HELI-VAC™ FAST ROPE®  SYSTEMS provide efficient and safe methods for infiltrating and evacuating special operation personnel to and from point targets. 
A special low stretch, abrasion reisitant fiber, Dacron M/P Type 77* and Pli-Moor® construction eliminate rope hockling or kinking, resist heat build up during
use, and afford fast, fully controlled descent and safe, sure assent.

The FAST ROPE®  SYSTEMS were developed in the U.S. during the mid 1980’s in a coordinated effort with our nations military and law enforcement services. 
In 1990, Columbian along with the U.S. Army Natick RD Center in Natick, MA authored and developed the only FAST ROPE® mil-spec which is still in use
today, Military Specification MIL-F-44422 Fiber Rope Assembly, Insertion/Extraction.

1.          SCOPE
1.1 Scope.    This specification covers a fiber rope assembly for the intended use of quick evacuation of military personnel from rotary wing aircraft,
                    (Infiltration Type), or quick Extraction from a ground location by rotary wing aircraft at various elevations.

1.2 Classification.     The rope assembly’s are classified as the following types:

HELI-VAC FAST ROPE HELICOPTER INFILTRATION & EXTRACTION SYSTEMS (OLIVE DRAB) 8 STRAND PLIMOOR 

M/P TYPE 1                                INFILTRATION SYSTEM HIGH TECH TERMINATION 

P/N 3316662 M/P Type I Heli-Vac System w/ High Tech Hardware Termination, 50 feet long (±10%,  -0%)
P/N 3316660 M/P Type I Heli-Vac System w/ High Tech Hardware Termination, 60 feet long (±10%,  -0%)     NSN: 4020-01-352-2728
P/N 3316661 M/P Type I Heli-Vac System w/ High Tech Hardware Termination, 90 feet long (±10%,  -0%)     NSN: 4020-01-352-2729
P/N 3316663 M/P Type I Heli-Vac System w/ High Tech Hardware Termination, 120 feet long (±10%,  -0%)   NSN: 4020-01-352-2730

M/P TYPE 2                                INFILTRATION /  EXTRACTION SYSTEM
                                                     HIGH TECH TERMINATION
P/N 3326682 M/P Type 2 Heli-Vac System w/ High Tech Hardware Termination & Extraction Component, 50 feet long (±10%,  -0%)
P/N 3326680 M/P Type 2 Heli-Vac System w/ High Tech Hardware Termination & Extraction Component, 60 feet long (±10%,  -0%)
P/N 3326681 M/P Type 2 Heli-Vac System w/ High Tech Hardware Termination & Extraction Component, 90 feet long (±10%,  -0%)
P/N 3326683 M/P Type 2 Heli-Vac System w/ High Tech Hardware Termination & Extraction Component, 120 feet long (±10%,  -0%) 

M/P TYPE 3                                INFILTRATION SYSTEM  EYE SPICE TERMINATION
P/N 3336672 M/P Type 3 Heli-Vac System w/ Eye Splice Termination, 50 feet long (±10%,  -0%)
P/N 3336670 M/P Type 3 Heli-Vac System w/ Eye Splice Termination, 60 feet long (±10%,  -0%)
P/N 3336671 M/P Type 3 Heli-Vac System w/ Eye Splice Termination, 90 feet long (±10%,  -0%)
P/N 3336673 M/P Type 3 Heli-Vac System w/ Eye Splice Termination, 120 feet long (±10%,  -0%) 

M/P TYPE 4                                INFILTRATION /  EXTRACTION SYSTEM
                                                     EYE SPLICE TERMINATION
P/N 3346692 M/P Type 4 Heli-Vac System w/ Eye Splice Termination & Extraction Component, 50 feet long (±10%,  -0%)
P/N 3346690 M/P Type 4 Heli-Vac System w/ Eye Splice Termination & Extraction Component, 60 feet long (±10%,  -0%)     NSN: 4020-01-338-3307
P/N 3346691 M/P Type 4 Heli-Vac System w/ Eye Splice Termination & Extraction Component, 90 feet long (±10%,  -0%)     NSN: 4020-01-338-3308
P/N 3346693 M/P Type 4 Heli-Vac System w/ Eye Splice Termination & Extraction Component, 120 feet long (±10%,  -0%)   NSN: 4020-01-338-3309

 2.0                SPECIFICATIONS

 2.1       Materials. 

2.1.1     Main Line.  The main rope line shall be fabricated from virgin continuous filament, DuPont™ Type 77 Mulitplex™ Dacron Polyester constructed of heat
and light resistant polyethylene terephthalate type polyester with a staple wrap.  The rope shall be dyed green to approximate any color in the range
indicated by color chips 34052, 34079, 34086, 34092, 34096, 34097, 34098, 34102, 34108, and 34128 of U.S. FED-STD-595. 

2.1.2       Main Line Construction.

The rope shall be constructed of eight strands arranged in four pairs, where one individual strand shall be laid adjacent to the second strand in each pair,
and shall conform to the requirements specified herein and in table I.  Individual strands shall be made of one size of singles yarn and shall have an equal
number of yarns.  The yarn shall be 45000 denier, with a minimum breaking strength of 620 lbs. and shall be “S” and “Z” twist.  The rope shall be
constructed without knots or splices in the strands of the rope.  However, knots will be permitted in the singles yarn.  In preparation of the constituent
rope strands, the pattern “S”, (or “Z”), shall be employed in the twisting of the yarns and the individual strands of the two pairs while the components
of the remaining pairs shall be twisted in the “S”, (or “Z”), pattern.  The finished rope shall be so constructed that in the interweaving procedure, pairs of
strands of the former structure shall be twisted in the “Z” direction, while alternating pairs of the latter shall be twisted simultaneously in the “S” direction. 
Heat setting of the rope or any portion of its components shall not be permitted.  The physical requirements of the Main Line rope are listed in table 1. 

2.1.3     White Nylon extraction loops rope & Black Nylon Safety line rope. 

The rope shall be constructed of eight strands arranged in four pairs, where one individual strand shall be laid adjacent to the second strand in each pair
and shall conform to the requirements specified herein and in table I.  Individual strands shall be made of one size of balanced 3-ply yarns and shall
have equal numbers of plied yarns.  The singles yarn shall be 4000 to 10000 denier.  The rope shall be constructed without knots or splices in the singles
yarn, 3-ply yarns, strands, or rope.  Knots in the single filaments are acceptable.  In the preparation of the constituent rope strands, the pattern “SZS”
twist shall be employed in the twisting of the singles yarns, the 3-ply yarns and the individual strands of two pairs, while the components of the remaining
pairs shall be twisted in the “ZSZ” pattern.  The finished rope shall be so constructed that in the interweaving procedure, pairs of strands of the former
structure shall be twisted in the “Z” direction, while alternating pairs of the latter structure shall be twisted simultaneously in the “S” direction. 
The finished rope shall be heat set.  Dry heat setting is prohibited

TABLE I. Main Rope Physical Requirements 

 1/ Not a specification requirement; included for information only.
 2/ The load “P” (pounds) shall be equal to 200 times the square of the nominal diameter of the rope in inches (P = 200D²).

3.0       M/P TYPE 1 & M/P TYPE 2 HARDWARE TERMINATION COMPONENTS

3.1       The physical requirements of the High Tech Hardware Termination assembly  are listed in table 2. 

            TABLE 2. High Tech Hardware Physical Requirements 

 4.0      INSPECTION and MAINTENANCE PROCEDURES

 4.1       Suggested inspection procedures.  Examine the main line for any visual defects.  If possible, lay out the entire length of line for inspection. 
Minor defects may be acceptable at the discretion of the inspector.  Critical defects require repair and/or replacement as recommended by the manufacturer. 

            TABLE 5.  Inspection Elements

4.2    Suggested maintenance.  During routine inspection the following repairs can be performed.

A.     Safety Cable eye splice may be repaired by replacement of swag block by any qualified rigging shop.  The swag block should be equal in quality to the
        original, Nicropress Oval Sleeve No. 168-6-VP for 3/16” Stainless Steel Cable. 
B.     Loose screws may be tightened by the user.  Be sure to use the proper equipment and lock threads with a thread locking compound equal to Loctite®  262
        HIGH STRENGTH THREADLOCKER, P/N 26241
C.     Loose whipped ends on lines may be re-whipped by a qualified rope splicer. 

ALL OTHER REPAIRS MUST BE PERFORMED BY THE MANUFACTURER

4.3  Storage Procedures
1)     If the line is wet, hang the line full length and allow to dry before storage.  Seawater will not harm the fiber, but the line should not be stored wet. 
2)     Clean the line with an artificial, or natural hair bristle brush only.  Do not use cleaning fluids or water.
3)     Coil the line using no less than an 18 inch coil.
4)     Store the line in a dry area and not in contact with the ground.
5)     If the line is not used fro an extended length of time, after 6 months of storage uncoil the line and allow the line to hang full length for 24 hours.
6)     Re-store the line using the steps above in steps 3 and 4.