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Fokker S.13 Universal Trainer
In the early years after World War II, Fokker was resurrected with help from the national institute for aircraft development, the Nederlands Instituut voor Vliegtuigontwikkeling (NIV).
Fokker expected strong demand for training aircraft, and therefore a range of designs were worked out.
One of those became known as the S.13.
This model, dubbed Universal Trainer, was meant to be trainer for multiple engine, navigation, paratrooper and radiotelephony training.
Fokker also envisaged a version for water operations, dubbed S.13W.
This version had slightly different dimensions and less performance, mainly because of the floats that replaced the landing gear.
Also a version for civil use was foreseen.
The prototype with registration PH-NDW (changed to PH-NEI in 1954) made its maiden flight in 1949.
The aircraft proved to be easy handling and strong.
Flight testing was successful and the Dutch armed forces intended to buy the aircraft.
Shortly before deciding upon procurement, the Dutch armed forces were provided with Beechcraft Model 18s under the Mutual Defence Assistance Pact (MDAP), almost for free.
As other parties did not show interest in the S.13, Fokker terminated the program.
13.6 m (44 ft 7 in)
19.2 m (63 ft 0 in)
5.5 m (18 ft 1 in)
46.0 m2 (495 sq ft)
4,185 kg (9,226 lb)
5,775 kg (12,732 lb)
1,200 L (320 US gal; 260 imp gal)
2 × Pratt & Whitney R-1340 Wasp S1H1-G 9-cylinder air cooled radial engines, 450 kW (600 hp) each
335 km/h (208 mph, 181 kn) 2,440 m (8,010 ft)
320 km/h (200 mph, 170 kn) at 3,600 m (11,800 ft)
6,500 m (21,300 ft)
Time to altitude
2.7 min to 1,000 m (3,300 ft)
9.2 min to 3,000 m (9,800 ft).
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