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Page Title:
Item 23. Aircraft Magnetic Compass. Type J-2 |
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 Item 22. Receiving Set. Radio AN/ARN-82(*). Vor
RATINGS
PROCEDURE
GREEN
AMBER
RED
Note: The following test covers the
Bearing of vor station corresponds
No signal heard in
Bearing of vor station does not correspond to
vor function only. Apply power to the
to position of aircraft within + 2.
headset; visual
position of aircraft. Flag alarm remains visible.
AN/ARN-82(*).Set pilot's or copilot's
Flag alarm for vertical pointer is
indications normal.
To/from indicator reads incorrectly.
C- 161 I(*)/AIC for NAV signal
completely out of sight. To/from
reception. Set the control unit power
indicator reads TO. Undistorted
switch to PW/R. Tune receiving set
station signal of adequate volume
to frequency of local vor station of
heard in pilot's or copilot's headset.
known bearing Turn the omnibearing
To/from indicator reads FR and
selector (OBS) knob until vertical
vertical pointer centers when OBS
pointer is centered and the to/from
knob is rotated to reciprocal
indicator reads TO. Listen for coded
heading.
station identification of vor station.
Rotate the OBS knob to reciprocal
heading (180 from previous
heading). Determine bearing of air
craft using magnetic compass.
Item 23. Aircraft Magnetic Compass. Type J-2
RATINGS
PROCEDURE
GREEN
AMBER
RED
Note: This test must be performed
Compass card indicates within 2'
Compass card does not
with engines running at a speed
of known correct magnetic head ing
Indicate within t 2 of
sufficient to extinguish the GEN OFF
after 3 minutes have passed.
known correct heading
light Set BATTERY switch to ON
after 3 minutes have
Position aircraft on compass rose
passed
Align aircraft to a known correct
magnetic heading. Check that J-2
COMP
21
TM 11-1520-209-ESC
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