Kawasaki Ki-48 (Lily) - 九九式双発軽爆撃機

Kawasaki Ki-48 (Lily) - 九九式双発軽爆撃機: In the top photos from a vintage publication a Kawasaki Ki-48 of the Tokorozawa Rikugun Koku Seibi Gakko 所沢陸軍航空整備学校 (Army Maintenance School in Tokorozawa, Saitama Prefecture) is having one of the propellers back on after a thorough engine check. In the second photo another "Lily" from the same school is undergoing engine maintenance. Note that the prop colors are different; all brown in the top photo, unpainted in the second.

The prop warning sign, in katakana, on the fuselage side reads "キケン" (kiken) meaning "danger".