Railway engineering company of Hundsfeld, Breslau, which
entered
R.II
aviation in 1916 by repairing and building under
license Roland and Aibatros aircraft. In 1917 completed
its first R-plane (R = Riesenflugzeug; giant aircraft) contract.
The R.I. rebuild later crashed on test. The R.ll was
the largest single-propeller aircraft ever built.