Designed to fit into the tender garage of superyachts 30 m (98 ft) and greater, or towed easily behind the Bentley, the HP Sport Sub 2 displaces the Super Yacht Sub 3 as the most compact U-Boat Worx model. Featuring a new acrylic-steel pressure hull design, the craft measures 285 cm (9.3 ft) long and 235 cm (7.7 ft) wide, giving it the same length and width dimensions as the Super Yacht Sub 3. However, it isn't as high, measuring 136 cm (4.5 ft) to the Super Yacht Sub 3's 174 cm (5.7 ft) and providing a more streamlined shape.
Despite the reduced height, U-Boat Worx has positioned the access hatch high above the waterline to overcome the difficulties faced by conventional sports submersible when embarking and disembarking in the water. The company says the elevated freeboard and stability of the vehicle means there is no need for "man-rated" cranes to get people in and out. And with a weight of 2,200-kg (4,850-lb), the craft is light enough to allow existing cranes to be used for launch and recovery.
With 2 x 2.7 kW brushless electric thrusters providing horizontal propulsion and 4 x 2.7 kW thrusters providing vectored vertical propulsion, the personal sports submersible can reach speeds of 3 knots (3.5 mph, 5.6 km/h) on the surface and 2 knots (2.3 mph, 3.7 km/h) when submerged. However, upgrading the horizontal thrusters to 2 x 5.5 kW units will increase speeds to 5 knots (5.7 mph, 9.3 km/h) on the surface and 3 knots below the waves.