› added 4 years ago
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TIL after the attack on Pearl Harbor, Japan built foldable submarine-launched naval aircraft to bomb U.S. western and eastern seaboards, the 18 I-400 class submarines stowed up to three Aichi M6A Seiran floatplanes, each could carry an 800 kg (1,800 lb) bomb 1,000 km (620 mi) at 475 km/h (295 mph).