In fact, it may be the most spacious submarine design we’ve ever seen. It is 35.1 m (115 ft) long, 7.7 m (25 ft) wide, 7 m (23 ft) high, has 14 large, 4.5 m (14.8 ft) diameter acrylic windows to look out, and has a high-strength exterior lighting so that everyone can clearly see what’s going on outside.
The thing is so massive that the front and rear sections are split into two levels – the upper part is a stage-like area for extra seating, the lower part hides the crew’s cabin in the front and a dining room in the backkitchenand five bathrooms. If the seating on the floor isn’t enough for your bigwigs to feel special enough, the bar can feature a VIP lounge on top so they can get the exclusive treatment they’re used to.
The UWEP’s steel pressure hull allows it to dive to 200 meters (650 feet) below the surface, which isn’t a huge depth in the plan of things, but it’s deep enough to really feel like you’re no longer in Kansas. It is a fully electric submarine with four 80 kW (107 hp) horizontal thrusters and four 40 kW (54 hp) vertical thrusters to assist with ballast and buoyancy systems. Top speed is a very leisurely 3 knots (3.5 mph/5.6 km/h) on the water and 2.5 knots (2.9 mph/4.6 km/h) underwater, so we don’t recommend it as an escape tool .
Interestingly, the U-Boat Worx will use “high-capacity lead-acid” batteries as a massive 1.2-megawatt-hour underfloor battery pack. The company says that’s enough for a trip of up to 18 hours, or multiple shorter trips between charges — and a separate emergency battery will keep critical systems online for 96 hours if the going gets tough.