Breguet 14

Breguet 14

Picture - Polish Breguet 14 during the Kiev Offensive

Role: Bomber
Manufacturer: Breguet
First flight: November 21, 1916
Introduced: 1917
Primary users: Aéronautique Militaire US Army Air Service Polish Air Force
Produced: 1916-1928
Number built: ca 7,800

The Breguet 14 was a French biplane bomber and reconnaissance aircraft of World War I. It was built in very large numbers and production continued for many years after the end of the war. Apart from its widespread usage, it was noteworthy for becoming the first aircraft in mass production to use large amounts of metal rather than wood in its structure. This allowed the airframe to be lighter than a wooden airframe of the same strength, in turn making the aircraft very fast and agile for its size, able to outrun many of the fighters of the day. Its strong construction was able to sustain much damage, it was easy to handle and had good performance. The Breguet 14 is often considered one of the best aircraft of the war.

Design and development

The aircraft was designed by Louis Breguet, who flew the first prototype (originally designated Breguet AV Type XIV) on its first flight on 21 November 1916. The design was a come-back for Breguet to designing conventional planes, after designing pusher-type aircraft Breguet BUM. Later that month, the French Army's Section Technique de l' Aéronautique (S.T.Aé.) issued requirements for four different new aircraft types. Breguet submitted his new design for two of those categories - reconnaissance aircraft, and bomber.

Following evaluation in February, the Breguet 14 was accepted for both these roles, and in March, orders were placed for 150 reconnaissance aircraft and 100 bombers, designated Breguet 14A.2 and 14B.2 respectively (by 1918 written Breguet XIV A2/B2). The A.2 was equipped with a camera, with some carrying radios, while the lower wing of the 14B.2 was modified slightly in order to accommodate bomb racks (built by Michelin). Both variants featured automatic flaps, but these were not fitted to production aircraft.

Other minor variants flown in small numbers during the war included the 14B.1 long-range single-seat bomber, the 14GR.2 long-range reconnaissance, the 14H floatplane, the 14S air ambulance and the 14Et.2 trainer. Later variants 14bis A2 and 14bis B2 featured improved wing. An improved variant with bigger wings was the 16. There was also the two-seat fighter 17, which was built in small numbers only.

Operational history

Following successful deployment by the French, the type was also ordered by the Belgian Army (40 aircraft) and the United States Army Air Service (over 600 aircraft). Around half the Belgian and US aircraft were fitted with Fiat A.12 engines due to shortages of the original Renault 12F. By the end of World War I, some 5,500 Breguet 14s had been produced.

The type continued to be widely used after the war, equipping the French occupation forces in Germany and being deployed to support French troops in the colonies. A special version was developed for the harsh conditions encountered overseas, designated 14TOE (Théatres des Operations Extérieures). These saw service in putting down uprisings in Syria and Morocco, in Vietnam and in France's attempted intervention in the Russian Civil War. The last trainer examples were not withdrawn from French military service until 1932.

Other air arms using the type included Brazil (30), China (70), Czechoslovakia (10), Denmark, Finland (38), Greece, Japan, Siamese Air Force, Uruguay (9) and Spain. Polish Air Force used 158 Breguet 14s, about 70 of them were used in combat in the Polish-Soviet war. In Japan, Breguet 14s were licence built by Nakajima.

Post war, Breguet had also begun to manufacture dedicated civil versions. The 14T.2 Salon carried two passengers in a specially modified fuselage. An improved version of this was the 14Tbis manufactured as both a land-plane and seaplane. The 14Tbis also formed the basis of the improved 14Tbis Sanitaire air ambulance version, and 100 mail planes custom-built for Pierre Latécox¨re's fledgling airline, Lignes Aeriennes Latécox¨re. After changing name to CGEA, the airline used among others 106 Breguet 14s for flights over Sahara desert. The 18T was a single 14T re-engined with a Renault Ja engine and equipped to carry four passengers. When production finally ceased in 1928, the total of all versions built had reached 7,800 (according to other sources, 8,000 or even 8,370).

Operators

Belgium

Belgian Air Force

Brazil

Brazilian Air Force

China

Nationalist Chinese Air Force

Czechoslovakia

Czechoslovak Air Force

Denmark

Danish Air Force

Estonia

Estonian Air Force operated one aircraft only.

Finland

Finnish Air Force

France

Armée de l'Air

Greece

Royal Hellenic Air Force

Guatemala

Guatemalan Air Force

Japan

Imperial Japanese Army Air Force

Lithuania

Lithuanian Air Force operated two aircraft.

Persia

Persian Air Force received two aircraft.

Paraguay

Paraguayan Air Arm - 1 aircraft used in the Revolution of 1922.

Poland

Polish Air Force

Portugal

Portuguese Air Force

Romania

Royal Romanian Air Force

Soviet Union

Soviet Air Force

Serbia

Serbian Air Force

Sweden

Swedish Air Force received one aircraft only.

Siam

Royal Thai Air Force

Turkey

Turkish Air Force

United States

United States Army Air Force

Uruguay

Uruguayan Air Force

Kingdom of Yugoslavia

Yugoslav Royal Air Force

Specifications (14B.2)

Data from {name of first source}

General characteristics

Crew: Two
Length: 8.87 m (29 ft 1 in)
Wingspan: 14.36 m (47 ft 1 in)
Height: 3.30 m (10 ft 10 in)
Wing area: 47.50 m² (511 ft²)
Empty weight: 1,010 kg (2,227 lb)
Max takeoff weight: 1,536 kg (3,386 lb)
Powerplant: 1x— Renault 12Fe, 224 kW (300 hp)

Performance

Maximum speed: 175 km/h (95 kn, 109 mph)
Range: 900 km (486 nmi, 560 mi)
Service ceiling: 6,000 m (19,685 ft)
Rate of climb: 292 m/s (960 ft/min)
Wing loading: 32 kg/m² (6.6 lb/ft²)
Power/mass: 0.14 W/kg (0.09 hp/lb)

Armament

Guns: 1 x— fixed 7.7 mm (.303 in) Vickers machine gun
2 x— flexible 7.7 mm (.303 in) Lewis Gun for observer
Bombs: 300 kg (660 lb)

Related development

Breguet 16 - Breguet 17

Comparable aircraft

Airco DH.4 - Airco D.H.9 - Salmson 2

Tomasz J. Kowalski, Samolot Breguet 14, TBiU no.197, Warsaw 2002, ISBN 83-11-09461-6 (Polish language)

Breguet 14 Pictures and Breguet 14 for Sale.

Living Warbirds: The best warbirds DVD series.

Source: WikiPedia