G.Haddow, P.Grosz The German Giants (Putnam)
The Luft-Fahrzeug-Gesellschaft m.b.H. in Berlin was founded in 1908, and during the war it was best known for a succession of handsome single-seat fighters and particularly the finely streamlined Roland C.II "Walfisch" two-seater of 1916. It is not generally known that parts of a four-engined 1000 h.p. R-plane were destroyed along with other advanced types when the Adlershof factory was levelled by fire on 6 September 1916. The designation Roland R.I is provisional, and no additional information concerning its configuration or estimated performance has been uncovered. Within four weeks of the Adlershof disaster the first aircraft was delivered from Roland's newly acquired works in Charlottenburg. But after this the firm concentrated on building single-engined fighter and observation types, and not until 1918 did it again consider constructing multi-engined types, of which details are lacking.