Exceeding the flight parameters may severely damage
the main rotor assembly of the damaged helicopter,
requiring component replacement. Report the amount
and duration of any flight parameter exceeded to the
unit responsible for the damaged helicopter.
The height above ground level may be difficult to
determine during low-level UMARK operations due to the
length of the sling system. Flight crews should exercise
extreme caution during recovery operations to ensure the
damaged helicopter remains clear of ground obstacles.
4. COMPONENTS REQUIRED
Components of UMARK utilized during the one-hook, long-line recovery are listed in Table 2. Common equipment
used by the ground rigging crew, such as shockproof gloves, goggles, radios, etc., are not included in UMARK.
No additional tools are required for UMARK assembly or rigging of the helicopters.
Table 2. UMARK Components Required
Black/White 30 Ft Heavy Weight Sling
Box Link Assembly
Black/White 30 Ft Heavy Weight Sling with Bridle
Green/White 150 Inches (12.5 Ft) Light Weight Sling
Adjustable Length Tie-Down
Yellow/White 153 Inches (12.75 Ft) Light Weight
Fixed Length Tie-Down (With Snap)
Red/White 208 Inches (17.33 Ft) Light Weight Sling
Fixed Length Tie-Down (Without Snap)
Blue/White 360 Inches (30.0 Ft) Light Weight Sling
Blade Sleeve Assemblies
Black/White 120 Inches (10 Ft) Light Weight Sling
Blade Pole Assembly
Cargo Hook Thimble
Sling Link Assembly
5. DAMAGED HELICOPTER RIGGING
The mast-mounted sight (MMS) of a damaged OH-58D
must be removed prior to recovery.
a. If applicable, remove mast-mounted sight (MMS) in accordance with applicable technical manual.
6. Install Tail-Section Rigging (Figure 1 and Table 3)
Figure 1 details the damaged OH-58D helicopter and
recovery helicopter rigging. Reference numbers in the
following text that are outlined in parentheses [i.e., (1), (2),
etc.] refer to Figure 1 and Table 3 item numbers. Refer to
Figure 1 and Table 3 for configuration guidance.