User:Warty: Difference between revisions
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This has now been moved t: [[Howto:Carrier_Landing_Assistant_in_HUD]]--[[User:Warty|Warty]] ([[User talk:Warty|talk]]) 13:24, 30 December 2015 (EST) | This has now been moved t: [[Howto:Carrier_Landing_Assistant_in_HUD]]--[[User:Warty|Warty]] ([[User talk:Warty|talk]]) 13:24, 30 December 2015 (EST) | ||
== | == Interpreting the Display == | ||
[1] is the bearing to the carrier (226) and so, with the current heading of 249, it is off to the left. Within about +/- 30 degrees of the aircraft centreline the carrier symbol will show up at the top of the HUD (see [6]). | |||
[2] is the heading of the landing deck, which in this case is defined as 8 degrees to the left of the carrier's heading. | |||
[3] is the down angle to the carrier. The "''needle''" is set to align with "''Centre''" at 3 degrees. | |||
[4] is the offset angle between [1] and [2]. The "''needle''" is set to align with "''Centre''" when they are equal. The idea is to give a steer to get on the approach centreline to the landing deck. | |||
[5] is the difference in headings between that of the aircraft and the landing deck. This angle is also shown graphically in [6]. It indicates how much of a turn is required once the centreline of [4] is acheived. | |||
[6] is a graphical representation of the carrier location and orientation. In this example it is off to the left and the landing deck is even further to the left. This would imply a gentle sweep to the left is required for the approach. | |||
Ideally (with a stationary carrier and no wind) the perfect approach would be where Heading == BrgTo == DeckHg (so RelHdg == 0). But with the carrier moving away and a wind it will be unlikely to be that simple. | |||
Revision as of 20:16, 30 December 2015
ILS in HUD
This has now been created as ILS in HUD --Warty (talk) 04:02, 30 December 2015 (EST)
Carrier Landing Assistant in HUD
This has now been moved t: Howto:Carrier_Landing_Assistant_in_HUD--Warty (talk) 13:24, 30 December 2015 (EST)
Interpreting the Display
[1] is the bearing to the carrier (226) and so, with the current heading of 249, it is off to the left. Within about +/- 30 degrees of the aircraft centreline the carrier symbol will show up at the top of the HUD (see [6]).
[2] is the heading of the landing deck, which in this case is defined as 8 degrees to the left of the carrier's heading.
[3] is the down angle to the carrier. The "needle" is set to align with "Centre" at 3 degrees.
[4] is the offset angle between [1] and [2]. The "needle" is set to align with "Centre" when they are equal. The idea is to give a steer to get on the approach centreline to the landing deck.
[5] is the difference in headings between that of the aircraft and the landing deck. This angle is also shown graphically in [6]. It indicates how much of a turn is required once the centreline of [4] is acheived.
[6] is a graphical representation of the carrier location and orientation. In this example it is off to the left and the landing deck is even further to the left. This would imply a gentle sweep to the left is required for the approach.
Ideally (with a stationary carrier and no wind) the perfect approach would be where Heading == BrgTo == DeckHg (so RelHdg == 0). But with the carrier moving away and a wind it will be unlikely to be that simple.