Consolidated PB4Y-2 Privateer

The Consolidated PB4Y-2 Privateer is a 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. A fully navalized design was desired, and Consolidated developed a dedicated long-range patrol bomber in 1943, designated PB4Y-2 Privateer.[1] In 1951, the type was redesignated P4Y-2 Privateer. A further designation change occurred in September 1962, when the remaining Navy Privateers (all having previously been converted to drone configuration as P4Y-2K) were redesignated QP-4B.

PB4Y-2/P4Y-2 Privateer
PB4Y-2 Privateer VP-23 in flight
U.S. Navy PB4Y-2 from VP-23 in flight.
Role Maritime patrol bomber
Manufacturer Consolidated Aircraft
Introduction 1943
Retired 1954, U.S. Navy
1958, U.S. Coast Guard
Primary users United States Navy
United States Coast Guard
Produced 1943–1945
Number built 739
Developed from Consolidated B-24 Liberator

Design and development

PB4Y-2 with bats NAN2-46
A PB4Y-2B carrying ASM-N-2 Bat glide bombs.

The Privateer was externally similar to the Liberator, but the fuselage was longer to accommodate a flight engineer's station, and it had a tall single vertical stabilizer rather than the B-24's twin tail configuration. The Navy wanted a flight engineer crewmember to reduce pilot fatigue on long duration over water patrols. The single vertical tail was adopted from the USAAF's canceled B-24N design (and was slightly taller on the Privateer) because it would increase stability at low to medium altitudes for maritime patrol. The Ford Motor Company, which produced B-24s for the United States Army Air Forces, had earlier built an experimental variant (B-24K) using a single tail.[2] Aircraft handling was improved. The single tail design was used on the B-32 Dominator and PB4Y-2 and was slated for the Air Corps' proposed B-24N production model to be built by Ford, but that order (for several thousand bombers) was canceled on 31 May 1945.

Defensive armament on the PB4Y-2 was increased to twelve .50-in (12.7 mm) M2 Browning machine guns in six power operated turrets (two dorsal, two waist, nose and tail); the B-24's ventral, retractable Sperry ball turret was omitted. Turbosuperchargers were not fitted to the Privateer's engines since maritime patrol missions were not usually flown at high altitude, improving performance and also saving weight.

The navigator's astrodome was moved from its (B-24/PB4Y-1) position on the aircraft's upper nose to behind the first dorsal gun turret. Electronic countermeasure (ECM), communication and radar antennas also protruded or were enclosed in fairings at various locations on the fuselage of the Privateer, including a manually retractable AN/APS-2 radome behind the nose wheel well.

The Navy eventually took delivery of 739 Privateers, the majority after the end of the war. Several PB4Y-2 squadrons saw operational service in the Pacific theater through August 1945 in the reconnaissance, search and rescue, electronic countermeasures, communication relay, and anti-shipping roles (the latter with the "Bat" radar-guided bomb).

Operational history

The Privateer entered U.S. Navy service during late 1944, Patrol Bomber Squadrons 118 and 119 (VPB-118 and VPB-119) being the first Fleet squadrons to equip with the aircraft. The first overseas deployment began on 6 January 1945, when VPB-118 left for operations in the Marianas. On 2 March 1945 VPB-119 began "offensive search" missions out of Clark Field, Luzon in the Philippines, flying sectored searches of the seas and coastlines extending from the Gulf of Tonkin in the south, along the Chinese coast, and beyond Okinawa in the north.

Privateers were used as typhoon/hurricane hunters from 1945 to the mid-1950s. One aircraft, designated BuNo 59415 of VPB-119, went down when it experienced mechanical trouble while investigating a Category 1 typhoon near Batan Island in the Philippines. It attempted to land on the island, but was unable to do so and crashed. It was one of only six hurricane hunter flights that were ever lost, and the only one found.[3] Another P4Y-2S, designated BuNo 59716 of Squadron VW-3 (formerly VJ-1), was lost during reconnaissance of Super Typhoon Doris on 16 December 1953. Flying out of NAS Agana, Guam, the Privateer with a crew of nine was tracking Typhoon Doris with sustained winds of 90-95 knots near the small island of Agrihan north of Guam. No sign of the crew nor wreckage of the plane was ever found.

PB4Y 1
U.S. Coast Guard PB4Y-2G.

PB4Y-2s were also used during the Korean War to fly "Firefly" night illumination missions dropping parachute flares to detect North Korean and Chinese seaborne infiltrators. In addition, Privateers were used by the U.S. Navy for signals intelligence (SIGINT) flights off of the coast of the Soviet Union and the People's Republic of China. On 8 April 1950, Soviet La-11 fighters shot down a U.S. Navy PB4Y-2 Privateer (BuNo 59645) over the Baltic Sea, off the coast of Liepāja, Latvia. Named the Turbulent Turtle, the aircraft was assigned to Patrol Squadron 26 (VP-26), Det A.[4]

The French Aéronavale was supplied with Privateers via the Mutual Defense Assistance Act, which they used as bombers during the Indochina War and later operated out of Bizerte, Tunisia and Algiers.

All U.S. Navy PB4Y-2s were retired by 1954, though unarmed PB4Y-2G Privateers served until 1958 with the Coast Guard before being auctioned off for salvage.

The Navy dropped the patrol-bomber designation in 1951 and its remaining PB4Y-2s were redesignated P4Y-2 Privateer. (The earlier XP4Y-1 Corregidor was a completely different design, based on the Consolidated Model 31 twin-engine flying boat.) PB4Y-2s were still being used as drones in the 1950s/early 1960s, designated PB4Y-2K, and P4Y-2K after 1951. They were then redesignated QP-4B under the 1962 United States Tri-Service aircraft designation system, becoming part of the new patrol number series between the Lockheed P-3 Orion and the Martin P-5 Marlin.[5]

A number of PB4Ys were supplied to the Republic of China Air Force for use in missions over the People's Republic of China. One was shot down by ground fire on 12 September 1954, near Xiamen, People's Republic of China. The crew of nine were killed. Another was shot down on 15 February 1961 by Burmese Hawker Sea Fury fighter aircraft, near the Thai-Burmese border, killing the crew of five. Two other crew members were taken prisoner. This aircraft was carrying supplies for Chinese Kuomintang forces fighting in northern Burma.[6]

Privateers in aerial firefighting

P4Y-2 Tanker 123 BuNo 66260 (N7620C), of Hawkins & Powers in service supporting the CDF, at Chester Air Attack Base in the late 1990s—crashed 18 July 2002.
Consolidated PB4Y-2 Naval Aviation Museum
PB4Y-2 BuNo 66261 (marked as BuNo 66304) in the collection of the National Naval Aviation Museum at NAS Pensacola, Florida.

A limited number of refitted PB4Ys and P4Ys continued in civilian service as airtankers, dropping fire retardant on forest fires throughout the western United States. On 18 July 2002, one such refitted P4Y, BuNo 66260 (seen in picture to right) operated by Hawkins and Powers Aviation of Greybull, Wyoming broke up in flight while fighting a wildfire near Rocky Mountain National Park. Both crew members were killed in the accident, and the Federal Aviation Administration temporarily grounded all large air tankers in the region.[7] Despite the fact that the crash was the result of poor maintenance, and a much newer C-130 based aircraft also broke apart due to similar stresses, all remaining Privateers were retired. (See 2002 United States airtanker crashes.)


prototypes, three built.
main production version, 736 built.
PB4Y-2s equipped to launch ASM-N-2 Bat air-to-surface missiles. Redesignated P4Y-2B in 1951.
PB4Y-2s converted for weather reconnaissance. Redesignated P4Y-2M in 1951.
PB4Y-2s equipped with anti-submarine radar. Redesignated P4Y-2S in 1951.
PB4Y-2s converted for air-sea rescue and weather reconnaissance duties with the U.S. Coast Guard. Redesignated P4Y-2G in 1951.
PB4Y-2s converted to target drones. Redesignated P4Y-2K in 1951 and QP-4B in 1962.


 Republic of China
 United States


PB4Y-2 SN66302
PB4Y-2 Privateer BuNo 66302.
On display
Under restoration or in storage

Specifications (PB4Y-2)

3-side drawing of the PB4Y-2 Privateer.

Data from Jane's Fighting Aircraft of World War II[20]

General characteristics



See also

Related development

Aircraft of comparable role, configuration and era

Related lists


  1. ^ Baugher, Joe. "Convair PB4Y-2 Privateer." American Military Aircraft, 23 August 1999. Retrieved: 13 November 2010.
  2. ^ Baugher, Joe. "Consolidated B-24N Liberator." American Military Aircraft. Retrieved: 13 November 2010.
  3. ^ Tannehill, Ivan Ray. The Hurricane Hunters. New York: Dodd Mead, 1955. ISBN 0-396-03789-5.
  4. ^ "Intrusions, Overflights, Shootdowns and Defections During the Cold War and Thereafter." Retrieved: 25 July 2011.
  5. ^ Gordon Swanborough, Peter M. Bowers: United States Navy aircraft since 1911. Naval Institute Press, Annapolis, Maryland (USA) 1990, p. 106. ISBN 0-87021-792-5
  6. ^ Pocock, Chris. The Black Bats: CIA Spy Flights Over China From Taiwan, 1951–1969. Atglen, Pennsylvania: Schiffer Military History, 2010. ISBN 978-0-7643-3513-6.
  7. ^ "Two Die in Crash Fighting Colorado Wildfire." Retrieved: 13 November 2010.
  8. ^ "FAA Registry: N2872G" Retrieved: 11 June 2012.
  9. ^ "PB4Y-2 Privateer/66300" Yanks Air Museum Retrieved: 2 November 2018.
  10. ^ "FAA Registry: N2871G" Retrieved: 11 June 2012.
  11. ^ "PB4Y-2 Privateer/66302" GossHawk Unlimited Retrieved: 2 November 2018.
  12. ^ "PB4Y-2 Privateer/59701" Retrieved: 2 November 2018.
  13. ^ "PB4Y-2 Privateer/59819" Pima Air and Space Museum Retrieved: 2 November 2018.
  14. ^ "PB4Y-2 Privateer/59876" Yankee Air Force Retrieved: 2 November 2018.
  15. ^ "FAA Registry: N7962C" Retrieved: 11 June 2012.
  16. ^ "PB4Y-2 Privateer/59882" Retrieved: 2 November 2018.
  17. ^ "PB4Y-2 Privateer/59932" National World War II Museum Retrieved: 16 July 2014.
  18. ^ "PB4Y-2 Privateer/66261" NationalNaval Aviation Museum Retrieved: 11 June 2012.
  19. ^ "FAA Registry: N7237C" Retrieved: 2 November 2018.
  20. ^ Bridgeman 1946, pp. 217–218.
  • Bridgeman, Leonard. "The Consolidated Vultee Privateer." Jane's Fighting Aircraft of World War II. London: Studio, 1946.'ISBN 1-85170-493-0.

External links

2002 United States airtanker crashes

In 2002, two large airtankers – a Lockheed C-130 Hercules and a Consolidated PB4Y-2 Privateer – crashed about a month apart while performing aerial firefighting operations. These crashes prompted a review of the maintenance and use of the entire U.S. large airtanker fleet. Ultimately, the whole fleet (33 aircraft in all) was grounded, dramatically reducing the resources available to fight major wildfires. Both aircraft were owned by Hawkins & Powers Aviation of Greybull, Wyoming and operated under contract to the United States Forest Service (USFS). The crashes occurred in one of the worst fire seasons in the last half century, one in which 73,000 fires burned 7.2 million acres (29,000 km2) of land.

747 Supertanker

The 747 Supertanker is one of several aerial firefighting airtankers derived from various Boeing 747 models. The aircraft are rated to carry up to 18,600 US gallons (70,000 L) of fire retardant or water. They are the largest aerial firefighting aircraft in the world.Initially developed by Evergreen International Aviation, the first Supertanker was based on a 747-200 (N470EV, tanker/tail number 947), and never entered service. The second Supertanker (N479EV, tanker/tail number 979) was based on a 747-100 originally manufactured by Boeing in 1971 for Delta Air Lines. It entered service for the first time in 2009, fighting a fire in Cuenca, Spain, and made its first American operation on August 31, 2009 at the Oak Glen Fire in California. It is no longer in service.

The third 747 Supertanker was developed by Global Supertanker Services which acquired most of Evergreen's assets. The Global Supertanker (N744ST, tanker/tail number 944) is a Boeing 747-400 dubbed the Spirit of John Muir. It was certified for firefighting flights by the Federal Aviation Administration in September 2016 and fought fires in Chile and Israel before being contracted by U.S. officials to fight California wildfires in 2017. It also took part in firefighting in Bolivia August 2019

Borneo campaign (1945) order of battle

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Brown Field Municipal Airport

Brown Field Municipal Airport (IATA: SDM, ICAO: KSDM, FAA LID: SDM) is in the Otay Mesa neighborhood of San Diego, California, 13 miles (21 km) southeast of Downtown San Diego and named in honor of Commander Melville S. Brown, USN, who was killed in an airplane crash in 1936. Its main runway is 7,972 feet (2,430 m) long.

Its FAA/IATA airport code is SDM. Formerly Naval Auxiliary Air Station Brown Field, it is now a civilian reliever airport and a port of entry from Mexico. It is sometimes staffed by the U.S. Customs Service, but only upon request of incoming pilots to the Federal Aviation Administration.

Carl J. Seiberlich

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Consolidated Aircraft

The Consolidated Aircraft Corporation was founded in 1923 by Reuben H. Fleet in Buffalo, New York, the result of the Gallaudet Aircraft Company's liquidation and Fleet's purchase of designs from the Dayton-Wright Company as the subsidiary was being closed by its parent corporation, General Motors. Consolidated became famous, during the 1920s and 1930s, for its line of flying boats. The most successful of the Consolidated patrol boats was the PBY Catalina, which was produced throughout World War II and used extensively by the Allies. Equally famous was the B-24 Liberator, a heavy bomber which, like the Catalina, saw action in both the Pacific and European theaters.

In 1943, Consolidated merged with Vultee Aircraft to form Consolidated-Vultee Aircraft, later known as Convair.

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French Naval Aviation

French Naval Aviation (often abbreviated in French to: « l'Aéronavale », or « Aviation navale » or more simply « l'Aéro ») is the naval air arm of the French Navy. The long-form official designation is Force maritime de l'aéronautique navale. Born as a fusion of carrier squadrons and the naval patrol air force, the Aéronavale was created in 1912. The force is under the command of a flag officer officially named Admiral of Naval Aviation (ALAVIA) with his headquarters at Toulon naval base. It has a strength of around 6,800 military and civilian personnel. It operates from four airbases in Metropolitan France and several detachments in foreign countries or French overseas territories. Carrier-borne pilots of the French navy do their initial training at Salon-de-Provence Air Base after which they undergo their carrier qualification with the US Navy.

Lavochkin La-11

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List of United States bomber aircraft

This is a list of United States bomber aircraft

List of aircraft of the United States during World War II

A list of USAAF, USN, USCG, and USMC aircraft of the World War II time period.

List of inactive United States Marine Corps aircraft squadrons

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List of maritime patrol aircraft

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List of military equipment used in the Korean War

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Martin P4M Mercator

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Naval Air Station DeLand

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San Diego International Airport

San Diego International Airport (IATA: SAN, ICAO: KSAN, FAA LID: SAN), formerly known as Lindbergh Field, is an international airport 3 mi (4.8 km) northwest of Downtown San Diego, California, United States. It is owned and operated by the San Diego County Regional Airport Authority. San Diego International Airport covers 663 acres (268 ha) of land.In 2015, traffic at San Diego International exceeded 20 million passengers, serving more than 500 scheduled operations carrying about 50,000 passengers each day. While primarily serving domestic traffic, San Diego has nonstop international flights to Canada, Germany, Japan, Mexico, Switzerland, and the United Kingdom.San Diego is the largest metropolitan area in the United States that is not an airline hub or secondary hub; however, San Diego is a focus city for Alaska Airlines and Southwest Airlines. The top five carriers in San Diego during 2017 were Southwest Airlines (34.7%), American Airlines (12.6%), United Airlines (11.9%), Delta Air Lines (10.3%), and Alaska Airlines (8.7%).San Diego International is the busiest single runway airport in the United States and third-busiest single runway in the world, behind Mumbai and London Gatwick. The airport's landing approach is well known for its close proximity to the skyscrapers of Downtown San Diego, and can sometimes prove difficult to pilots for the relatively short usable landing area, steep descent angle over the crest of Banker's Hill, and shifting wind currents just before touchdown. San Diego International operates in controlled airspace served by the Southern California TRACON, which is some of the busiest airspace in the world.

Yanks Air Museum

The Yanks Air Museum is a non-profit 501 (c)(3) organization and museum dedicated to exhibiting, preserving and restoring American aircraft and artifacts in order to show the evolution of American aviation, located at Chino Airport in Chino, California.

Consolidated aircraft
Manufacturer designation
By role
USN/USMC patrol aircraft designations 1923–1962
Patrol Bomber
Patrol Torpedo Bomber
United States tri-service patrol aircraft designations post-1962


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