The JAAF Nakajima Ki-49 DONRYU (Helen) is presented in this volume. All variations, markings and units are covered in this, the seventh in a multi-volume series.[AuthorName]By (author) Richard M. Bueschel[/AuthorName][AuthorBio]Mr. Bueschel is a collector and a world-renowned expert in the field. He is an historian, a columnist for Antique Week and the editor of the "fanzine" Coin Op Classics. He lives with his wife in Mt. Prospect, Illinois and has two daughters who are avid antiquers in their own right.[/AuthorBio][NumIllustration][/NumIllustration][CoAuthor][/CoAuthor][SubTitle][/SubTitle][ColorPattern][/ColorPattern]