NARVAL 
- TYPE: Submarine
- DISPLACEMENT SURFACED: 990 t (974 tnes)
- DISPLACEMENT SUBMERGED: 1,441 t (1,464 tnes)
- MACHINERY: Twin Screws, Diesel/Electric
Motors; 2,900/1,800 hp - LENGTH: 256.6 ft (78.25 m)
- BEAM: 22.5 ft (6.84 m)
- DRAUGHT: 16.75 ft (5.10 m)
- PERFORMANCE SURFACED: 15 knots
- PERFORMANCE SUBMERGED: 9 knots
- ARMAMENT: 10 550mm TT; 1 100mm gun
- SURFACE RANGE: 2,300 nm (4,762 km)
at 7.5 knots - CREW: 54
- LAUNCHED: May 5, 1925