For the serious historian, the B1A10 is a reminder that progress is rarely linear. It is built on the wreckage of what came before.

In Mitsubishi's electronic management system, every registered key fob is assigned a number. Code B1A10 corresponds to the registered with the KOS-ECU.

Mitsubishi B1A10, Japanese bomber, interwar monoplane, Imperial Japanese Navy, 7-Shi, all-metal aircraft, Ka-11.

The B1A10 was a complete departure from tradition. Its fuselage was a semi-monocoque structure made of duralumin , an aluminum alloy that was revolutionary in Japan at the time. The wings were also all-metal, with a corrugated skin (similar to contemporary Junkers designs) for torsional rigidity. However, the wing was not cantilevered; it featured a single, streamlined strut on each side, making it a parasol monoplane —a hybrid design used to reduce weight while testing the monoplane concept.