Williams Electric EvoJet 70e

LOA7.1m
Beam2.65m
Top Speed35kn
Guests13
EnginesEVOA electric system
PropulsionElectric
HullOther
New buildTo order
Pre-ownedNone on the market
PriceOn request

Specifications last verified

About this tender

Williams Electric EvoJet 70e - what we know.

The Williams Electric EvoJet 70e is a 7.1m tender from Williams, built in Oxfordshire, UK: electric power, 35 knots and 13 guests.

The Electric EvoJet 70e is the build we ask Williams Jet Tenders for when a programme requires zero-emission operation without surrendering the performance and layout discipline that made the original EvoJet the benchmark in its class. At 7.1m with a 2.65m beam, this is a proper thirteen-seat tender - not a concept study with a battery bolted on - and Williams have been unambiguous in stating it is powered by EVOA's electric system: 58.5 kWh of usable capacity driving jet propulsion to a quoted top speed of 40 mph.

What sets the 70e apart from competing electric tenders is the integration. The jet drive that defines Williams' handling character is retained, which means the same single-lever pinpoint accuracy at low speed that crews rely on when coming alongside in a swell. The rotating helm bolster, the 235-litre distributed storage, the folding transom seat, and the optional folding carbon fibre T-top all carry over from the combustion EvoJet - so your guests are not being asked to accept a lesser product in exchange for the quieter operation.

The dry weight of 2,200 kg reflects the battery payload honestly, and captains speccing garage arrangements for yachts in the 40m-plus bracket should size the chock and lifting system accordingly. The optional T-top folds to a 1.35m air draft, which Williams quote specifically to assist tight garage fitments - a practical detail that matters on the vessels this tender is designed to serve.

Highlights

Built for the work.

The four details we'd point out first to a captain who hasn't seen one on the water yet.

01

EVOA Electric Jet Propulsion

The 70e uses EVOA's complete electric system paired with Williams' jet drive - retaining the low-speed handling precision and single-lever control that the platform is known for, while eliminating exhaust emissions and reducing noise alongside the mothership.

02

58.5 kWh Battery Capacity

A 58.5 kWh battery pack replaces the conventional fuel tank. Williams quote a top speed of 40 mph, positioning this as a performance-capable electric tender rather than a low-speed utility run-about.

03

Folding Carbon Fibre T-Top Option

The optional carbon fibre T-top provides shade at the helm and passenger positions, then folds to bring overall height down to 1.35m - a specific design response to the tight deckhead clearances common in superyacht tender garages.

04

235 Litres of Distributed Storage

Storage is split across a helm-seat unit and port and starboard lockers, totalling 235 litres. For a tender running a full water-toy programme or carrying provisions for an extended day trip, that volume is meaningfully usable.

05

Thirteen-Seat Layout on a 7.1m Hull

Thirteen passengers on a 7.1m platform is a creditable density for an electric tender at this price point. The folding middle transom seat doubles as a water-ski pole mount, adding operational flexibility without altering the core seating count.

Gallery

The full specification

Every number, sorted.

Dimensions

Length overall
7.10m
Beam
2.65m
Dry weight
2,200kg

Performance

Top speed
35kn

Power and Tanks

Engines
EVOA electric system
Propulsion
Electric

Construction

Hull
Other

Propulsion and Energy

Electric system supplier
EVOA
Battery capacity
58.5 kWh

Layout and Features

Seating
13 passengers
Onboard storage
235 litres
Overall height (standard)
1.83m
Overall height (T-top stowed)
1.35m
Helm
Rotating helm bolster; single-lever throttle
Deck lighting
Concealed ambient LED deck lighting
Transom access
Folding middle transom seat; low-level boarding platforms

Options

T-top
Folding carbon fibre T-top

Fitment Guidance

Typical mothership size
40m and above
Tender garage note
Folding T-top reduces air draft to 1.35m to assist tight garage fitments

Specifications, prices, availability, and performance figures are supplied for guidance only and remain subject to confirmation by the yard, seller, broker, survey, contract, and final specification.

Specification sources

  1. Electric EvoJet 70e - Williams Jet Tenders (retrieved Jun 2026) · length, beam, weight, top speed, guests, engines, engine count, propulsion, fuel, specification, highlights, description

Questions, answered

Before you enquire.

How much does the Williams Electric EvoJet 70e cost?
The Williams Electric EvoJet 70e is priced on request: the figure depends on engines, finish and delivery, so the yard quotes each build. SuperyachtTenders quotes new-build and pre-owned pricing within one working day, with lead time and the options that move the number.
Is the Williams Electric EvoJet 70e available now?
The Williams Electric EvoJet 70e is built to order; ask for the current build slot and delivery date. No pre-owned hulls are on the market this month; we track the used fleet and can alert you when one appears. Enquire through SuperyachtTenders for slot, delivery and pre-owned options in one reply.
How fast is the Williams Electric EvoJet 70e and how far will it go?
The Williams Electric EvoJet 70e has a top speed of 35 knots and 13 guests on a 7.1m tender. Figures are the builder's published numbers for the standard driveline; a different engine option changes speed and range, which is one of the things we confirm before you commit.
How does the 70e handle tight tender garage clearances?
The optional folding carbon fibre T-top reduces overall height from 1.83m to 1.35m when stowed. Williams cite this specifically for tight garage fitments on yachts of 40m and above. Confirm your deckhead clearance and hatch dimensions against both figures before specifying the T-top.
Does the electric drivetrain change the way the jet propulsion handles?
Williams retain the same single-lever jet-drive system used across the EvoJet range. The EVOA motor replaces the combustion engine but the jet unit and control inputs are unchanged, so the low-speed precision and reverse thrust characteristics crews are familiar with carry over directly.
What is the maximum passenger count and how is seating arranged?
The 70e is rated for thirteen passengers. The folding middle transom seat provides flexible use - it folds to allow a water-ski pole to be fitted when the tender is used for watersports. Boarding is assisted by low-level platforms and boarding poles on both sides.
How does the dry weight of 2,200 kg affect davit and garage planning?
At 2,200 kg the 70e is significantly heavier than a comparable combustion tender of this length, reflecting the battery mass. Davit specification and garage deck-load calculations must account for this. We strongly recommend having lifting points and the chock arrangement reviewed by a naval architect before installation.

The yard

Williams

Oxfordshire, UK

Williams Jet Tenders is a British manufacturer founded in 2004 by Roy Parker and brothers Mathew and John Hornsby, building out of an 80,000 sq ft purpose-built facility in Oxfordshire, England. The company traces its roots to a converted garden shed in rural Oxfordshire where the Hornsby brothers began handcrafting boats in the mid-1990s; the formal company registration followed in September 2004.

Williams is the build we ask for when an owner's programme demands a jet-propelled tender that earns its keep across the full yachting day - short transfers, watersports, and heavy guest loads alike. Their proposition is volume: six ranges, seventeen-plus models, covering yachts from 38ft to 40m and above. The entry-level TurboJet and SportJet lines use BRP Rotax petrol engines and jet drive propulsion with no exposed propeller, carrying up to seven passengers at speeds into the upper-forties of knots. The DieselJet range steps up to Yanmar inboard diesels and seating for six to twelve, suited to larger platforms. For programmes running a 40m-plus mothership, the EvoJet 70 is the build to specify: a 7.0m waterjet-powered craft with inboard diesel, seating for thirteen, and multiple boarding locations. SOLAS-compliant variants of the 505, 565, and 625 cover mandatory life-safety requirements for yachts over 500GT without abandoning the standard Williams fit and finish.

Every hull is hand-built by a dedicated team and undergoes an on-water test procedure before dispatch. Williams holds strong factory-fitment relationships with Princess, Sunseeker, Fairline, Azimut Benetti, Ferretti, and Sanlorenzo, with many production models dimensioned specifically around a Williams garage. We'd put the brand alongside the best-supported tender choices in the market at this price tier.

Last call · New build

Enquire about the Electric EvoJet 70e.

Williams · Oxfordshire, UK

Indicative price fromPrices on request
LOA
7.1m
Beam
2.65m
Top Speed
35kn
Guests
13

Tell us about your yacht, your programme, and the missions Electric EvoJet 70e needs to handle. We come back within 48 hours with a written assessment - fit for the brief, lead time, and trade-offs against alternatives in the same band.

Prefer to talk? +44 (0) 77180 88055 · other ways to reach us

Before you enquire

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Check the Williams Electric EvoJet 70e against your tender-garage envelope: length, beam, height and crane limit, in seconds, then attach the result to your enquiry.

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