Le Rhône 18E (1912) (1912) A 160 hp (120 kW) two-row rotary, consisting of two nine-cylinder rows rotating round a single two-throw crankshaft. Le Rhône 18E (1917) (1917) A 340 hp (250 kW) two-row rotary, consisting of two 9R rows rotating round a single two-throw crankshaft. Le Rhône 28E (1918) A 320 hp (240 kW) four-row rotary, consisting of four seven-cylinder rows rotating round a single four-throw crankshaft.