The prototype ( " Tank , Experimental A10E1 " ) was completed in 1936 , a few months after the A9 prototype . Carden had died in an air crash in 1935 and development was slower than expected . In 1937 , the A10 was dropped as an infantry support tank , but in 1938 it was decided to produce it as a " heavy cruiser "
died in an air crash in 1935
1935 SABENA Savoia-Marchetti S.73 crash
Cruiser Mk II