This is a great book on the aircraft of Robert Ensault-Pelterie. Many photos of the earlier R.E.P. models. The type F was used by the French but this book is mainly about its use in the Royal Serbian Air Force. Text in both English and Polish. Lots of photos. Excellent line type F drawings in 1/72nd, 1/48th, and 1/32nd scale. Great computer color artwork showing all internal structure, engine, and rigging. Written by Dragan Z. Saler and Aleksandar M. Ognjevic. Published by Kagero. Highly recommended. If you wish to build an all red airplane besides a Fokker Dr.1, this book is for you.