Marinens Flyvebaatfabrikk M.F.2

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Marinens Flyvebaatfabrikk M.F.2
RoleMaritime reconnaissance, bomber
Manufacturer Marinens Flyvebaatfabrikk [1]
Designer Halfdan Gyth Dehli [1]
Introduction 1916
Retired2 October 1924
Primary user Royal Norwegian Navy Air Service
Produced19161918
Number built3
Developed from M.F.1

The Marinens Flyvebaatfabrikk M.F.2 was a two-seat military biplane floatplane produced by Marinens Flyvebaatfabrikk in 1915 and 1916. It was designed by naval captain Halfdan Gyth Dehli, based on former models by French designer Maurice Farman and improvements by Einar Sem-Jacobsen of the Norwegian Army Air Service's aircraft factory Kjeller Flyfabrikk. [1]

Biplane Airplane wing configuration with two vertically stacked main flying surfaces

A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a biplane wing structure has a structural advantage over a monoplane, it produces more drag than a similar unbraced or cantilever monoplane wing. Improved structural techniques, better materials and the quest for greater speed made the biplane configuration obsolete for most purposes by the late 1930s.

Floatplane aircraft equipped with floats for operation from water surfaces

A floatplane is a type of seaplane with one or more slender floats mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, making the vehicle an amphibious aircraft. British usage is to call "floatplanes" "seaplanes" rather than use the term "seaplane" to refer to both floatplanes and flying boats.

Marinens Flyvebaatfabrikk - The Navy's Flying Boat Factory - was the Royal Norwegian Navy Air Service' aeroplane manufacturer. It was established in Horten in 1915 and produced 120 aircraft from then until it ceased to exist in 1940.

Contents

Background

The M.F.2 was the second type of aircraft manufactured by Marinens Flyvebaatfabrikk, and was financed by the extraordinary appropriations to the Norwegian Armed Forces after the outbreak of the First World War. [2]

Norwegian Armed Forces military organization responsible for the defence of Norway

The Norwegian Armed Forces is the military organisation responsible for the defence of Norway. It consists of four branches, the Norwegian Army, the Royal Norwegian Navy, which includes the Coast Guard, the Royal Norwegian Air Force, and the Home Guard, as well as several joint departments.

World War I 1914–1918 global war starting in Europe

World War I, also known as the First World War or the Great War, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. Contemporaneously described as "the war to end all wars", it led to the mobilisation of more than 70 million military personnel, including 60 million Europeans, making it one of the largest wars in history. It is also one of the deadliest conflicts in history, with an estimated nine million combatants and seven million civilian deaths as a direct result of the war, while resulting genocides and the resulting 1918 influenza pandemic caused another 50 to 100 million deaths worldwide.

Production

Two examples of the M.F.2 were delivered from the Marinens Flyvebaatfabrikk in the summer of 1916, with the numerals F.10 and F.12. A third example, F.10 (II), was delivered in March 1918, replacing the original F.10, which had crashed at Karljohansvern naval base on 21 April 1917 after a total of 22 hours flying time. [2] [3]

Karljohansvern

Karjohansvern at Horten was the main base for the Royal Norwegian Navy from 1819 to 1963.

Service

The M.F.2s were employed for neutrality protection patrols, in addition to being used for student pilots taking their certificates. The M.F.2s were based at the Royal Norwegian Navy's main naval base at Karljohansvern in Horten until July 1918, when F.10 (II) and F.12 were redeployed to the newly established naval station at Kristiansand. [4] The M.F.2s were part of the First Aerial Group prior to the move to Kristiansand. [5] At Kristiansand the two M.F.2s served together with three Sopwith Baby seaplane fighters, and were housed in two aircraft sheds. [6]

Pilot licensing or certification refers to permits on how to operate aircraft that are issued by the Civil Aviation Authority (CAA) in each country, establishing that the holder has met a specific set of knowledge and experience requirements. This includes taking a flying test. The certified pilot can then exercise a specific set of privileges in that nation's airspace. Despite attempts to harmonize the requirements between nations, the differences in certification practices and standards from place to place serve to limit full international validity of the national qualifications. In addition, U.S. pilots are certified, not licensed, although the word license is still commonly used informally. Legally, pilot certificates can be revoked by administrative action, whereas licensing requires intervention by the judiciary system.

Royal Norwegian Navy branch of the Norwegian Armed Forces responsible for naval operations

The Royal Norwegian Navy is the branch of the Norwegian Armed Forces responsible for naval operations of the state of Norway. As of 2008, the RNoN consists of approximately 3,700 personnel and 70 vessels, including 4 heavy frigates, 6 submarines, 14 patrol boats, 4 minesweepers, 4 minehunters, 1 mine detection vessel, 4 support vessels and 2 training vessels. The navy also includes the Coast Guard.

Horten Municipality in Vestfold, Norway

Horten  is a town and municipality in Vestfold county, Norway—located along the Oslofjord. The administrative centre of the municipality is the town of Horten. The municipality also includes the town of Åsgårdstrand and the villages of Borre, Skoppum, and Nykirke.

The M.F.2 type served with the Royal Norwegian Navy Air Service until 2 October 1924, when F.12 was written off after 95 hours and 30 minutes of flying time. F.10 (II) had been wrecked during takeoff from Kristiansand naval air station on 22 July 1919. [3]

The engine of the M.F.2 was a 150 hp Sunbeam V8. The aircraft was equipped with a radio transmitter. It was armed with a fixed Madsen machine gun and could carry a bomb load of 2 x 50 kg, in the form of two small bombs or mines. [1] [2] The M.F.2 was the first aircraft operated by the Royal Norwegian Navy Air Service that had permanent armament, or could carry a bomb load. The preceding Rumpler Etrich Taube, Maurice Farman MF.7 and Marinens Flyvebaatfabrikk M.F.1 types had only been able to carry carbines and pistols. [7]

Horsepower Unit of power

Horsepower (hp) is a unit of measurement of power, or the rate at which work is done. There are many different standards and types of horsepower. Two common definitions being used today are the mechanical horsepower, which is about 745.7 watts, and the metric horsepower, which is approximately 735.5 watts.

Sunbeam Motor Car Company automotive and engineering manufacturer

Sunbeam Motor Car Company Limited was a British motor car manufacturer with its works at Moorfields in Blakenhall, a suburb of Wolverhampton in the county of Staffordshire, now West Midlands. Its Sunbeam name had been registered by John Marston in 1888 for his bicycle manufacturing business. Sunbeam motor car manufacture began in 1901. The motor business was sold to a newly incorporated Sunbeam Motor Car Company Limited in 1905 to separate it from Marston's pedal bicycle business; Sunbeam motorcycles were not made until 1912.

V8 engine piston engine with eight cylinders in vee configuration

A V8 engine is an eight-cylinder V configuration engine with the cylinders mounted on the crankcase in two sets of four, with all eight pistons driving a common crankshaft. Most banks are set at a right angle (90°) to each other, some at a narrower angle, with 45°, 60°, and 72° most common.

The wings of the M.F.2 were shorter than those of the M.F.1, and the tail section of the M.F.2 was completely different from its predecessor and included a new elevators and rudders. [2]

Specifications

Data from Marinens Flygevåpen 19121944 [3]

General characteristics

Performance

Armament

|power main=150160 hp

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References

  1. 1 2 3 4 Henriksen 1994: 6466
  2. 1 2 3 4 Hafsten 2003: 20
  3. 1 2 3 Hafsten 2003: 209
  4. Hafsten 2003: 2021
  5. Hafsten 2003: 21
  6. Hafsten 2003: 38
  7. Hafsten 2003: 207209

Bibliography