This handbook is designed to aid air crews and their instructors in the important subject of ship recognition. The context is limited to vessels most likely to come under observation during missions of the XXI Bomber Command. Section I: the main task in ship recognition for B-29s. Section II: facts about ships for B-29 crews. Section III: how to recognize merchant ships. Section IV: how to recognize war vessels. Section V: reporting procedure.

N11748 Approved for public release; distribution is unlimited.