The pressure hull is the structure that provides a dry, pressure-resistant habitat to the occupants of an underwater submersible. Most submarines have two structures. The inner hull of a submarine is called the pressure hull as it maintains structural integrity with the difference between outside and inside pressure at depth. The STM500 Submarine is a shallow water diesel-electric attack submarine designed as a concept by STM.
The platform can endure 18+6 (SF) personnel for 30 days at depths more than 250 meters, ready to fire its four tubes loaded with a variety of eight modern heavyweight torpedoes and guided missiles. The submarine is designed for Intelligence, Surveillance, and Reconnaissance (ISR), as well as special operations, mine warfare, shallow water operations, and UXV operations. The submarine may dive 250 + m in depth.
Features
Main Dimensions
| Length Overall | 42.0 m |
| Length Waterline | 4.2 m |
| Max. Beam | 8.5 m |
| Displacement | Surfaced - 485 t /Submerged - 540 t |
Speed & Endurance
| Max Speed | 18+ kts |
| Cruising Speed | 5 kts |
| Endurance | 3500 nm (Diesel) /75 nm (Battery) /4000 nm (Diesel + optional AIP) |
