Lightweight Drone Power & Data Tether
Minimum-mass construction for continuous-hover broadcast and monitoring platforms.
View constructionKevlar-braided tether rated by breaking strength and mass per metre.
A tethered drone flies for hours because the power comes from the ground, but every kilogram of cable is payload the platform cannot use. Tether design is therefore a trade between mass per metre, conductor cross-section and breaking strength — and the copper that carries the current is the heaviest part. We size the power cores to the drone's actual draw and the tether length, then add the aramid braid needed to carry the resultant load with a defined safety factor.
Where the platform needs high-bandwidth data — video, telemetry, a payload link — a fibre-optic core inside the same tether carries it without adding conductive mass or picking up interference from the power cores. We build the tether to suit the ground station as well: jacket diameter and stiffness for the winch and slip ring, a defined breaking strength for the safety analysis, and termination agreed with the reel supplier.
| Rated voltage | 450/750 V d.c. (system-dependent) |
|---|---|
| Tensile element | High-strength aramid (Kevlar) braid |
| Construction | Power cores + shielded data or fibre optic |
| Sheath | Lightweight PUR, abrasion resistant |
| Temperature range | -40 °C to +105 °C |
| Rating basis | Breaking strength and mass per metre, to tether length |
| Options | Fibre-optic data core, reel and slip-ring compatibility |
| Flame retardant | IEC 60332-1-2 |
This construction is supplied into the following installations. Tell us which one applies and we will confirm the governing requirement.
Core count and cross-section, screen arrangement, sheath compound and colour, print legend, length and termination are all built to order. Send the requirement — including the failed OEM part if this is a replacement — and we will propose the construction and confirm the lead time.
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Minimum-mass construction for continuous-hover broadcast and monitoring platforms.
View construction