The revolutionary WWI helicopter makes for one of our most unusual titles! This extraordinary machine was far ahead of its time and although never deployed operationally,the PKZ 2 made three dozen test flights before it was officially rejected after a disastrous crash on 10 June 1918. Peter Grosz's study includes 1:48 and 1:72 drawings by Steve Simkin plus 13 photos and sketches. Comprises 12 pages including covers with a colour profile on the rear cover.