Dr Caspar formed second company 1921, Caspar-Werke at Lübeck Travemünde, appointing Ernst Heinkel designer. First product U.1 small observation seaplane, easily dismantled for shipboard use, 2 supplied US Navy and 2 to Japan 1922. Heinkel developed wartime W 29 seaplane into S.1 (Bücker got Heinkel to move this to Sweden, see SAAB, Caspar disputing rights to design, and Heinkel leaving May 1922). New designer Ernst Ritter von Lössl produced CLE.11 3-seat monoplane, CLE.12 large 10-seater, CLE.16 3-seater, CJ.14 biplane fighter (1924), CS 14 larger fighter (1926) and C.17 light 2-seater. C.32 crop-dusting biplane (1927) was designed by Reinhold Mewes, and C.35 Priwall 8-passenger biplane by H. Herrmann. Company liquidated 1928.