G7a TIIt was the standard issue torpedo for all German U-boats and surface torpedo-bearing vessels at the start of the war.
The G7a(TI) torpedo was 533.4 mm (21 in) in diameter, 7163 mm (23 ft 6 in) in length (with a type Ka or Kb warhead and Pi1 or Pi2 pistol), the warhead holding a charge of approximately 280 kg (617 pd) of Hexanite. The torpedo was of a straight-running unguided design, controlled by a gyroscope. The G7a(TI) was of variable speed, running a distance of 5,000 m at 81 km/h (5,500 yd at 44kt), 7,500 m at 74 km/h (8,250 yd at 40 kt), and 12,000 m at 55.6 km/h (13,200 yd at 30 kt).
Dimensions 533.4 mm
Length: 7163 mm