The different varients of the F and G series Fw-190's:
Focke-Wulf Fw 190F-1 The Fw 190F was a dedicated close-support fighter, and was a production line model of the Fw 190A-5/U3, with a strengthened landing gear and fitted with 1 × ETC 501 center fuselage rack, and 4 × ETC 50 underwing racks. Max bomb load was 1,984 lb (900 kg), optionally increased to 2,646 lb (1.200 kg) under special circumstances as the ETC 501 rack was able to carry a 2,205 lb (1.000 kg) load. Also, the Fw 190F-series had improved protection in the form of some 794 lb (360 kg) of armor for the pilot, engine and oil tank. This model was based on the Fw 190A-4, rather than the Fw 190A-5
Number built: 25 to 30
Focke-Wulf Fw 190F-2 First true F-series production. Based on the airframe of the Fw 190A-5 but generally similar to the Fw 190F-1 with the exception of its revised cockpit canopy and modified disposable armament capability. The cockpit was based on a single-piece sliding section of the blown type that bulged upward slightly to offer more headroom and also improve the aerodynamics of the upper fuselage. The modification of the bomb-load resulted from provision for an ER-4 supplementary rack to be installed on the ETC 501 underfuselage rack to carry 4 × 110 lb (50 kg) SC-50 bombs as an alternative to a single larger bomb. One conversion existed.
Umrüst-Bausätze (factory conversion sets):
Fw 190F-2/Trop Tropicalized with dust/sand filters for service in Tunisia and in southern Italy
Number built: 271
Focke-Wulf Fw 190F-3 Based on the airframe of the Fw 190A-6, fitted with 2 × ETC 250 racks in stead of 4 × ETC 50 racks under the wings. These racks could each carry a single 551 lb (250 kg) SC-250 bomb or 66 Imp gal (79.25 US gal; 300 liter) drop tank.
Rüstsätze (field conversion sets):
Fw 190F-3/R1 Simplified bomb-release gear
Fw 190F-3/R3 Tank-buster version with 2 × 30 mm MK 103 under the wings
Number built: about 250
Focke-Wulf Fw 190F-8 Designated Fw 190F-8 (in stead of Fw 190F-4) to synchronise on the Fw 190A series. Armed with 2 × 0.51 in (13 mm) MG 131 guns in stead of 2 × 0.312 in (7.92 mm) MG 17's. Further features include an improved fuel-injection system, revised radio equipment, provision for 25.3 Imp gal (30.4 US gal; 115 liters) of auxiliary fuel in a 30.4 US gal (25.3 Imp gal; 115 liter) rear-fuselage tank, and a modified bomb-release system capable of dropping of the bombs in a single salvo or a number of 'sticks'.
A lot of Fw 190F-8's could also be fitted with 24 × 2.16 in (55 mm) R4/M rockets, or 14 × 220 lb (100 kg) RBS B/F21 rocket bombs, or two clusters of 3 × 9.84 in (280 mm) WGr.28 rockets, or Panzerblitz anti-tank rockets in 2.16, 3.07 and 5.12 in (55, 78 and 130 mm) calibers, or large numbers of small anti-personnel bomblets
Umrüst-Bausätze (factory conversion sets):
Fw 190F-8/U1 Two-seat tandem advanced trainer. Uncertainty exists over whether or not this version was actually built or not
Fw 190F-8/U2 Torpedo-fighters with provision for the 882 lb (400 kg) BT 400, 1,543 lb (700 kg) BT 700 or 3,086 lb (1.400 kg) BT 1400 torpedo-bomb
Fw 190F-8/U3 Torpedo-fighters with provision for the 882 lb (400 kg) BT 400, 1,543 lb (700 kg) BT 700 or 3,086 lb (1.400 kg) BT 1400 torpedo-bomb (like above)
Fw 190F-8/U14 Torpedo-fighter, with provision for the LT F5b torpedoes.
Fw 190F-8/U15 Torpedo-fighter, with provision for the 2,094 lb (950 kg) LT 900 torpedo.
Rüstsätze (field conversion sets):
Fw 190F-8/R1 Attack aircraft, armed with 2 × 0.51 in (13 mm) MG 131 fuselage-mounted guns and 4 × 20 mm MG 151/20 wing-mounted cannon as well as underwing bombs on 4 × ETC 71 racks.
Fw 190F-8/R2 Attack aircraft, armed with 2 × 0.51 in (13 mm) MG 131 fuselage-mounted guns and 2 × 20 mm MG 151/20 wing-mounted cannon, supplemented by 2 × 30 mm MK 108 cannon in underwing gondolas.
Fw 190F-8/R3 Attack aircraft, armed with 2 × 0.51 in (13 mm) MG 131 guns and 2 × 20 mm MG 151/20 cannon, supplemented by 2 × 30 mm MK 103 underwing cannon for tank-busting operations.
Fw 190F-8/R13 Nocturnal ground-attack fighter, fitted with additional navigation equipment and armed with 2 × 0.51 in (13 mm) MG 131 fuselage-mounted guns and up to 3,307 lb (1.500 kg) of disposable stores carried on 1 × ETC 501 underfuselage rack and 2 × ETC 503 underwing racks
Fw 190F-8/R14 Torpedo-fighter, powered by 1 × BMW 801TU radial, rated at 2,000 hp (1.491 kW) for take-off. It featured the PKS 12 radio navigation system, and was armed with 2 × 20 mm MG 151/20 cannon in the wing roots and one LT F5b torpedo carried on an ETC 502 underfuselage rack.
Fw 190F-8/R15 Torpedo-fighter, equal to the Fw 190F-8/R14, but with the standard 1 × BMW 801D-2 engine and a 3,086 lb (1400 kg) LT 1400 torpedo-bomb.
Fw 190F-8/R16 Torpedo-fighter, equal to the Fw 190F-8/15, but with a 1,543 lb (700 kg) LT 700 torpedo-bomb.
Number built: 385
Focke-Wulf Fw 190F-9 Parallell to the F-8 series, the F-9 series had differences such as improved armor. It was powered by 1 × BMW 601TS/TH turbocharged engine, rated at 2,000 hp (1.491 kW) for take-off and 2,270 hp (1.692,5 kW) with the MW 50 methanol/water power-boost system. It had the same Umrüst-Bausätze and Rüstsätze as the Fw 190F-8 (See above).
Further development of the Fw 190F series was stopped because of the defeat of Germany.
Number built: unknown
Focke-Wulf Fw 190G-0 Pre-production model of the Fw 190G long-range fighter-bomber series. In essence it was the production version of the Fw 190A-4/U8 and Fw 190A-5/U3. The extra fuel meant a sacrifice of two fuselage-mounted guns to leave the 2 × 20 mm MG 151/20 cannon in the wing roots as the only fixed armament. Provision for attachments of 2 × 66 Imp gal (79.25 US gal; 300 liter) drop tanks under the wings were made. The Fw 190G-0 was additionally fitted with an ETC 501 rack under the fuselage to carry a 2,205 lb (1.000 kg) SC-1000 or 1,102 lb (500 kg) SC-500 bomb.
Number built: unknown
Focke-Wulf Fw 190G-1 First G-series production version. It was based on the Fw 190A-4's airframe, and was similar to the Fw 190G-0 except for its strengthened main landing gear, max weight of 10,472 lb (4.750 kg) with a 3,968 lb (.1800 kg) SC-1800 bomb whose lower fin had to be cropped to provide adequate ground clearance at take-off. The powerplant remained was the 1 × BMW 801D-2 radial, rated at 1,700 hp (1.267,5 kW) for take-off and 1,440 hp (1.074 kW) at 18,700 ft (5.700 m) in the original type of short-nose installation that resulted in an overall length of 28 ft 10.5 in (8.80 m). The max level speed was 351 mph (565 km/h) at optimum altitude, the cruising speed was 289 mph (465 km/h) at optimum altitude, and it had a range of 652 miles (1.050 km) with two 66 Imp gal (79.25 US gal; 300 liter) drop tanks. One conversion existed.
Umrüst-Bausätze (factory conversion sets):
Fw 190G-1/Trop Fitted with dust/sand filters for use in North Africa, Italy and the USSR
Number built: 49
Focke-Wulf Fw 190G-2 The Fw 190G-2 was a simple development of the Fw 190G-1 based on the airframe of the Fw 190A-5 with its longer nose section for an overall length of 29 ft 4.25 in (8,95 m). It also had Messerschmitt-designed racks for the underwing drop tanks, which provided for a maximum range of 963 miles (1.550 km). One conversion existed.
Umrüst-Bausätze (factory conversion sets):
Fw 190G-1/Trop Fitted with dust/sand filters for use in North Africa, Italy and the USSR
Number built: 468
Focke-Wulf Fw 190G-3 Equal to the Fw 190G-2, but with the incorporation of the PKS 11 autopilot, use of underwing racks designed by Focke-Wulf and incorporation of balloon cable-cutters in the wing leading edges
Umrüst-Bausätze (factory conversion sets):
Fw 190G-3/Trop Fitted with dust/sand filters for use in North Africa, Italy and the USSR
Rüstsätze (field conversion sets):
Fw 190G-3/R5 An additional 4 × ETC 50 racks under the wings to carry 4 × 100 lb (50 kg) SC-50 bombs
Number built: unknown
Focke-Wulf Fw 190G-4 Equal to the Fw 190G-3, but with 3 × ETC 503 underwing racks
Umrüst-Bausätze (factory conversion sets):
Fw 190G-4/Trop Fitted with dust/sand filters for use in North Africa, Italy and the USSR
Number built: unknown
Focke-Wulf Fw 190G-8 Based on the airframe of the Fw 190A-8 with its 25.3 Imp gal (30.4 US gal; 115 liter) auxiliary tank.
Rüstsätze (field conversion sets):
Fw 190G-8/R4 Powered by 1 × BMW 801D-2 engine with the GM 1 nitrous oxide power-boost system.
Fw 190G-8/R5 Powered by 1 × BMW 801TU engine, rated at 2,000 hp (1.491 kW) for take-off and carrying four ETC 50 underwing racks in addition to the ETC 501 underfuselage rack.
Number built: unknown
All taken from:
http://www.xs4all.nl/~fbonne/warbirds/ww2htmls/fockfw190.html