Technical aspects of the attempt

Hull
Designed and built by Nigel Ringwood Firefly is a purpose built 16ft electric inboard 3 point hydroplane with a design speed of 120 mph. She is constructed of marine plywood, Kevlar and epoxy resins which makes her not only extremely strong but very light.

Motors
Supplied by Cedric Lynch of Agni Motors they are designed with a disc armature. They bring together the advantage of a conventional wound armature formed into a self-cooling flat unit which is highly powerful versatile and lightweight. The disk armature has magnets either side doubling the flux density which shortens the magnetic path.
The technology is mostly un-heard of, but with a power to weight ratio and power to volume higher than most other motors it is extremely efficient.

Batteries
Chloride Motive Power are the UK's largest supplier of batteries for traction and motive power use. Part of the giant multinational Exide Technologies Group, they drive fork-lift trucks, airport tow-tractors, milk-floats, boats - in fact anything that needs silent, safe, non-polluting power. They offer a comprehensive range of sales and service options, dealing in every variation of lead-acid technology; traction, flooded cells, gel cells, and AGM. The AGM, Absorbed Glass Mat, cells used in An Stradag employ the latest spiral-wound technology, with the acid held in an absorbent mat. The cells are completely sealed, and will not leak if they are turned over. The AGM technology gives maximum current, deep-cycling capability, minimal gassing, and long service life. They can be supplied for traction motive power use or engine-start applications.

Electronic Controllers
Curtis UK have supplied the electronic controllers that deliver the battery power to the motors. Part of the multinational Curtis Group, their products are used invirtually every application of electric motive power, from cars to boats and fork-lift trucks. The controllers use solid-state technology to convert the voltage of the batteries to high-frequency current that allows infinitely variable control of the motors, with minimum power loss, and every possible safety feature. One controller supplies each motor with a maximum 148V, and up to 350 amps.