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c. YAW switch Engage.
O 12. (OH-58D) ESC Check as follows:
18. ENG A N T I I C E C h e c k , i f u s e i s
a. INIT switch Press. anticipated, as follows: Place switch in ENG
ANTI ICE position and check for rise in TGT,
then to OFF and check for decrease in TGT.
b. FDL MENU key Press.
19. PITOT HTR Check, if use is anticipated, as
c. BIT key Press. follows: Place switch in PITOT HTR position
and check for rise in S GEN LD%, then OFF;
d. DIGITAL fuel control overspeed test button check for decrease in S GEN LD%.
Press and release.
O * 20. Weapons systems Initialize and check as
e. BIT codes Record if any and notify required.
maintenance.
O 21. ASE Check as required.
CAUTION
O 22. ADSS Check symbology and set if use is
To prevent structural damage to the anticipated.
mast, limit cyclic movements to 2 inches
maximum displacement from center O* 23. Dual battery charging Complete as follows:
position on ground run.
a. MPD SEL select RECT LD% - S GEN
13. Flight controls Check cyclic, collective, and
LD%, verify S GEN LD% is less than 70%.
antitorque pedals for freedom of movement
and tip path plane for correlation with cyclic
movement. b. BATT 2 switch BATT 2.
* 14. Caution, warning, and advisory messages O* 24. Grounding cable and ejector rack pins
Review. Remove.
8-12
TM 1-1520-248-10
8-24. ENGINE RUNUP CPG/PILOT. O 11. ASE Check as required.
NOTE O 12. MMS boresight Complete as required.
The following steps shall be performed as
required by mission. 8-25. BEFORE TAKEOFF.
1. DTS/MDU Mission load as required.
* 1. Avionics As required.
NOTE
* 2. NR 100%.
Barometic altitude information is provided to
the EGI during the alignment process;
* 3. FADEC AUTO/MAN switch AUTO.
however, the EGI will not align if the
standby altimeter indicates less than sea
level. * 4. Systems Check; engine, transmission,
electrical, and fuel systems indications.
* 2. NAV align Initiate as required. Review cautions and advisories.
O 3. ASE Switches on as required. O* 5. ACP Switches set.
4. Avionics Configure as required:
WARNING
a. IFM Set to HI as required
If the CPG cyclic is to be used as a flight
b. Communication radios Check; program control, the cyclic shall be engaged.
frequencies, configure secure equipment,
and configure frequency hopping equipment. * 6. CPG cyclic Engaged as required.
c. Transponder Program and check.
* 7. Crew, passengers, mission equipment, seat
belts, and armor side panels Check.
O * 5. MMS startup checks Complete as required.
O 6. AVTR Initialize and set as desired. 8-26. HOVER CHECK.
7. Navigation systems Configure as required.
1. Engine and transmission instruments
a. Waypoints Check/load. Check.
b. RMS Configure. 2. Power assurance check Perform on the
first flight of the day as follows:
c. Flight plan Check/construct.
a. HTR and ENG ANTI ICE switches OFF.
d. Battlefield graphics Check/construct.
b. Aircraft stabilized, 3 foot hover, into the
8. (CDS2) ATHS/(CDS3) IDM Configure as wind.
required.
9. (CDS4) IDM Initialize as required. c. Note TGT, FAT and ENG TRQ %.
O * 10. Weapons systems Initialize and check as d. Enter Power Assurance Chart (fig. 8-2) at
required. FAT and move up to indicated TGT, then
8-13
TM 1-1520-248-10
across to current pressure altitude, then O 2. MMS Stowed as required.
down to engine torque.
3. ACP Switches set.
NOTE 4. Landing light Set as required.
O 5. IR JAMMER switch Set as required.
If the indicated ENG TRQ % is less than
value shown on the Power Assurance Chart,
the engine may not meet the performance
data contained in this manual. This would
indicate a NO GO criterion. An entry shall
be made on the DA FORM 2408-13-1/1E
and the a i r c r a f t shall not flown u n t i l
maintenance is performed.
3. Flight instruments Check and set.
4. Hover power check Accomplish as
required.
8-27. THRU FLIGHT CHECK.
8-28. TAKEOFF.
8-29. NORMAL.
Refer To FM 1-203, Fundamentals of Flight.
8-30. BEFORE LANDING (CPG/PILOT AS
REQUIRED).
1. LASER OFF/STBY/ARM switch As
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OPERATOR’S MANUAL FOR ARMY OH-58D HELICOPTER 2(78)
