8-2-23. Hover Check.
Perform the following check at a hover.
1. Flight controls Check flight controls for cor-
2. Systems instruments Check normal.
3. Flight instruments Check as required.
a. VSI, barometric and radar altimeters
Indicate climb and descent.
b. Turn pointers, heading indicators and
magnetic compass Indicate turns right
c. Slip indicator Ball free in race.
Rapid rotation of the pitch and roll trim knobs
on the attitude indicator may cause abrupt
pitch and roll attitude changes with AFCS on.
d. Attitude Indicator Indicate nose high,
nose low, banks right and left.
e. Airspeed indicator Check.
4. LCTS Check retracted.
F 5. GROUND CONTACT indicating lights check
6. AFCS Check as follows: (First flight of
a. SYSTEM SEL switch NO. 1 Check
helicopter stable with no abrupt en-
gagement error. Check NO. 2 AFCS
OFF caution on.
b. SYSTEM SEL switch NO. 2 Check
helicopter stable with no abrupt engage-
ment error. Check NO. 1 AFCS OFF
c. SYSTEM SEL switch Both. Check he-
licopter stable with no abrupt engage-
ment error. Check both AFCS OFF cau-
tion capsules extinguished.
PAT Perform as re-
8. Power Check Perform as required.
8-2-24. Before Takeoff.
* 1. Systems Check indications of the follow-
a. Rotor Check as required.
Master caution panel.
* 2. PARKING BRAKE As required.
* 3. AFCS SYSTEM SEL switch As required.
* 4. CYCLIC TRIM switch Check.
* 5. SWIVEL switch LOCK.
* 6. Transponder As required.
F* 7. Crew, passengers, and mission equipment
8-2-25. VMC Takeoff.
Refer to Aircrew Training Manual (ATM).
Refer to Aircrew Training Manual (ATM). To engage radar
altitude hold perform the following:
Do not use radar altitude hold in forward
flight over terrain. It may not provide
adequate terrain clearance in rapidly
changing terrain. Use radar altitude hold
to maintain a constant absolute altitude
during hover or forward flight over water.
RAD ALT hold can be used to a maximum
of 1,500 feet absolute altitude.
a. Radar altimeter ON. Check that pointer has
rotated from behind the mask, the digital display is lit, and
the OFF flag is out of view.
b. Fly to desired altitude.
c. RAD ALT select on AFCS panel Press. Check
ENGAGED light ON. The radar altitude hold feature of
the AFCS will maintain a constant altitude.
d. To select another altitude, press the THRUST
CONT BRAKE TRIGGER. Fly to desired altitude and
release the THRUST CONT BRAKE TRIGGER. The alti-
tude at the moment the trigger is released will be the new