POWER PLANT: Two Wright R-3350-8 Cyclone 18radial engines, rated at 2,300 hp each
PERFORMANCE: 247 mph at 13,600 ft
COMMENT: The Consolidated XP4Y-1 shore-based patrol, torpedo-bomber and minelayer flying boat, unofficially dubbed “Corregidor”, was a military version of the Consolidated “Model 31”. The prototype of the Model 31 was completed in 1939, and was intended for both civil and military roles. It was intensively modified during its prolonged period of testing, eventually emerging in April 1942 as the XP4Y-1. The rear fuselage was redesigned to provide for the installation of a tail turret, the modified fuselage raised the tail assembly considerably, and, subsequently, the bow of the hull was extensively redesigned, a form of cuff being added, the retractable stabilizing floats were redesigned, and dummy gun turrets were fitted. An order for 200 aircraft was placed and a special plant was established at New Orleans for quantity production of the P4Y-1. But Wright R-3350 Cyclone power plant employed by the flying boat were needed more urgently for the Boeing B-29 “Superfortress” and, in consequence, during summer of 1943 production contracts for the P4Y-1 were cancelled, the New Orleans plant subsequently building the PBY “Catalina” (Ref.: 14).
POWER PLANT: Four Pratt &Whitney R-1830-92 Twin Wasp engines, rated at 1,200 hp each
PERFORMANCE: 213 mph at 20,000 ft
COMMENT: In June 1935 and July 1936, respectively, the US Navy ordered prototypes of large four-engine flying-boats in patrol bomber category from Sikorsky and Consolidated. The Consolidated design, Model 29, made use of retractable wingtip floats similar to those on the Consolidated PBY “Catalina”, but in all other respects it was a wholly new design with high-mounted wing and a capacious hull with accommodation for a crew of ten.
The XPB2Y-1, as designated by the Navy, took-off first time on December 1937, but orders for the big new aircraft was delayed until mid 1939. First six production PB2Y-2s were delivered December 31, 1940, after a production contract for 210 PB2Y-3s was placed a month before. These “Coronados”, as the type was named, often carried ASV radar in a fairing just behind the cockpit. Several aircraft were redesigned and became PB2Y-5 and PB2Y-5R depending on the engines used. All “Coronados” were withdrawn from active service before the end of 1945. (Ref. 22)
TYPE: Patrol and Long-range Anti-submarine Flying-boat
ACCOMMODATION: Crew of nine
POWER PLANT: Two Wright R-2600-12 “Cyclone 14” engines, rated at 1,200 h.p. each
PERFORMANCE: 198 m.p.h. at 13,000 ft
COMMENT: This long-range anti-submarine variant of the basic PBM-3 carried a AN/APS-15 radar in a large housing above and behind the cockpit. Up to 2,000 lb bombs or depth-charges could be carried. A total of 156 of this version were built.