Part Number
Primary Hook Load (NHEC)
800 lb. (363 kg)
Secondary Hook Load (HEC)
800 lb. (363 kg)
Length (Primary Rope):
30 in. (76 cm)
Length (Secondary Rope):
34.5 in. (88 cm)
Unit Weight
3.6 lb. (1.63 kg)
Service Life
4 years after first use

HEC Y-Ropes

Y-Rope for MD500 & MD600 HEC Dual Cargo Hook Kits

Product Number: 490-014-00

Typically ships within two (2) business days

The Y-rope is required when conducting human external cargo (HEC) missions using our MD500 Dual Cargo Hook Kit. It provides a controlled interface between the two cargo hooks and the longline. For the components below the Y-rope (carabiner to lanyard), Onboard offers an optional HEC longline package. Alternative configurations or components may also be approved for use through your local Aviation Authority.

NOTE: For use with the MD500 and MD600 Dual Cargo Hook Kits

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  • High-Performance LCP Fiber Rope:Longlines are fabricated using Vectran® LCP (liquid crystal polymer) synthetic fiber yarns to provide greater heat resistance as compared to HMPE fiber ropes. Super strong and ultra light, the ropes are treated with a polyurethane coating to resist abrasion and UV degradation.
  • Color-Coordinated for Accurate Installation:Y-rope lines are color-coded and imprinted with block-lettered identifying text to ensure correct installation every time.
  • NHEC Load Options:With the Y-rope attached to both cargo hooks, the dual cargo hook system load limit is 800 lb. (363 kg) for both HEC and non-HEC (NHEC) missions. When an NHEC load is attached to only the primary cargo hook, the normal aircraft load limit applies.


Why Onboard

We maintain a large inventory of products, spare parts, and complete systems on site, allowing fast shipment of most items. While other manufacturers may put you on a waiting list for months, Onboard is able to turn around orders quickly — oftentimes the same day your payment is received. View our shipping policy here