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Viper Waypoints being slewed by Cursors (TGP, DTOS etc)


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Posted

When I slew the TGP it moves the actual STPT and leaves it at the new location at the same altitude but at the lat long of where the TGP view was centered on. It also happens with any hud cursors as well. It isn't just offsetting the view off of this and all other STPTs, it is actually moving the steerpoint. 

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Posted (edited)

Hi,

This behaviour has been explained in another thread

  

On 10/28/2023 at 2:09 PM, Raptor9 said:

This behavior is how the cursor slews work. When applying a cursor slew to the navigation cursor, it doesn't move the navigation position of the aircraft or the steerpoints (unless you are doing a Fix); it just moves the SPI and applies a delta to the symbology to match this cursor slew. This delta is applied to all steerpoints at once. After a slew is applied, you must use Cursor Zero to remove the accumulated cursor deltas.

So if you slew the TGP 500 meters west of steerpoint 1, as you sequence through each steerpoint the SPI will be 500 meters west from each steerpoint. If you press Cursor Zero (CZ), this slew is removed.

 

On 10/30/2023 at 2:42 PM, Lord Vader said:

Hi again @boerdi

We have reviewed your track and video and it appears you are remaining in the VIS mode while trying to press CZ. When doing so, the command sends VIS to the pre-designate mode, caging the TD box to the FPV. The TGP will just follow the SPI. This is intended behaviour. 

If you wish to remove the deltas of the navigation cursor that were incurred after designation to return the steerpoint symbol to its original location, you must enter CCRP or PRE and then press CZ. This is also intended behaviour. CZ only zeroes the cursor that is active for a given mode. In VIS or DTOS mode, CZ zeroes the VIS cursor, but not the navigation cursor.

 

 

Source:

 

 

Edited by boerdi
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