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Safety Lanyard Report - Flipbook - Page 1

FCDD-SCP-PET
SUBJECT: Evaluation of Safety Lanyard
DEPARTMENT OF THE ARMY
01760
U.S. ARMY COMBAT CAPABILITIES DEVELOPMENT COMMAND
SOLDIER CENTER
15 GENERAL GREENE AVENUE
NATICK, MASSACHUSETTS 01760
FCDD-SCP-PET
4 April 2023
TMET JOB #11368
SUBJECT: Evaluation of Safety Lanyard.
INTRODUCTION: A safety lanyard is used in conjunction with safety belt during operations in
aircraft with passenger seats removed for ground dismounted users. Safety belt and lanyards
(SB&L) provides restraint of the wearer to reduce the chances of injury in the event of an
accident, or while moving from the mobility platform in the event of an accident or while
maneuvering. The SBL is not designed as a fall arrest or climbing system.
The lanyard connects to the belt and to an aircraft attachment points (see figure 1). The Textile
Material Evaluation Team at Combat Capabilities Development Command – Soldier Center
evaluated twenty (20) adjustable Safety Lanyards to verify length, hardware functionality and
characteristics, markings, static/proof load, and failure Load after environmental weathering and
conditioning.
Prusik Knot
Aircraft
Connector
Belt
Connector
Figure 1. The Kryptek Krylan20D w/ Spinnaker Shackle
1. METHODS:
a. Length: A measuring tape was used to measure the minimum and maximum adjusted
length of three (3) lanyards under ASTM D1776 textile conditions. The maximum
length is full length extension by adjustment of the lanyard Prusik knot until it stops
at the platform connection hardware. The minimum length is adjustment of the
lanyard Prusik knot until it stops at the belt connection hardware. Measurements
include hardware. A maximum measurement of 30in ± 2in is acceptable. A
minimum length measurement of 18in or less is acceptable.
b. Proof Load Test: Lanyard proof loading was conducted on a calibrated
3

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