Type XVII Submarine (Walter HTP Experimental)
WALTER HTP - 25 Knots Submerged! REVOLUTIONARY! - 4 boats total: V-80 prototype (1940), U-1405 to U-1407 Type XVIIB (1944-1945). WALTER HTP TURBINE! Using hydrogen peroxide (HTP) decomposition for propulsion! 25 KNOTS SUBMERGED (REVOLUTIONARY!). "High-Speed HTP" special ability (+150% underwater speed, EXPERIMENTAL!). First true high-speed submarine! 312 tons surfaced, 2× 53.3cm torpedo tubes, 4 torpedoes, 8.5 knots surfaced/25 knots submerged. 2500 HP Walter turbine (submerged propulsion!). Streamlined hull (minimal superstructure). Hydrogen peroxide fuel (highly reactive, dangerous!). Experimental status (only 4 boats). Influenced post-war British Explorer-class and Soviet Project 617.
Specifications
- Displacement (std)
- 201 t
- Displacement (full)
- 357 (submerged) t
- Length
- 128.1 ft
- Beam
- 14.8 ft
- Crew
- 19
- Ships built
- 4 (1 prototype + 3 Type XVIIB)
- Commissioned
- 1940 (V-80), 1944-1945 (XVIIB)
- Decommissioned
- 1945
Performance
- Top speed
- 9 kn
- Range
- 3000 nm at 8 knots surfaced, 114 nm at 25 knots submerged (HTP!)
Armament
- Secondary guns
- None
- Torpedoes
- 2× 53.3cm bow
Armor & Systems
- Belt
- None
In-Game
- Tier
- T2
- Game power
- 28.55
- Research cost
- 2,512
- Credit cost
- 19,985
Notable
- WALTER HTP TURBINE! (hydrogen peroxide propulsion!)
- 25 KNOTS SUBMERGED! (REVOLUTIONARY!)
- "High-Speed HTP" special ability (+150% underwater speed, EXPERIMENTAL!)
- First true high-speed submarine!
- Hydrogen peroxide (HTP) fuel system
- V-80 prototype 1940 (first Walter boat)
- 2500 HP Walter turbine (submerged!)
- Streamlined hull (minimal superstructure)
- Influenced post-war designs (British Explorer-class, Soviet Project 617)
- Experimental status (only 4 boats total)
- Dangerous HTP fuel (highly reactive!)