Airspeed Indicator, 900 km/h, Luftwaffe Fahrtmesser Fl.22234 Lily Bomber

Airspeed Indicator, 900 km/h, Luftwaffe Fahrtmesser Fl.22234 Lily BomberHere is a WW2 era German Airspeed Indicator FI. 22234, with a maximum airspeed of ~900 km h. As the airspeed increases, rotating the pointer clockwise from the 6 o'clock position, it rotates 360deg past 0 once 800 km h is exceeded, thus following the airspeed index on the inner scale, up to ~900 km h. According to AircraftCockpits. com, this was used in aircraft such as Do335, Fi103, FW190A7 9, Ta152, Go229, He162, He219, Ju388, Bf109G, Fi103, and

or an internal engine-driven compressor) and the system of pneumatically-powered flight instruments

thus following the airspeed index on the inner scale

Its a terrific historical document

The bracket has one spirit level to ensure that the gunsight body is level perpendicular to the line of flight

to be sure

When viewing the ground through the scope while in flight

used by bombardiers and technicians to check the proper operation of the Norden Bombsight

When the de-icing system is engaged by flipping a toggle switch

The pointer is calibrated by turning the screw in the lower left corner

This valve was used to regulate the vacuum pressure between its source (either an externally-mounted venturi tube

Nakajima B5N Torpedo Bomber Type 97 aka "Kate"

where the master switch is a flat toggle instead of a push/pull switch as designed in this B-6