Mitsubishi A6M2 Zero-Sen view of the instrument panel Mitsubishi A6M2 Zero-Sen, view of the instrument panel of Petty Officer Tadayoshi Koga, IJN’s aircraft, the first captured intact by US for flight-tests in WWII. It was found on 10 July 1942 after lain on its back since 4 June 1942 when Koga was killed trying to land his aircraft in what he supposed to be a hard-surfaced ground, which turned out to be a marsh. The plane then flipped on its back. NHHC Photograph Collection, NH 82482.