Boat setup · Field guide

Mounts, clamps and tethers

A mount must hold an instrument in chop, release it deliberately and never create a sharp or snagging hazard.

Reviewed August 2026 · Independent editorial guidance

Recommended shortlist

Best temporary clamp

RAM Tough-Claw

Why: Tool-free and movable between event RIBs, with a practical range of ball arms and cradles.

Watch: Check the actual rail diameter and load rating. Re-tighten after the first rough-water run.

Manufacturer details ↗Best semi-permanent base

U-bolt rail base

Why: Compact and resistant to rotation when correctly sized, with less bulk than a large clamp.

Watch: Protect the tube or rail finish, use corrosion-compatible hardware and remove snagging thread ends.

Manufacturer details ↗

Position

The GPS should sit below the driver’s forward sightline, readable without looking down and reachable without leaving the helm. Do not mount a magnetic compass beside radios, speakers, ferrous U-bolts or powered electronics.

The two-point rule

Every handheld device needs both positive retention and an independent tether to the boat. Never tether equipment to a person where it can impede movement or create an entrapment risk.

Temporary RIBs

Carry a known kit: correctly sized clamp, short arm, device cradle, lanyard, rubber isolation strip and a small tool roll. Photograph the setup after the first successful day so it can be repeated.

Editorial standard

Product specifications can change. Check current manufacturer information, event requirements and local operating procedures before buying or relying on equipment.