A floatplane has slender pontoons mounted under the fuselage. Two floats are common, but other configurations are possible. Only the "floats" of a floatplane normally come into contact with water. The fuselage remains above water. Some small land aircraft can be modified to become float planes and in general floatplanes are small aircraft. Floatplanes are limited by their ability to handle wave heights typically greater than 12 inches (0.31 m). These float pontoons add to the empty weight of the airplane, and to the drag coefficient, resulting in reduced payload capacity, slower rate-of-climb and slower cruise speed.

Russian Floatplanes 1912

Sikorsky S-5a

Sikorsky S-5a - 1912
Sikorsky S-5a - 1912

With the S-5, Igor Sikorsky's fortunes began to change. Completed in late April 1911, with a 50hp Argus water-cooled engine, it was tested in a series of 20 to 30-second straight-line flights over a period of three weeks before the young designer was able to make what he called his first real flight of four minutes, in a circuit of the field, on 17 May.
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Sikorsky S-5a
  • Type: reconnaissance floatplane
  • National Origin: Russia
  • Designer: Igor Sikorsky
  • Entered Service: September 1914
  • Powerplant
    • 1 × Gnome (Rhone); engine 60hp
    • 1 × Gnome engine 80hp
    • Length: 8.0
    • Wing Span: 12.0/8.5m
    • Wing Area: 32.2m²2
    • Crew: 2
    • Armament: None

References

  1. "S-5/S-5A, I.I.Sikorsky" Retreived Nov. 6, 2010 from http://www.ctrl-c.liu.se/misc/RAM/s-5.html
  2. Finne, K.N. "Igor Sikorsky - The Russian Years " Editors : Carl J. Bobrow, Von Hardesty; Translated and adapted by Von Hardesty; Smithsonian Institution Press, Washington, D.C. ISBN 0 87474 274 9
  3. Shavrov, V.B. "History of aircraft construction in the USSR (Istoriya Konstruktsij Samoletov v SSSR.)" Vol 1-2. Moskva, Mashinostroenie, 1994. ISBN 5-217-02528-X

Russian Floatplanes 1913

Sikorsky S-10

Sikorsky S-10 - 1913
Sikorsky S-10 - 1913

The Sikorsky S-10 was a Russian military twin-float seaplane built by the RBVZ that served with the Baltic Fleet from the summer of 1913 to 1915. After Igor

Sikorsky built the successful Sikorsky S-6 for the Russian military, he tried to build another successful aircraft for them. The S-10 was a modified S-6B built by the Russo-Baltic Carriage Factory. Approximately sixteen production versions of the S-10 were built. It had a less powerful engine and generally weaker structure than the S-6. They had either a 80 HP Gnome Monosoupape or a 100 HP Argus Motoren engine. Some were deployed on the world's first operational seaplane carriers.
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Sikorsky (RBVZ) S-10
  • Type: Twin-float seaplane
  • Designer: Igor Sikorsky
  • Manfacturer: Russo-Baltic Carriage Factory
  • Entered Service: Summer of 1913
  • Retired: 1915
  • Production versions: 16
  • Primary Operator: Russia - Russian Navy - Baltic Fleet
  • Powerplant:
    • 1× Gnome Monosoupape Rotary engine, 80HP (60kW)
    • 1× Argus Motoren Rotary engine, 100HP (75 kW)
  • Wingspan: 13.7 m (45 ft)
  • Empty weight: 550 kg (1213 lb)
  • Loaded weight: 850 kg (1874 lb)
  • Power Load: 12.7 kg/HP
  • Wing Load: 22kg/m²
  • Maximum Speed: 99km/h
  • Range: 500km (310 miles)
  • Crew: 2
  • Capacity: 3
  • Armament: none

References

  1. RBVZ S-10. (2010, October 14). In Wikipedia, The Free Encyclopedia. Retrieved 22:22, November 6, 2010, from http://en.wikipedia.org/w/index.php?title=RBVZ_S-10&oldid=390685334
  2. S-10, Sikorsky Retrieved 22:22, November 6, 2010, from http://www.ctrl-c.liu.se/misc/RAM/s-10.html
  3. Shavrov, V.B. "History of aircraft construction in the USSR (Istoriya Konstruktsij Samoletov v SSSR.)" Vol 1, pp. 94-95. Moskva, Mashinostroenie, 1994. ISBN 5-217-02528-X

Russian Floatplanes 1916

Grigorovich M-16

Grigorovich M-16
Grigorovich M-16 - 1916

The Grigorovich M-16 was a reconnaissance floatplane, and not a flying boat as some sources claim. It was used by both the Russian Empire and Estonia during World War 1. The Russian Navy use it for performing coastal observation patrols.

Grigorovich M-16
  • Type: reconnaissance floatplane
  • National Origin: Russia
  • Manufacturer: Shchetinin
  • Designed by: Dmitri Grigorovich
  • First Flight: 1916
  • Primary users:
    • Russian navy
    • Estonian Air Force
  • Powerplant: 1 × 150hp Salmson engine
  • Wingspan: 56 ft 9 in (17.0 m)
  • Wing area: 665.21 ft² (61.8 m²)
  • Length: 28 ft 3 in (8.6 m)
  • Maximum speed: 68 mph (110 kmh)
  • Crew: 2

References

  1. Grigorovich M-16 Omega Models Retrieved 02:22, November 6, 2010
  2. Grigorovich M-16 Retrieved 22:20, November 6, 2010, from http://www.aviastar.org/air/russia/grigorovich_m-16.php
  3. Grigorovich M-16 Wing Palette Retrieved 22:25, November 6, 2010, from http://wp.scn.ru/en/ww1/h/1718