taxi via blah”

Question 6

Explain FOV vs FOR

Answer 6

FOV = the width of light that the goggles can absorb and provide to the pilot
FOR = The area of vision that the pilot it able to see by moving their head and eyes (Should be the same as by day)

Question 7

Explain scanning ‘through’, ‘with’ and ‘under’?

Answer 7

Through: Scanning within the NVD image itself, is the primary scan
With: Moving the head and eyes around the whole FOR with a slow and deliberate head movement
Under: Scanning under the goggles to sight the instruments/view light colours

Question 8

Explain eyes in/out:

Answer 8

Eyes in: Is used when a crew member is looking inside the aircraft for an extended period of time
- Other crew respond with “I have the scan” to accept responsibility for their scan region

Question 9

When does the IR search light get switched off?

Answer 9

Once turned on it does not get switched off

Question 10

Explain the relationship between height and scan technique?

Answer 10

As the aircraft gets closer to the ground, it is better to scan more to the outside of the aircraft rather than to the inside, therefore lower flight is closer to that of a GF scan while high altitudes lean more to an IF scan

Question 11

What techniques are especially important by night regarding CAs?

Answer 11

Pick features to fly over
ALWAYS setup a double bar pointer needle (get a mark as req)
Pick run in features to the CA e.g. up the river, LHS of the road etc)