Fokker S-11

Last updated
S-11 Instructor
Fokker S-11 (cropped).jpg
A former Royal Netherlands Navy S-11
General information
TypeTrainer
Manufacturer Fokker
Primary users Royal Netherlands Air Force
Number builtS-11 375
S-12 50
YT-22 1
History
First flight18 December 1947

The Fokker S-11 Instructor is a single-engine two-seater propeller aircraft designed and manufactured by the Dutch aircraft manufacturer Fokker. It first flew in December 1947 and went on production, serving in several Air Forces in the late 20th century, including with Dutch, Italian, Israeli, Paraguay, Bolivian and Brazilian armed forces. The S-12 was a tricycle landing version of this aircraft.

Contents

History

One of the first activities undertaken by Fokker after World War II was the design of a new military aircraft for elementary flying training, the S-11 Instructor. An aircraft trader already placed orders for 100 of these aircraft in 1946, before construction had even begun. The first prototype flew at Schiphol on 18 December 1947. During testing in early 1948 it was found that some aerodynamic changes had to be made to improve the handling of the aircraft. Later that year demonstration flights for several air forces followed and eventually many S-11s were sold to the Royal Netherlands Air Force, Israeli Air Force, Italian Air Force, Brazilian Air Force, Paraguayan Air Force and Bolivian Air Force. Some 170 aircraft were license built in Italy as the Macchi M.416. A limited number of S-11 Instructors are still flying today. The Dutch Fokker Four foundation, dedicated to the preservation of the aircraft, operates four S-11s and amongst other activities still performs with them on airshows.

A version of the S-11 fitted with tricycle landing gear, the S-12, was built by Fokker Industria Aeronautica in Brazil, and was used by the Brazilian Air Force as the T-22 Instructor.

In Italy, 178 were produced under license by Macchi, and they were called M.416. [1]

The aircraft is a two seat piston-powered monoplane with maximum take of weight of 1100 kg (2425 lb) and a top speed of 209 km/h (130 mph, 113 kts). [2]

Variants

S-11
Prototypes - four built
S-11-1
Production variant for the Royal Netherlands Air Force and the Naval Aviation Service of the Royal Netherlands Navy- 48 built.
S-11-2
Production variant for the Israeli Air Force - 41 built.
S-11-3
Production variant for the Italian Air Force - 180 built under license by Aermacchi (Qty 110) and IMAM (Qty 70) as the M.416
S-11-4
Production variant for the Brazilian Air Force - 99 built including 95 by Fokker Brazil.
S-12
Tricycle landing gear variant, one prototype built by Fokker and 49 production aircraft for the Brazilian Air Force built by Fokker Brazil.
Macchi M.416
Name used for licence built S-11-3 for the Italian Air Force.
T-21
Brazilian Air Force designation for the S-11-4. [3]
T-22
Brazilian Air Force designation for the S-12. [3]
YT-22 Guanabara
Brazilian built four-seat tricycle landing gear variant, one built


Operators

S-12 prototype in Dutch civilian markings Fokker S12.jpg
S-12 prototype in Dutch civilian markings
Flag of Brazil.svg  Brazil
Flag of Bolivia.svg  Bolivia
Flag of Israel.svg  Israel
Flag of Italy.svg  Italy
Flag of the Netherlands.svg  Netherlands
Flag of Paraguay.svg  Paraguay

Aircraft on display

Brazil

T-21

Italy

Macchi416 at the Italian Air Force Museum Macchi M416 MM53762 AA-48 (6570999753).jpg
Macchi416 at the Italian Air Force Museum
Macchi M.416

Netherlands

S-11
S-12

Known airworthy aircraft

Netherlands

S-11-1

Also known as 'The Fokker Four Foundation', an organization of Dutch volunteers that operate a fleet of four Fokker S-11 'Instructor' aircraft, that are able to fly and are shown to the public, at various airshows around Europe. They are based at The Aviodrome museum at Lelystad Airport, Netherlands. [13]

United States of America

Specifications (S-11)

Data from Jane's All The World's Aircraft 1953–54. [19]

General characteristics

Performance

See also

Aircraft of comparable role, configuration, and era

References

  1. ↑ "FOKKER S.11 INSTRUCTOR". Flight Manuals. Retrieved 2023-10-26.
  2. ↑ "Fokker S-11 Instructor - Specifications - Technical Data / Description". www.flugzeuginfo.net. Retrieved 2023-10-26.
  3. 1 2 "Brazilian Military Aircraft Designations". designation-systems.net. Retrieved 2025-03-17.
  4. ↑ .aeroflight
  5. ↑ Airhistory.net / 0789
  6. ↑ Museo Storico Aeronautica Militare / MACCHI M-416 (in Italian)
  7. ↑ Eurodemobbed / Milan - Volandia museum, Italy
  8. ↑ S-11 / E-22 Archived 2017-10-14 at the Wayback Machine Nationaal Militair Museum Retrieved: 14 October 2017.
  9. ↑ S-11 / E-24 Archived 2017-10-15 at the Wayback Machine Nationaal Militair Museum Retrieved: 14 October 2017.
  10. ↑ S-12 / PH-NDC
  11. ↑ HDekker.info / PH-NAA - PH-NZZ (in Dutch)
  12. ↑ Fokker Four / Onze vliegtuigen (in Dutch)
  13. ↑ "Stichting Fokker Four". Stichting Fokker Four (in Dutch). Retrieved 17 June 2022.
  14. ↑ KLu Historische Vlucht / Fokker S11 “Instructor”
  15. ↑ AirOnline / PH-ACG Fokker S.11.1 Instructor maakt weer geluid (in Dutch)
  16. ↑
  17. ↑ AirOnline / Fokker S.11. OO-LMC keert terug naar Nederland als PH-SII (in Dutch)
  18. ↑ FlightAware / N911J Aircraft Registration)
  19. ↑ Bridgman 1953, pp. 169–170.
  20. ↑ Smith 1949, p.220.

Bibliography

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