Nav Update and Ship controlled approach

Question 1

What are the different approaches required the ship to be steady on the flying course at different ranges:

Visual
Contact Circuit
SCA
HCA
ELVA

Answer 1

Visual - By the pilots limiting visibility
Contact circuit - 2 minute to Charlie time
SCA - 1nm
HCA - 1nm
ELVA - 3nm on course but not speed

Question 2

What are the conditions where a controlled approach is madatory?

Answer 2

In visibility less than 1.5nm but greater than the pilot’s limiting visibility (in conditions where visibility is less than the pilots limiting visibility an ELVA or HCELVA will be required).

First night approach to a class of ship (conventional or Night vision device (NVD))

The first approach to any ship by night, when flyign conventionally, if the pilot has not conducted a night conventional deck landing within the last 4 week.

Question 3

What is the definition for limiting visibility?

Answer 3

The range at which the pilot must be able to see sufficient of the ship by day, or the appopriate approach/landing aid by night, to enable a safe Approach to be made and a successful landing carried out.

Question 4

What is the definition of Pigeons?

Answer 4

Pigeons are the true/magnetic compass bearing and distance to base, unit, indicated position. Aircraft controllers are to specify pigeons as true or magnetic.

Question 5

What are the reasons for mandatory overshoot?

Answer 5

Pilot is not on sight at limiting visibility

Loss of two way communications

Loss of radio/radar (SCA/HCA)

Ship not steady on flying course at the required range

Pilot not visual on a visual recovery

Question 6

When can the position of outhouse be corrected?

Answer 6

The discrepancy is identified within the command system - If WECDIS and the aircraft correlate, then the position of outhouse within the command system is to corrected if all parties agree

The discrepancy is identified within WECDIS - If the command system and the aircraft correlate then WECDIS can be correlated if all parties agree.

The discrepancy is identified in the aircraft - The aircraft is to return to the ship or the following should be considered by command - CMD priorities

• Endureance remainning
• Distance from the ship and/or suitable diversion
• Aerodromes
• Meteorological conditions
• Aircrew feedback

Question 7

What are the considerations of wether an aircraft has to return following a discrepancy in the Outhouse:

Answer 7

• CMD priorities
• Endureance remainning
• Distance from the ship and/or suitable diversion
• Aerodromes
• Meteorological conditions
• Aircrew feedback