TM 55-1670-251-20&P/TO 13D3-2-2
k. Sling Assembly, Belly Band PIN 1670EG057A-1 .
2 ing effect of the belly bands on the fuselage by
The belly band assemblies are used to cradle the downed
maintaining a fixed distance, which is equal approximately
aircraft thereby eliminating the need of hardpoint
to the width of the fuselage, between the two connecting
attachments for the sling system. Adjustable chain leg
ends of the-belly band assembly. For the smaller aircraft,
assemblies (P/N 1670EGO68B 1) are provided for one belly
particularly fixed wing, the spreader bar is aligned with the
band assembly to provide a means of changing its length
center line of the fuselage. This orientation allows for
relative to the other band assembly so as to achieve
relocation of the vertex fitting on the spreader bar
appropriate attitude correction of the recovered aircraft.
arrangement to correct for attitude changes of the
The size 7 polyester roundslings, P/N PRSC7065 and
recovered aircraft also the relative angle between the fore
PRSC7070 may be used in lieu of the 1670EG056-1
and aft belly bands is reduced. Two polyester roundslings
webbing straps shown with this belly band. Lighter aircraft
P/N PRS3EOO8 can replace the P/N 1670EG034B 1 sling
may be rigged using two PRS2E017 roundslings choked to
legs for the spreader bar hoisting assembly.
form a 34 foot strap. The 1670EG068B1 adjustable chain
o. Position Strap Anchors 1670EG075A1 and
leg assemblies can be replaced with grab hook and chain
1670EG075A3. The position strap anchors provide a
assembly from the standard 25,000 pound capacity
means for the webbing transition from two strap assemblies
helicopter external cargo sling set.
of three bands each to three equivalent assemblies of two
I. Sling Rotor Head PIN 1670EG043-1. The rotor
bands each. The three strap legs are then covered by the
head sling is used in conjunction with the pendant
antichafe pad which prevents abrasion of the webbing and
assembly, to facilitate rotor head slinging of light helicopters
also affords a more uniform loading between the belly band
as an alternate method to belly band rigging. Rotor head
and the airframe.
slinging is also accomplished by use of two, four or more
polyester roundslings choked around the barrel or arm of
the main rotor hub and jointed with an apex fitting assembly
from the standard 10,000 or 25,000 pound capacity
helicopter external cargo slings.
m. Spoiler Assembly P/N 167EGO32A. Spoilers are
required to destroy undesirable lifting tendencies of the
suspended fixed wing aircraft during forward flight. The
spoilers serve an important function in preventing the
recovered aircraft from "flying" into the recovery (prime
mover) helicopter ter.
n. Spreaded Bar Arrangement PIN 1670EG060B1.
The spreader bar is to be used with pendant assembly and
the sling assembly. Its function is two-fold depending upon
its orientation with respect to the recoverable aircraft. On
(Part No. 1670EG120)
the larger type aircraft for example the CH-47, the spreader
bar arrangement will be positioned across the fuselage.
This reduces the crush TM 55-1670-251-20&P/TO 13D3-2-
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