Looking for a real spitfire compass deviation card, anyone?

[Lau]

Folks,

I have been testing the DCS spitfire compass deviation and would like to just have a look at a real spitfire deviation card to see the deviation pathern. I realize results will vary from one bird to the other. but still.

If anyone have access to the real bird or already have a picture available that would be awesome!

You can also share your results here, so hopefully we also get a compass deviation card in our virtual spitfire (topic will later be moved to the whish list).

To start off, here is what I actully see in DCS:

SPITFIRE MK IX		Date
Aircraft		JUNE 6TH 1944
Cmp
C to M		M to C
-1°00'	000°	+1°00'
+2°00'	10° - 20°	-2°00'
-2°00'	30° - 170°	+2°00'
-4°00'	180°	+4°00'
+2°00'	190° - 210°	-2°00'
-2°00'	220° - 260°	+2°00'
0°00'	250°	0°00'
+1°00'	270°	-1°00'
0°00'	280° - 320°	0°00'
+4°00'	330°	-4°00'
+1°00'	340° - 350°	-1°00'

Cheers,

Lau

 

 

Edited November 9, 2023 by Lau

[Lau]

Compass deviation is so sensitive that the Spitfire has two compass deviation cards. One standard compass deviation and a second one when a jettison tank is fitted.

Interesting enough the Spitfire ED manual states "Two deviation cards are installed in the middle of the lower part of the dashboard: to the left is the compass for use with a suspended fuselage tank, while the right one is for use without an external tank." Something that was left behind by the dev team.

As shown above the ED Spitfire compass is subject to deviations, it is therefore simulated, we are only missing the deviation cards as per below picture with the correct values for DCS as given in my initial post.

If the compass magnetic field deviates from a jettison tank,it will also deviate with  iron bombs.

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Edited November 13, 2023 by Lau