The first American Fokker design was the Universal, The brainchild of Noorduyn, it was a great commercial success.
The wheel undercarriage of the Universal was interchangeable with floats or skis, a feature which made it very popular in Canada and the USA.
The F.X and its variants were developed and built in the Factory at Hasbrouck Heights under the guidance of the chief designer, Mr Alfred Gassner. In April 1927 the first F.X made its debut. Western Air was first to buy, with an order for three of these 12 seat airliners.
The Fokker F.XA was a bigger version of the 12 seater F.X airliner. It had seats for 14 passengers and was used on American routes. Pan American Airways flew F.XAs between Key West and Havana, Cuba, a route which included 100 miles over the sea.
The US Army used obtained one as the C 5 in 1927 and one flew with the USMC as the RA 4, also in 1927.
The Fokker S.IV was a military trainer aircraft produced in the Netherlands in the mid-1920s. It was a conventional, single-bay biplane with staggered wings of unequal span braced with N-struts, essentially a radial-engined development of the S.III. The pilot and instructor sat in tandem, open cockpits and the undercarriage was of fixed, tailskid type with a cross-axle between the main units.
The Royal Netherlands Army Aviation Group purchased 30 examples and used them right up to the German invasion of the Netherlands in 1940. On 14 May that year, a few surviving S.IVs escaped to France alongside some S.IX trainers, but never flew again.
The S.IV could be powered by a variety of engines in the 75–97 kW (100–130 hp) range, including 110 hp (82 kW) Siemens-Halske Sh 11, 110 hp (82 kW) Le Rhône 9J, 130 hp (97 kW) Bristol Lucifer, 130 hp (97 kW) Armstrong-Siddeley Mongoose, 110 hp (82 kW) Oberursel UR.II or the 130 hp (97 kW) Clerget 9B.
Fokker S.IV
Powerplant: 1 × Le Rhône 9J, 82 kW (110 hp)
Propeller: 2-bladed fixed pitch
Wingspan: 11.17 m (36 ft 8 in)
Wing area: 27.55 m2 (296.5 sq ft)
Length: 8.55 m (28 ft 1 in)
Height: 3.15 m (10 ft 4 in)
Empty weight: 650 kg (1,433 lb)
Gross weight: 1,000 kg (2,205 lb)
Maximum speed: 160 km/h (99 mph, 86 kn)
Stall speed: 65 km/h (40 mph, 35 kn)
Service ceiling: 4,000 m (13,000 ft)
Time to altitude: 1,000 m (3,300 ft) in 6 minutes
Wing loading: 36.29 kg/m2 (7.43 lb/sq ft)
Power/mass: 0.0830 kW/kg (0.0505 hp/lb)
Crew: 2
Development of the S.13 was started in 1947. This versatile aircraft could be used to train advanced pilots, navigators, bomb aimers, radio telegraphers and observers. It was also suitable for the training of paratroopers and for aerial mapping. Test pilot Burgerhout made the first flight of the S.13 at Schiphol on March 13th, 1950. An intended order from KLM did not materialise owing to a gift of Beechcraft aeroplanes from America. The sole prototype was used during the flood disaster of February 1953 to photograph the inundated areas.
Engines: 2 x Pratt & Whitney Wasp
Development of a version of the S.11 with nosewheel under carriage, designated S.12, was started in 1947, but was not produced in Holland, but the Brazilian Fokker factory delivered 50 to the Brazilian Air Force. Later the factory was taken over by the Brazilian government. The military designation of the Brazilian built S.12 was T 22.
The F.25 Promotor business aircraft, of which 100 were ordered by Frits Diepen on May 16th 1946 for his air taxi company and sales purposes. was exhibited at the first post war Paris Air Show in November 1946 and, after modification to improve its performance, made a demonstration tour of Europe. The press praised the aircraft, but the sales were disappointing. The F.25 received its Certificate of Airworthiness in 1947, but only 21 were built, and not all of these flew.
This four seat business aircraft was designed to the order of Diepen, who acquired the worldwide selling rights.
On October 20th, the prototype F.25 Pro¬motor made its maiden flight.
Six where sold to a Spanish air-taxi firm. Due to never quite totally solved vibration problems with the lengthened propshaft, they achieved limited success and were soon taking out of service.
The production version had elongated tailplanes and a higher air intake.
Although 20 F.25 aircraft were constructed, sales were disappointing as it could not compete in cost with thousands of surplus aircraft on the market following the war.
Engine: Lycoming O-435 190 hp
Wingspan 12.00 m
Length 8.50 m
Max. speed 227 km/h
Max take off weight 1.425 kg
In 1946, just after World War II, Fokker started design studies for a lowwing primairy trainer with a fixed tailwheel undercarriage. Soon the Luchtstrijdkrachten (LSK) and Frits Diepen participated in the development of the Fokker S-11. On 8 October 1946, Frits Diepen Vliegtuig NV (FDV.NV) ordered 100 aircraft of the type for resale. 41 went to the Israeli Air Force. On 18 December 1947, the prototype of the Fokker S.11 (PH-NBE c/n 6187) flew first, powered by a 190 hp Lycoming O-435-A six-cylinder air-cooled engine. On 12 March 1948, the second prototype of the Fokker S-11 (PH-NBF c/n 6188) flew first. During testing it was found that some aerodynamic changes had to be made to improve the handling of the aircraft. Both prototypes were modified in 1948 and were used as demonstrators until PH-NBF crashed in Sweden on 16 June 1949. After the loss of the second prototype, the first prototype was broken up and the registration was cancelled on 10 May 1950.
The construction of the Fokker S-11 was improved and the aircraft entered production. The LSK ordered 39 aircraft and in 1950 the first Fokker S.11-1 Instructors entered service with the Koninklijke Luchtmacht (former LSK). The Fokker S.11-1 served with the Koninklijke Luchtmacht (Royal Netherlands Air Force) first with the EVO at Woensdrecht AFB. In 1968 the EVO (Elementaire Vlieger Opleiding) moved to Gilze-Rijen AFB. Next to the Royal Netherlands Air Force, the Fokker S.11 was delivered to the air arms of Brazil, Israel and Italy.
Until production of the Fokker S-11 in the Netherlands ended in 1953 a total of 101 aircraft were built.
Next to the Dutch production, the Fokker S.11 was manufactured under licence by Aermacchi in Italy as the Macchi M.416 and by Fokker Industria Aeronautica SA / Fabrica do Galeao in in Rio de Janeiro, Brazil, designated T.21. Macchi, together with IMAM, built 180 of them. 100 were constructed for the Brazilian Air Force.
The D XXIII single-seat fighter push-pull prototype was powered by two 528hp Walter Sagitta I-SR engines and flying for the first time on 30 May 1939. Proving an attrac¬tion at the 1938 Paris Air Show, the maximum speed was 520 kph.
Versions of the D XXIII were also proposed with Hispano- Suiza 12Xcrs, Junkers Jumo 210G and Rolls-Royce Kestrel XV engines, and although all-metal construction was intended, the prototype was fitted with a wooden wing of greater thickness/chord ratio in order to expedite the test programme. Owing to various problems, including rear engine cooling, only four hours of flight testing had been completed when the invasion of the Netherlands brought the D XXIII development programme to a halt. The proposed armament comprised two 7.9mm and two 13.2mm FN-Browning machine guns.
Engines: two 528hp Walter Sagitta I-SR
Max take-off weight: 2950 kg
Empty weight: 2180 kg / 4806 lb
Wingspan: 11.50 m / 37 ft 9 in
Length: 10.20 m / 33 ft 6 in
Height: 3.80 m / 12 ft 6 in
Wing area: 18.50 sq.m / 199.13 sq ft
Max. speed: 525 km/h / 326 mph
Cruise speed: 390 km/h / 242 mph
The Fokker T.IX was Fokker’s first all metal bomber and was designed to succeed the Martin bombers used by the Royal Dutch East Indies Army. In September 1939 the T.IX made its maiden flight. It had a maximum speed of 440 kph, an armament of three machine guns, and carried a 2,000kg bomb load. In May 1940 it fell into German hands, but they were only interested in its Bristol Hercules sleeve valve engines. Only the prototype was completed.
Designed to Netherlands naval air service specifications for a torpedo-bomber/reconnaissance aircraft suitable for home and the Netherlands East Indies service, the Fokker T.VIII-W floatplane was built in three versions. The T.VIII-Wg was of mixed wood and metal construction, the T.VIII-Wm was all metal and the T.VIII-Wc, a larger version of mixed construction.
An initial order for five aircraft was placed, and all were completed by June 1939, when a further batch of 26 was ordered, most of them intended as replacements for T.IVs in the East Indies, but none was delivered there.
A total of 36 T.VIII-Ws was built, these comprising 19 T.VIII-Wgs, five T.VIII-Wcs and 12 T.VIII-Wms, the difference of five being accounted for by a Finnish order which was not delivered. These were of the T.VIII-Wc variant which had a 1.83m longer fuselage, 2.01m increase in wing span, an additional 8.00sq.m of wing area, and power provided by 664kW Bristol Mercury XI engines. In the event, the Fokker factory was overrun by the Germans before completion of this order, but the aircraft were finished and subsequently delivered to Germany along with 20 ex-Netherlands navy aircraft. A one-off landplane variant, the T.VIII-L built for Finland, was also seized by the Germans.
Eight T.VIII-Ws had been flown to England along with other Dutch floatplanes on 14 May 1940, and on 1 June 1940 No. 320 (Dutch) Squadron RAF was formed at Pembroke Dock, to operate the T.VIII-Ws on convoy escort work. These aircraft carried RAF markings, plus a small Dutch triangle badge. Three of the aircraft were lost, and with no spares available the remaining aircraft were flown to Felixstowe for storage. They were joined by another in May 1941, when four Dutchmen escaped from Amsterdam and brought their T.VIII-W down on the sea near Broad-stairs. German navy operations with their group of T.VIII-Ws were confined mostly to patrol work in the Mediterranean.
T.8-Wg
Engine: 2 x Wright Whirlwind R-975-E3, 336kW
Max take-off weight: 5000 kg / 11023 lb
Empty weight: 3100 kg / 6834 lb
Wingspan: 18.0 m / 59 ft 1 in
Length: 13.0 m / 42 ft 8 in
Height: 5.0 m / 16 ft 5 in
Wing area: 44.0 sq.m / 473.61 sq ft
Max. speed: 285 km/h / 177 mph
Cruise speed: 220 km/h / 137 mph
Ceiling: 6800 m / 22300 ft
Range: 2750 km / 1709 miles
Armament: 2 x 7.9mm machine-guns, 605kg of bombs or one torpedo
Crew: 3
Passengers: 6
