Nakajima Ki-49

The Nakajima Ki-49 Donryu ("storm dragon") was a Japanese medium bomber of World War II. It was a twin-engine, mid-wing, cantilever monoplane of all-metal construction fitted with a retractable tailwheel undercarriage. During World War II, it was known to the Allies by the code-name "Helen".

Nakajima Ki-49 in Days of Infamy
The Nakajima Ki-49 was first brought to the Hawaiian islands after the US bomber raid by Colonel Doolittle at the Army's request to bolster their defences, much to the Navy's chagrin. However, the like the Hayabusa, it didn't see much combat other than air patrolling and ASW for most of the war.

During the second attempt to retake the islands, the United States Navy planes strafed all Japanese army air fields, destroying nearly all of the bombers. When Lt. Saburo Shindo was force to land at an Army Airfield, he was forced to take ammunition from the Ki-49's for his 20mm machine guns. The Lt. didn't think much of the bomber because it was Army owned and had a shorter range than the G4M, but he admitted that it had a longer range.