Aeronautic Instruments. Section IV : Direction Instruments (1923)
NASA Technical Reports Server (NTRS) · leaf 42
glass observation window is held in place by a metal ring graduated from 0° to 360° at 10° intervals. This ring also contains the lamp socket. A movable pointer is pivoted a1 the center of the glass. The inside of the bowl is painted white. Two black wires, 180° apart, serve as lubber-lines for… … Fig. 23.-Pfadfinder armee kompass IV. Fig. 24.-Pfadfinder kompass fiir aviatik. an aluminum bar projects, holding the compensating magnets. An aluminum case protects these magnets. There are two binding posts on the bracket, connected by wires to the lamp socket. This instrument has a period of…
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