Форум Breguet's Aircraft Challenge

The machine is exceptional because it was a wireless wing design (warren-truss wing cellule). This machine is the Knoller B.I (Th) Series 35.8 which was structurally disastrous. Excessive fuselage twisting and deformation of the outer wings.
   There were many modifications made to the first and second prototype, but that resulted in not appreciably better performance.
   After five production machines (35.81 to 85) the Flars ordered ten extra production aircraft (35.86 to 35.95). Only one of these fifteen machines was shortly flown. After that feat all were placed in storage, never to come out again.
   Those built by Aviatik were not better. On the 31 december 1915, Aviatik had a contract to built 32 Knoller B.I (Av). The first 35.01 had structural failure and disastrous flight performances. 35.02 elevator horns broken, observator seat of 35.07 broke through the fuselage, ... Only 4 aircrafts were assigned to training or test units : 35.03, 07, 08 and 12.

E.Hauke, W.Schroeder, B.Totschinger Die Flugzeuge der k.u.k. Luftfahrtruppe und Seeflieger 1914-1918

10. Flugzeuge der Fabrik Jacob Löhner & Co. Wien, Floridsdorf
19.01 — 19.26 Knoller C.II (Lo)
119.01 — 119.20 Knoller C.II (Lo)

20. Flugzeuge der Phönix-Flugzeugwerke, vormals Österr. Albatros
25.01 — 25.16 Knoller C.I (Ph) Dm 160

30. Flugzeuge der Österreichischen Aviatik-Werke Wien, Stadlau
30.05 Knoller B.I (Bruchzellenversuch) Merc 100
30.08 Knoller DD H 145
30.09 Knoller DD H 145
30.10 Knoller DD Dm 160
30.11 Knoller C.II (Waffenversuch MG-Turm) Dm 160
35.01 Knoller B.I (Av) Merc 100
35.02 (ex 30.08) Knoller B.I (Av) Merc 100
35.03 — 35.32 Knoller B.I (Av) Merc 100
35.81 — 35.96 Knoller B.I (Th) Type KNF Merc 100
36.01 — 36.23 Knoller C.II (Av) Dm 185
136.01 Knoller C.II (Av) Projekt Dm 160

80. Flugzeuge der Wiener Karosserie-Fabrik (W.K.F.) Wien und Hennersdorf
81.01 — 81.24 Knoller C.II (W.K.F.) Dm 160