Me 262 Question

[JFS4_Eisbaer]

Does anyone know why this switch was fitted to the Me 262?
 

 

[JFS4_Eisbaer]

Found it.

 

 

[LukeFF]

So what is it exactly?

[Heliopause]

Its to put the aircraft level when jacked up. Using ruler (No 1) resting on the markers No 2 and 4 first. Followed by the ruler put on the markers No 4.

(its not a switch).

[Aapje]

Yes, it's for the workshop, not for the pilot.

[JFS4_Eisbaer]

These are riveted-on measuring points that were used during the final assembly of the aircraft at the manufacturer's factory, for example to place a spirit level across the cockpit so that the fuselage is level during wing assembly or when determining the centre of gravity. As the fuselage, wings and tail unit assemblies were manufactured at different production facilities, rework was still required during final assembly.
Such setup marks also existed on other aircraft types. The attached photo shows an inspector with a spirit level on a Ju 87. The second photo shows such set-up marks on the Bf 109 G-4.

(Translated with DeepL)