Fuel Quantity Indicator, Hydrostatic, Japanese Naval Aviation C-7 In its original wooden case

In its original wooden case

The turrets impose less drag on the airplane

(i) The ability to disconnect the magnetic slaving signals of the C2 Fluxvalve

The XN-1/APN-67 was a development-stage (XN-1 = Experimental Navy

AAF Material Command also requested the N-6 to replace the old iron sights on all other gun positions in medium and heavy bombers (but most period photos clearly show it didn’t happen)

Fuel Quantity Indicator, Hydrostatic, Japanese Naval Aviation C-7 In its original wooden caseThis is a fine example of the WWII era hydrostatic Fuel Quantity Indicator, manufactured by the Japanese under license from the US manufacturer Pioneer. This particular model was used in the A6M2 version of the Japanese Navy Figher Zero, aka "Zeke" (according to the Funatsu Aviation Instruments Museum Website. Hydrostatic fuel quantity indicators are readily identifiable by the pump knob at their base. The indicator essentially is measuring