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Howto:Carrier Landing Assistant in HUD: Difference between revisions
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Howto:Carrier Landing Assistant in HUD (view source)
Revision as of 20:33, 30 December 2015
, 30 December 2015→Interpreting the Display
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[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. | [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. This is showing that aircraft needs to go down to get onto the glide-slope. | [3] is the down angle to the carrier. The "''needle''" is set to align with "''Centre''" at 3 degrees. This is showing that aircraft needs to go '''down''' to get onto the glide-slope. | ||
[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. This is showing that | [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. This is showing that the aircraft needs to head to the '''right''' to intersect the approach line of the landing deck (even though the carrier is off to the left - see [1]). | ||
[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. | [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. | [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, once the approach line of the landing deck has been intersected (see [4]). | ||
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. | 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. Basically, a lot is going on here and so a good deal of spacial awareness is required. | ||
== The Canvas graphics elements == | == The Canvas graphics elements == | ||