Williams MX320 Jet Tender Tested for Speed, Grip and Agility
In a previous post (here) I published a promo video of the MX280 and this one. Now it’s time for the test.
The Williams MX320 Jet Tender reached 74 km/h during testing with its 90 hp Rotax engine, exceptional performance from a 3.2-metre hull.
At 35 km/h, it completed a 180-degree turn in less than two boat lengths, demonstrating remarkably responsive jet-powered handling.
Despite weighing only around 250 kg, the Williams MX320 accommodates four adults plus one child and includes additional bow storage.
The smaller Williams MX280 uses a 60 hp engine and weighs approximately 235 kg, offering slightly calmer performance from its shorter hull.
Testing produced 39 mph, with 40 mph considered achievable in flatter water, confirming strong performance for this compact yacht tender.
This real test was published on the Williams Jet Tenders YouTube channel.
If you would like to watch videos more of these British built tenders, you can watch them here.
Related reading: What Is a Rigid Inflatable Boat? · What Size RIB Do I Need? · Waterjet vs Propeller RIB Propulsion · Tender RIB Buying Guide
Specs
| Model | Williams TurboJet 320MX |
| Length overall | 3,19 m / 10 ft 5 in |
| Beam overall | 1,62 m / 5 ft 3 in |
| Dry weight | 255 kg / 562 lb |
| Overall height | 0,85 m / 2 ft 8 in |
| Engine | BRP Rotax ACE 903, 90 hp petrol |
| Fuel capacity | 28 l / 7 US gal |
| Maximum persons | 4 + 1 |
| Maximum speed | 72 km/h / 45 mph |
| Typical fitment | Yachts 14 – 20 m / 46 – 66 ft |
