O.Thetford, P.Gray German Aircraft of the First World War (Putnam)
This experimental single-seat triplane appeared early in 1918. It featured dural tubular wing spars and the aluminium-sheel-covered fuselage was also armoured. It was from this aircraft the later DJ I stemmed. It is certain a vee-eight-type motor was fitted, probably the 195 h.p. Benz Bz IIIb as in the DJ I. Span, 11.2 m. (36 ft. 9 in.). Length, 6.6 m. (21 ft. 7 7/8 in.). Weights: Empty, 1,182kg.(2,600 lb.). Loaded, 1,412kg.(3,106 lb.). Speed, 166 km.hr. (103.75 m.p.h.). Climb, 1,000 m. (3,280 ft.) in 5.8 min. Armament, two Spandau machine-guns firing forward and four small bombs.
W.Green, G.Swanborough The Complete Book of Fighters
A.E.G. PE Germany
The PE (Panzer-Einsitzer) was a single-seat armoured ground attack fighter and proved to be unique among aircraft designed for this task in being of triplane configuration. Featuring an armoured light alloy-covered fuselage and fabric-covered dural wings, the PE was powered by a 195 hp Benz Bz IIIb eight-cylinder water-cooled engine and was first flown in March 1918. Armament consisted of two synchronised 7,92-mm LMG 08/15 machine guns supplemented by racks for small bombs. The PE proved easy to fly but was found to have poor stability and was considered by the Idflieg (Inspektion der Fliegertruppe) to possess inadequate performance for fighter-versus-fighter combat, a dedicated ground attack aircraft being considered unacceptable. Nonetheless, A.E.G. was to persist with the concept with the DJ.
Max speed, 103 mph (166 km/h).
Time to 3,280 ft (1000 m), 5.8 min.
Empty weight, 2,606 lb (1182 kg).
Loaded weight, 3.113 lb (1412 kg).
Span, 36 ft 8 7/8 in (11,20 m).
Length, 21ft 7 7/8 in (6,60 m).