THE ITALIAN "RICCI" THREE-ENGINED, TWIN-"BOAT" SEAPLANE: Each engine is an Isotta-Fraschini 200 h.p. P 6, two driving pusher screws being mounted in nacelles on either side of a central nacelle, the third engine, driving a tractor screw, being mounted in the nose of the latter. Floatation is by two long single-stepped "boats," one under each wing-engine. Span, 83 ft.; length, 42 ft.; height, 14 ft.; total area, 1,291 sq.ft.; gross weight, 10,340 lbs.; empty, 6,380 lbs.; speed, 99-105 m.p.h.