PLAT deck camera crosshair is too low

[mattag08]

The PLAT cam crosshair is aligned with an approximately 3.2° glidepath while the Base Angle (B/A) of the boat is set (supposedly) to 3.5°. This leads to an issue for LSOs attempting to provide accurate glidepath information.

 

The crosshair is depressed via a function in the PLATCameraUI.lua. This function has the variable d_pixel which is returning a value of approximately 28 pixels of depression for the crosshair. The actual accurate depression is approximately 10 pixels for the 3.5° glidepath.

 

I believe that the developer may have unintentionally looked at the NATOPS (which talks about B/A vs. the actual glidepath flown) and become confused. The aircraft may fly a glidepath of less than 3.5° through the air, but he will always be at the B/A relative to the ship if he is on glidepath. It appears in the .lua file that there was an attempt to calculate wind over deck and other such things to arrive at the aircraft's approximate actual glidepath, but this is incorrect and unimportant for the PLAT camera and the crosshair.

 

I uploaded the .lua code that is incorrect, an image of where the crosshairs used to be with an F-14 with a centered ball indication, and an image of where the crosshairs should be for a centered ball indication after I corrected them. This is no different for an F-14 vs. F-18 (except that hook height over deck should be adjustable by aircraft type, but since it is not everything is the same for now).

[mattag08]

Bump for response from ED.

Edited June 5, 2020 by mattag08