Seydlitz carried eleven torpedoes for four tubes, initially using the G6 and receiving the G7 in 1913. The G6 reached about 5 km at 27 knots but only about 2 km at 35 knots, while the G7 extended the low-speed range to roughly 17 km and reached about 7.5 km at 37 knots. Her 11-inch guns could reach about 18 km at low elevation and roughly 19 km by 1916, with shells arriving faster and leaving no visible wake. A torpedo attack also demanded favorable geometry and a target continuing on a predictable course, so using one meant a surface action had already gone badly wrong or offered an unusual opportunity. The ship's 4,200-nautical-mile range at 14 knots reinforces the same doctrinal point: she was the fast arm of the battle fleet, not a worldwide commerce raider.
Notable Point · 31:51-34:38
Why Seydlitz's G6 and G7 torpedoes lagged behind her guns
The G6 and G7 offered different range-speed tradeoffs, but Seydlitz's 11-inch guns reached farther and struck sooner, making a capital-ship torpedo attack an emergency opportunity rather than a primary tactic.