[NO BUG] Stored INS after taxi

[Bankler]

Problem:

• Waypoints can get the wrong positions if you taxi on deck before starting alignment
  

 

Repro:

1. Make sure "INS Reference Alignment Stored" is selected for your F-14.
   
2. Spawn cold on Stennis.
   
3. Start engines (do not arm ejection seat, otherwise Jester will start aligning already)
   
4. Taxi to another spot on the carrier, making sure your nose is pointing somewhere else compared to the spawn point rotation (for instance, make a 90 degree turn).
   
5. Engage parking brake and arm ejection seat, and continue with the full startup.
   
6. Make sure it says "ASH" in the VDI, so you know the stored heading is used.
   
7. After taking off, notice that all waypoint are now in the wrong places (they are rotated around you, the amount you turned on deck), making it impossible to use them for navigation.
   

 

Remarks:

• The reason you might want to taxi before you align, is to make room for fellow players to spawn in (avoiding spawn collisions, and "flight delayed" problems, which is a mess when you are more than around 10 players).
  
• I'm not completely sure if this is a bug or if this is how it would actually work?
  
• If you don't turn while you taxi (just rolling straight forward), you'll be fine.
  
• If you don't use "INS Reference Alignment Stored" you'll be fine (but alignment will take 9 minutes or so).
  

Edited April 14, 2019 by IronMike

[Bankler]

After some discussion with buddy of mine, I guess all this does makes a lot of sense. If the stored heading merely is a heading saved on the aircraft memory, it surely makes sense that stuff will be rotated if you manually rotate the aircraft before starting the ASH alignment process. If this is correct, pretty sweet work on simulating that! :thumbup:

[IronMike]

Affirmative. Our INS is simulated down to the smallest of mistakes and issues and intricacies. If a SH alignment was performed, note that after a reference heading had been stored in the INS, the aircraft literally got tied down, so that not the slightest of movement would occur, due to the sensitive nature of the INS (gyros, etc). So in general, moving during alignment is a bad idea, with a stored heading alignment moving before alignment basically means moving "during" alignment and is an even worse idea.