TM 1-1520-240-MTF
4-50
42. RAMP CONTROL VALVE handle — DN. Check
that ramp does not move.
43. RAMP CONTROL VALVE handle — STOP.
W. RADAR ALTIMETER CHECK.
1-46.
1. Radar Altimeter —Check.
a. Dial pointers between -5 and 5 feet.
b. Digital display indicates 0-3 feet.
c. Set LO Set Index at 100 feet and HI Set
Index 800 feet.
d. LO caution light is on
e. HI caution light is off.
f. OFF flags not in view.
O g. Pilot’s Radar Altimeter Only — Periodic
audio warning “ALTITUDE LOW, TOO
LOW” heard in headsets (pilot, copilot, flight
engineer response).
h. PRESS-TO-TEST, hold and note.
(1) OFF flags not in view.
(2) Dial points 900-1,100 feet.
(3) Digital points 900-1,100 feet.
(4) LO caution light off.
(5) HI caution light on.
O (6) Periodic audio warning “ALTITUDE
HIGH, CHECK ALTITUDE” heard in
headsets (pilot, copilot, flight engineer
response)
(7) Release PRESS-TO-TEST.
O i. Momentarily depress PRESS-TO-TEST
(pilot’s)
