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The Consolidated PB4Y-2 Privateer is an American World War II and Korean War era patrol bomber of the United States Navy derived from the Consolidated B-24 Liberator.The Navy had been using B-24s with only minor modifications as the PB4Y-1 Liberator, and along with maritime patrol Liberators used by RAF Coastal Command, this type of patrol plane was proven successful.
Naval Aircraft Factory version of the PBY-5 with major modification including a 2 ft (0.61 m) bow extension, modified hull lines and step, re-designed tip floats and tail surfaces and a revised electrical system. 155 were built for delivery to the RAF as the Catalina V although 138 were Lend-Leased to the Soviet Navy as the KM-1
PBY Catalina Survivors identifies Catalinas on display, and includes aircraft designations, status, serial numbers, locations and additional information. The Consolidated PBY Catalina was a twin-engined American flying boat of the 1930s and 1940s, designed by Consolidated Aircraft Co.
Polybutylene (polybutene-1, poly(1-butene), PB-1) is a polyolefin or saturated polymer with the chemical formula (CH 2 CH(Et)) n. Not be confused with polybutene , PB-1 is mainly used in piping. [ 2 ]
PB2Y-2 Evaluation variant with four 1,020 hp (760 kW) Pratt & Whitney R-1830-78 Twin Wasp engines, modified hull and six 0.5 in (13 mm) guns, six built. XPB2Y-3 One PB2Y-2 converted as prototype for PB2Y-3. PB2Y-3 Production variant with four 1,200 hp (890 kW) Pratt & Whitney R-1830-88 Twin Wasp engines and eight 0.5 in (13 mm) guns, 210 built.
PB (pistol), a Soviet silenced pistol intended for army reconnaissance groups and the KGB Picobarn , one trillionth of a barn, a unit of area used in physics Pipe bomb , an improvised explosive device consisting of a tightly sealed section of pipe filled with an explosive material
Designed by General Electric's Ray Patten (along with their ALCO FA cousins), they were of a cab unit design; both cab-equipped lead A unit PA and cabless booster B unit PB models were built. While externally the PB models were slightly shorter than the PA model, [ 1 ] they shared many of the same characteristics, both aesthetically and ...
pb 3 o 4 + 4 hno 3 → pbo 2 + 2 pb(no 3) 2 + 2 h 2 o With iron oxides and with elemental iron , lead(II,IV) oxide forms insoluble iron(II) and iron(III) plumbates , which is the basis of the anticorrosive properties of lead-based paints applied to iron objects.