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Directional gyro cardan

The cast support frame, upper and lower gudgeons, ring gear and four slip rings surrounding the directional gyro unit.

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Follow the mechanism

Vertical gudgeons support the cardan’s azimuth rotation. The gyro case is carried on a separate horizontal axis inside the frame.

The ring gear receives the stabilizer torque drive. Slip rings maintain the electrical connections as the cardan turns.

The lower gudgeon is hollow so the precession actuator can pass through it.

Geometry follows the cited drawings and photographs. Unmeasured dimensions remain approximate; exploded spacing reveals existing model groups rather than a prescribed disassembly procedure.

Used in these components

COMPONENT · PAGE 25

Stabilizer directional gyro

A horizontal-axis gyro unit carried in a vertical-axis cardan, with electrical transfer, precession and balance fittings.

COMPONENT · PAGE 19

Stabilizer subsystem

The directional gyro, torque motor, clutches and indication linkage carried by the stabilizer housing.

Reference views

Inspect the full sheets as well as detail views. Figure numbers belong to their named document; similar-looking parts may be different variants.

AN 11-30-70, figure 42
AN 11-30-70 · Fig. 42

Exploded spacing is not assembled clearance.

AN 11-30-70, figure 43
AN 11-30-70 · Fig. 43

Exploded spacing is not assembled clearance.

AN 11-30-70, figure 44
AN 11-30-70 · Fig. 44

Exploded spacing is not assembled clearance.

NORDEN.pdf, Lowry 1943, PDF25 / printed7, figure 5
NORDEN.pdf, Lowry 1943, PDF25 / printed7 · Fig. 5

Near-front assembled gyro; check nested widths and all four exposed slip rings. Brush plug pair establishes horizontal case-local clocking; atlas screen diagonals are oblique projections.

norden2.pdf, Lowry Field revised September 1, 1943, figure 17
norden2.pdf, Lowry Field revised September 1, 1943 · Fig. 17

Separate scan of the same stated 1943 revision; disassembly and section topology, not measured dimensions.

norden2.pdf, Lowry Field revised September 1, 1943, figure 18
norden2.pdf, Lowry Field revised September 1, 1943 · Fig. 18

Separate scan of the same stated 1943 revision; disassembly and section topology, not measured dimensions.

Further reference sources