W.Green, G.Swanborough The Complete Book of Fighters
AVIATIK (BERG) 30.27 & 29 Austria-Hungary
Whereas all previous single-seat fighters designed by von Berg had utilised Austro-Daimler inline engines, the Aviatik 30.27 and the similar 30.29, which appeared early in 1918, were powered by the 160 hp Steyr Le Rhone 11-cylinder rotary. Of wooden construction with plywood fuselage skinning, apart from the forward section which was covered by light metal panels, and fabric-covered wings, the Aviatik 30.27 and 30.29 each carried the standard twin-Schwarzlose gun armament, and were initially flown with two-bladed propellers. Subsequently, the original engine cowling (which left the lowest three cylinders exposed) was replaced by a full ring cowling, and the four-bladed Jaray propeller was adopted. Both participated in the July 1918 D-Contest, 30.29 crashing when the upper wing leading-edge collapsed as its pilot initiated a loop. The following details apply to the 30.27 in its final form.
Max speed, 115 mph (185 km/h) at 2,625 ft (800 m).
Time to 3,280 ft (1000 m), 1.42 min, to 6,560 ft (2 000 m), 3.75 min.
Empty weight, 851 lb (386 kg).
Loaded weight, 1,336 lb (606 kg).
Span, 22 ft 4 1/2 in (6,82 m).
Length, 16 ft 4 3/4 in (5,00 m).
Height, 8 ft 6 3/4 in (2,61 m).