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Fokker S.14 Machtrainer


Advanced Jet Trainer (AJT) (1955)


Aviation / Aerospace

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The Fokker S.14 Machtrainer was a promising post-World War 2 jet-powered design to emerge from The Netherlands - only twenty-one were produced.



Authored By: Staff Writer | Last Edited: 12/09/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
With the rise in turbojet-powered aircraft use at the military level came the need for dedicated jet trainers. One of the first to fulfill the role became the Dutch Fokker S.14 "Machtrainer", the design arriving in the early 1950s as the shift from prop-driven types towards turbojets continued. Powered by the British Rolls-Royce "Derwent" turbojet engine, the twin-seat aircraft was not an outright success and only taken on by the Royal Netherlands Air Force (RNAF) with twenty-one examples built in all (including a single prototype).

Contemporaries of this aircraft were the American Cessna T-37 "Tweet" (1,269 built) and Lockheed T-33 "Shooting Star" (6,557 built) and French Fouga "Magister" (929 built) - all which achieved greater success than the Dutch offering.

Like other aircraft of this kind, the Machtrainer saw its roots in the 1940s as jet technology continued to be improved and become more commonplace. The Machtrainer was born as a joint venture with engine-maker Rolls-Royce, the latter looking to market its Derwent turbojet to the masses. This resulted in the "S.14" which flew for the first time, in prototype form, on May 19th, 1951.

The aircraft's external design was conventional as jet trainers of the period went - with the major exception being the side-by-side seating for the two crewmen. The single engine was buried within the fuselage and aspirated through a circular, bifurcated nose-mounted intake and exhausted through a traditional ring at the rear. The mainplanes were seated low against the sides of the fuselage and given some dihedral. The cockpit was placed just aft of the cut-off nose section. The tail unit was comprised of a single vertical fin and low-set horizontal planes. The undercarriage was of tricycle arrangement - wheeled and retractable.

As finalized, the Machtrainer had a running length of 43.7 feet, a wingspan of 39.3 feet, and a height of 15.4 feet. Empty weight was 8,300 lb while gross weight reached 12,000lb. The Rolls-Royce Derwent 8 series turbojet produced 3,450lb of thrust and provided the platform with a maximum speed of 450 miles-per-hour, a cruising speed near 365 mph, a range out to 600 miles, and a service ceiling up to 37,700 feet (requiring oxygen and pressurization for the cockpit and its crew of two). Rate-of-climb was 3,210 feet-per-minute.

The type was adopted by the RNAF through a contract order for twenty airframes in an attempt to boost to the project on the global stage. Service entry with the branch was had in 1955 and, despite some global interest, the S.14 never made headway into the world market despite the growing need for advanced jet-powered trainer-minded types. This led to the aforementioned twenty examples plus one prototype to be realized in all. Dutch S.14 trainers flew into 1967 before they were given up for good - filling their roles faithfully for their time in the air.

Specifications



Service Year
1955

Origin
Netherlands national flag graphic
Netherlands

Status
RETIRED
Not in Service.
Crew
2

Production
21
UNITS


Fokker - Netherlands
National flag of the Netherlands Netherlands
(OPERATORS list includes past, present, and future operators when applicable)
Training (General)
Developed ability to be used as a dedicated trainer for student pilots (typically under the supervision of an instructor).


Length
43.6 ft
(13.30 m)
Width/Span
39.4 ft
(12.00 m)
Height
15.4 ft
(4.70 m)
Empty Wgt
8,300 lb
(3,765 kg)
MTOW
11,795 lb
(5,350 kg)
Wgt Diff
+3,494 lb
(+1,585 kg)
(Showcased structural values pertain to the Fokker S.14 production variant)
Installed: 1 x Rolls-Royce Derwent 8 turbojet engine developing 3,450lb of thrust.
Max Speed
454 mph
(730 kph | 394 kts)
Ceiling
37,730 ft
(11,500 m | 7 mi)
Range
590 mi
(950 km | 1,759 nm)
Rate-of-Climb
3,210 ft/min
(978 m/min)


♦ MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the Fokker S.14 production variant. Compare this aircraft entry against any other in our database. View aircraft by powerplant type)
None.


S.14 "Machtrainer" - Base Series Designation; 20 production examples following single prototype completed.


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