Cessna L-19 Bird Dog
Encyclopedia
The Cessna
Cessna
The Cessna Aircraft Company is an airplane manufacturing corporation headquartered in Wichita, Kansas, USA. Their main products are general aviation aircraft. Although they are the most well known for their small, piston-powered aircraft, they also produce business jets. The company is a subsidiary...

 L-19/O-1 Bird Dog
was a liaison and observation aircraft. It was the first all-metal fixed-wing aircraft
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

 ordered for and by the United States Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

 since the U.S. Army Air Forces
United States Army Air Forces
The United States Army Air Forces was the military aviation arm of the United States of America during and immediately after World War II, and the direct predecessor of the United States Air Force....

 separated from the Army in 1947, becoming its own branch of service, the U.S. Air Force. The Bird Dog had a lengthy career in the U.S. military as well as in other countries.

Design and development

The U.S. Army was searching for an aircraft that could adjust artillery
Artillery
Originally applied to any group of infantry primarily armed with projectile weapons, artillery has over time become limited in meaning to refer only to those engines of war that operate by projection of munitions far beyond the range of effect of personal weapons...

 fire, as well as perform liaison
Liaison aircraft
A liaison aircraft is a small, usually unarmed aircraft primarily used by military forces for artillery observation or transporting commanders and messages. The concept developed before World War II and included also battlefield reconnaissance, air ambulance, column control, light cargo delivery...

 duties, and preferably be constructed of all metal, as the fabric covered liaison aircraft used during World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 (primarily Stinson
Stinson Aircraft Company
The Stinson Aircraft Company was an aircraft manufacturing company in the United States between the 1920s and the 1950s.-The Company:The Stinson Aircraft Company was founded in Dayton, Ohio, in 1920 by aviator Edward “Eddie” Stinson, brother to Katherine Stinson. After five years of business...

 and Piper products) had a short service life. The US Army issued the specification for a two-seat liaison and observation monoplane and the Cessna Aircraft Company
Cessna
The Cessna Aircraft Company is an airplane manufacturing corporation headquartered in Wichita, Kansas, USA. Their main products are general aviation aircraft. Although they are the most well known for their small, piston-powered aircraft, they also produce business jets. The company is a subsidiary...

 submitted the Cessna Model 305A, a development of the Cessna 170
Cessna 170
|-See also:-External links:* *...

. The Cessna 305A was a single-engined, light-weight, strut-braced high-wing monoplane with a tailwheel
Conventional landing gear
thumb|The [[Piper PA-18|Piper Super Cub]] is a popular taildragger aircraft.thumb|right|A [[Cessna 150]] converted to taildragger configuration by installation of an after-market modification kit....

 landing gear. The greatest difference from the Cessna 170 was that the 305A only had two seats, in tandem configuration (the largest tandem-seat aircraft that Cessna ever produced), with angled side windows to improve ground observation. Other differences included a re-designed rear fuselage, providing a view directly to the rear (a feature later dubbed "Omni-View" and carried to Cessna single-engine aircraft after 1964), and transparent panels in the wings' center-section (similar to those found on the Cessna 140
Cessna 140
- See also :...

 and the later Cessna 150
Cessna 150
The Cessna 150 is a two-seat tricycle gear general aviation airplane, that was designed for flight training, touring and personal use.The Cessna 150 is the seventh most produced civilian plane ever, with 23,839 aircraft produced...

 Aerobat model), which allowed the pilot to look directly overhead. A wider door was fitted to allow a stretcher to be loaded.

The U.S. Army awarded a contract to Cessna for 418 aircraft which was designated the L-19A Bird Dog. The prototype Cessna 305 (registration N41694) first flew on 14 December 1949. Deliveries began in December 1950 and the aircraft was soon in use fighting its first war in Korea from 1950 through 1953. An instrument trainer variant was developed in 1953, later versions had constant-speed propellers and the final version the L-19E had a larger gross weight. Cessna produced 3,431 aircraft which was also built under license by Fuji
Fuji Heavy Industries
, or FHI, is a Japanese transportation conglomerate most known for being the manufacturer of Subaru automobiles. It traces its roots to the Nakajima Aircraft Company, a leading supplier of airplanes to the Japanese government during World War II...

 in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

.

The L-19 received the name Bird Dog as a result of a contest held with Cessna
Cessna
The Cessna Aircraft Company is an airplane manufacturing corporation headquartered in Wichita, Kansas, USA. Their main products are general aviation aircraft. Although they are the most well known for their small, piston-powered aircraft, they also produce business jets. The company is a subsidiary...

 employees to name the aircraft. The winning entry, submitted by Jack A. Swayze, an industrial photographer, was selected by a U.S. Army board. The name was chosen because the role of the army's new aircraft was to find the enemy and orbit overhead until artillery (or attack aircraft) could be brought to bear on the enemy. While flying low and close to the battlefield, the pilot would observe the exploding shells and adjust the fire via his radios, in the manner of a bird dog (Gun dog
Gun dog
thumb|right|A group of Gun dogs as printed in Dogs of All Nations by W.E. Mason in 1915Gun dogs, also gundogs or bird dogs, are types of dogs developed to assist hunters in finding and retrieving game, usually birds. Gun dogs are divided into three primary types: Retrievers, flushing dogs, and...

) used by game hunters.

Operational history

The Defense Department
United States Department of Defense
The United States Department of Defense is the U.S...

 ordered 3,200 L-19s that were built between 1950 and 1959. The aircraft were used in various utility roles such as artillery spotting, front line communications, medevac and training. In 1962 the Army L-19 was re-designated the O-1 (Observation) Bird Dog and entered its second war in Vietnam. During the early 1960s the Bird Dog was flown by South Vietnamese airmen (ARVN-Army Republic Vietnam/SVAF South Vietnamese Air Force), US Army aviators, and clandestine (Ravens) aircrews. In 1964 the Department of Defense (DOD) issued a memorandum directing that the U.S. Army turn over its "Fixed Wing" O-1 Bird Dogs to the US Air Force, while the army began its transition to a "rotor-wing" force (helicopters).

The U.S. Army was allowed to retain some O-1 Bird Dogs for artillery observation (spotting/forward air control) until the new army helicopters entered service. All previous operators mentioned above, including the US Army, continued using the O-1 Bird Dog throughout the war, however the bulk of the O-1s were operated by the U.S. Air Force from 1964 until the end of the war in 1975 (flown primarily by South Vietnamese airmen in 1975). During the Vietnam War
Vietnam War
The Vietnam War was a Cold War-era military conflict that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. This war followed the First Indochina War and was fought between North Vietnam, supported by its communist allies, and the government of...

, the aircraft were used for reconnaissance and forward air control
Forward air control
Forward air control is the provision of guidance to Close Air Support aircraft intended to ensure that their attack hits the intended target and does not injure friendly troops. This task is carried out by a forward air controller . For NATO forces the qualifications and experience required to be...

 (FAC). Supplementing the O-1, then gradually replacing it, was the USAF O-2 Skymaster
O-2 Skymaster
The O-2 Skymaster is a military version of the Cessna 337 Super Skymaster utilized as an observation and forward air control aircraft...

, a faster, twin-engine aircraft which entered Vietnam in the mid 1960s. The last U.S. Army O-1 Bird Dog was officially retired in 1974.

During the course of the Vietnam War, 469 O-1 Bird Dogs were lost to all causes. The USAF lost 178, the USMC lost seven, and 284 were lost from the US Army, South Vietnamese Forces, and clandestine operators. Three Bird Dogs were lost to enemy surface-to-air missiles (SAMs).

As the USAF phased out the O-1 in favor of the O-2, many O-1s in the United States were sold as surplus. During the 1970s and 1980s, Ector Aircraft remanufactured many as the Ector Mountaineer with their original powerplants, and as the Ector Super Mountaineer with the Lycoming O-540
Lycoming O-540
|-Specifications :-See also:-External links:...

-A4B5.

Many O-1s were turned over to the Civil Air Patrol
Civil Air Patrol
Civil Air Patrol is a Congressionally chartered, federally supported, non-profit corporation that serves as the official civilian auxiliary of the United States Air Force . CAP is a volunteer organization with an aviation-minded membership that includes people from all backgrounds, lifestyles, and...

 for such duties as aerial search. Many of these were damaged in groundloops and other accidents, and eventually all were replaced by tricycle-gear Cessnas. The only O-1 remaining in CAP inventory is a static display on a post in front of CAP headquarters at Maxwell Air Force Base
Maxwell Air Force Base
Maxwell Air Force Base , officially known as Maxwell-Gunter Air Force Base, is a United States Air Force installation under the Air Education and Training Command . The installation is located in Montgomery, Alabama, US. It was named in honor of Second Lieutenant William C...

. Many of these aircraft were sold to private pilots as recreational aircraft. Others went to museums where they are usually displayed in their military combat markings. Still others found their way to Glider
Glider
Unpowered aircraft are a group of aerial vehicles that can fly without onboard propulsion. They can be classified as gliders, balloons and kites. In this instance, 'flight' means a trajectory that is not merely a vertical descent such as a parachute. In the case of kites, the flight is obtained by...

 clubs in the US as a reliable and powerful vehicle to tow gliders into the air. As with most aircraft used for glider towing, the aircraft has also been outfitted with mirrors mounted to the struts.

In Canada, the Royal Canadian Air Cadets
Royal Canadian Air Cadets
Royal Canadian Air Cadets is a Canadian national youth program for persons aged 12 to 18. It is administered by the Canadian Forces and funded through the Department of National Defence with additional support from the civilian Air Cadet League of Canada...

 use ex CAF L-19 aircraft equipped with a towing rig to tow their Schweizer 2-33A
Schweizer SGS 2-33
The Schweizer SGS 2-33 is a United States two-seat, high-wing, strut-braced, training glider built by Schweizer Aircraft of Elmira, New York....

  gliders for the Air Cadet gliding program. These particular L-19 variants are used in the Atlantic Region, Eastern Region, and Pacific regions. They have been modified for noise reduction by the use of a smaller-diameter, 4-blade Hoffman composite propeller in all regions except Pacific Region and exhaust modification. The fuel delivery system has also been modified from the original design, placing the fuel selector valve closer to the pilot.
The L-19/O-1 is a popular ex-military "warbird" with private pilots. As of June, 2009, more than 330 were registered with the Federal Aviation Administration
Federal Aviation Administration
The Federal Aviation Administration is the national aviation authority of the United States. An agency of the United States Department of Transportation, it has authority to regulate and oversee all aspects of civil aviation in the U.S...

. Others are owned and operated outside the United States by individuals and flying organizations.

Notable flights

On 29 April 1975, the day before the fall of Saigon
Fall of Saigon
The Fall of Saigon was the capture of Saigon, the capital of South Vietnam, by the People's Army of Vietnam and the National Liberation Front on April 30, 1975...

, South Vietnamese Air Force Major Buang-Ly loaded his wife and five children into a two-seat Cessna O-1 Bird Dog and took off from Con Son Island. After evading enemy ground fire Major Buang-Ly headed out to sea and spotted the aircraft carrier USS Midway
USS Midway (CV-41)
USS Midway was an aircraft carrier of the United States Navy, the lead ship of her class, and the first to be commissioned after the end of World War II...

. With only an hour of fuel remaining, he dropped a note asking that the "runway" [sic] be cleared so that he could land. Knowing there was no room for this to happen, Rear Admiral Lawrence Chambers ordered that $10 million (US currency) worth of UH-1 Huey helicopters be pushed overboard into the South China Sea
South China Sea
The South China Sea is a marginal sea that is part of the Pacific Ocean, encompassing an area from the Singapore and Malacca Straits to the Strait of Taiwan of around...

. The Bird Dog that Major Buang-Ly landed is now on display at the National Museum of Naval Aviation
National Museum of Naval Aviation
The National Museum of Naval Aviation is a military and aerospace museum located at Naval Air Station Pensacola, Florida. The museum opened in 1962....

 at Naval Air Station Pensacola
Naval Air Station Pensacola
Naval Air Station Pensacola or NAS Pensacola , "The Cradle of Naval Aviation", is a United States Navy base located next to Warrington, Florida, a community southwest of the Pensacola city limits...

, Florida.

American television personality/actor Ed McMahon
Ed McMahon
Edward Peter "Ed" McMahon, Jr. was an American comedian, game show host and announcer. He is most famous for his work on television as Johnny Carson's sidekick and announcer on The Tonight Show from 1962 to 1992. He also hosted the original version of the talent show Star Search from 1983 to 1995...

 was a Marine Corps aviator and piloted one in Korea, flying more than 80 combat missions during 1953.

The Dash-One (official Operating Manual) for the O-1E issued to USAF pilots in 1970 had the following statement: "rear seat rated for one pilot/observer or two Vietnamese."

Variants

L-19A (Cessna 305A)
Initial production version for United States Army
United States Army
The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

, redesignated O-1A in 1962, 2,486 built.

TL-19A
L-19As converted to dual control trainers, redesignated TO-1A in 1962.

XL-19B
L-19A with a Boeing XT-50-BO-1
Boeing T50
-External links:* * article at bottom of page on earlier Model 500...

 210 shp turboprop
Turboprop
A turboprop engine is a type of turbine engine which drives an aircraft propeller using a reduction gear.The gas turbine is designed specifically for this application, with almost all of its output being used to drive the propeller...

 engine, one built.

XL-19C
L-19A with a Continental CAE XT51-T-1
Continental T51
|-See also:-External links:*...

 210 shp turboprop engine, two built.

TL-19D (Cessna 305B)
Instrument trainer version of the L-19A with dual controls, redesignated TO-1D in 1962, 310 built.

L-19E (Cessna 305C)
Improved version of the L-19A with equipment changes and higher gross weight, became O-1E in 1962, 469 built.

OE-1
60 L-19As delivered to the United States Marine Corps
United States Marine Corps
The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...

, redesignated O-1B in 1962.

OE-2 (Cessna 321)
Redesigned version of the OE-1 with Cessna 180 wings and remodified fuselage, became O-1C in 1962, 27 built.

O-1A
L-19A redesignated in 1962.

TO-1A
O-1As converted as trainers.

O-1B
OE-1 redesignated in 1962.

O-1C
OE-2 redesignated in 1962.

O-1D
A number of TO-1Ds converted for Forward Air Controller duties with the United States Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

.

TO-1D
TL-19D redesignated in 1962.

O-1E
L-19E redesignated in 1962.

O-1F (Cessna 305E)
Forward Air Controller conversions of the O-1D for the USAF.

O-1G (Cessna 305D)
Forward Air Controller conversions of the O-1A for the USAF.

CO-119
SIAI-Marchetti SM.1019
SIAI-Marchetti SM.1019
|-See also:...

Turboprop variant for the Italian Army

Cessna 325
Agricultural variant of the Model 305 with spraybars and a hopper in an enclosed rear cockpit, four built.

Operators

  • Australian Army
    Australian Army
    The Australian Army is Australia's military land force. It is part of the Australian Defence Force along with the Royal Australian Navy and the Royal Australian Air Force. While the Chief of Defence commands the Australian Defence Force , the Army is commanded by the Chief of Army...

     - single example

  • Austrian Air Force
    Austrian Air Force
    The Austrian Air Force is a component part of the Austrian armed forces .-History:The Austrian Air Force was formed in May 1955 by the victorious Allied powers, subject to restrictions on its use of guided missiles...


  • Royal Canadian Air Force
    Royal Canadian Air Force
    The history of the Royal Canadian Air Force begins in 1920, when the air force was created as the Canadian Air Force . In 1924 the CAF was renamed the Royal Canadian Air Force and granted royal sanction by King George V. The RCAF existed as an independent service until 1968...

  • Canadian Army
  • Royal Canadian Air Cadets
    Royal Canadian Air Cadets
    Royal Canadian Air Cadets is a Canadian national youth program for persons aged 12 to 18. It is administered by the Canadian Forces and funded through the Department of National Defence with additional support from the civilian Air Cadet League of Canada...


  • Chilean Air Force
    Chilean Air Force
    The Chilean Air Force is the air force of Chile, a branch of the Chilean military.-History:The first step towards the current FACh was taken by Teniente Coronel Pedro Pablo Dartnell, when he founded the Servicio de Aviación Militar de Chile on December 20, 1910, being trained as a pilot in France...


  • French Army
    French Army
    The French Army, officially the Armée de Terre , is the land-based and largest component of the French Armed Forces.As of 2010, the army employs 123,100 regulars, 18,350 part-time reservists and 7,700 Legionnaires. All soldiers are professionals, following the suspension of conscription, voted in...


  • Indonesian Army
    Indonesian Army
    The Indonesian Army , the land component of the Indonesian Armed Forces, has an estimated strength of 328,517 regular personnel. The force's history began in 1945 when the Tentara Keamanan Rakyat "Civil Security Forces" served as paramilitary and police.Since the nation's independence struggle,...


  • Italian Army
    Italian Army
    The Italian Army is the ground defence force of the Italian Armed Forces. It is all-volunteer force of active-duty personnel, numbering 108,355 in 2010. Its best-known combat vehicles are the Dardo infantry fighting vehicle, the Centauro tank destroyer and the Ariete tank, and among its aircraft...


  • Japanese Ground Self-Defense Force

  • Royal Lao Air Force
    Royal Lao Air Force
    The Royal Lao Air Force was the air force branch of the Military of the Royal Lao Government in the Kingdom of Laos. The RLAF, along with the Royal Lao Navy, and the Royal Lao Army, were placed under the control of the Ministry of Defense in Vientiane....


  • Armed Forces of Malta Air Wing
    Armed Forces of Malta
    The Armed Forces of Malta is the name given to the combined armed services of Malta. The AFM is a brigade sized organisation consisting of a headquarters and three separate battalions, with minimal air and naval forces.- Headquarters, AFM :...


  • Royal Norwegian Air Force
    Royal Norwegian Air Force
    The Royal Norwegian Air Force is the air force of Norway. It was established as a separate arm of the Norwegian armed forces on 10 November 1944. The RNoAF's peace force is approximately 1,430 employees . 600 personnel also serve their draft period in the RNoAF...


  • Pakistan Army
    Pakistan Army
    The Pakistan Army is the branch of the Pakistani Armed Forces responsible for land-based military operations. The Pakistan Army came into existence after the Partition of India and the resulting independence of Pakistan in 1947. It is currently headed by General Ashfaq Parvez Kayani. The Pakistan...


  • Philippine Air Force
    Philippine Air Force
    The Philippine Air Force is the air force of the Republic of the Philippines, and one of the three main services of the Armed Forces of the Philippines. Its official name in Filipino is Hukbong Himpapawid ng Pilipinas....

  • Philippine Navy
    Philippine Navy
    The Philippine Navy is the naval arm of the Armed Forces of the Philippines . Its official name in Filipino is Hukbong Dagat ng Pilipinas, literally, "Sea Force of the Philippines"....

  • Philippine Army
    Philippine Army
    The Philippine Army is the ground arm of the Armed Forces of the Philippines . Its official name in Tagalog is Hukbong Katihan ng Pilipinas. On July 23, 2010, President Benigno Aquino III appointed Maj. Gen...



 South Vietnam
  • Vietnam Air Force
    Vietnam Air Force
    The Vietnam Air Force began with a few hand-picked men chosen to fly alongside French pilots during the State of Vietnam era. It eventually grew into the world’s sixth largest air force at the height of its power, in 1974...


  • Spanish Air Force
    Spanish Air Force
    -The early stages:Hot air balloons had been used with military purposes in Spain as far back as 1896. In 1905, with the help of Alfredo Kindelán, Leonardo Torres y Quevedo directed the construction of the first Spanish dirigible in the Army Military Aerostatics Service, created in 1896 and located...


  • Republic of China Army
    Republic of China Army
    The ROC Army's current operational strength includes 3 armies, 5 corps. As of 2005, the Army's 35 brigades include 25 infantry brigades, 5 armoured brigades and 3 mechanized infantry brigades...

  • Republic of China Marine Corps
    Republic of China Marine Corps
    Republic of China Marine CorpsPersonnel15,000 The Republic of China Marine Corps is the amphibious arm of the Republic of China Navy responsible for amphibious combat, counter-landing and reinforcement of the main island of Taiwan, remote islands, defense of ROCN facilities, and also functions as...


  • Royal Thai Air Force
    Royal Thai Air Force
    The Royal Thai Air Force or RTAF is the air force of the Kingdom of Thailand. Since its establishment in 1913, as one of the earliest air forces of Asia, the Royal Thai Air Force had engaged in many major and minor battles. During the Vietnam war era, the air force has been developed with USAF-aid...

  • Royal Thai Army
  • Royal Thai Navy
    Royal Thai Navy
    The Royal Thai Navy is the navy of Thailand and part of the Royal Thai Armed Forces, it was established in the late 19th century. Admiral Prince Abhakara Kiartiwongse is "The Father of Royal Thai Navy". Similar to the organizational structure of the United States, the Royal Thai Navy includes the...


  • Civil Air Patrol
    Civil Air Patrol
    Civil Air Patrol is a Congressionally chartered, federally supported, non-profit corporation that serves as the official civilian auxiliary of the United States Air Force . CAP is a volunteer organization with an aviation-minded membership that includes people from all backgrounds, lifestyles, and...

  • United States Air Force
    United States Air Force
    The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

  • United States Army
    United States Army
    The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

  • United States Marine Corps
    United States Marine Corps
    The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...


  • Vietnam People's Air Force
    Vietnam People's Air Force
    The Vietnam People's Air Force is the air force of Vietnam. It is the successor of the former North Vietnamese Air Force and the absorbed Republic of Vietnam Air Force following the re-unification of Vietnam in 1975.-Beginning-1964 :The first Vietnamese aircraft were two trainers, a de Havilland...

     (captured South Vietnamese aircraft)

Specifications (O-1E)

See also

External links

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