Focke-Wulf FW-190D-9 Dora
FIREPOWER
6
MANEUVERABILITY
5
CLIMB RATE
6
DURABILITY
5
SPEED
9
GROUND ATTACK
5

Crew
1
Primary Guns
2 x 13mm MG131 machine guns with 475 rpg in cowl.
Secondary Guns
2 x 20mm MG151/20 cannon with 250 rpg in wing roots.
Defensive Guns
Ordnance
1 x 551 lb (250 kg) or 1 x 1103 lb (500 kg) bomb or 1 x 475 lb (215 kg) drop tank under fuselage, plus 2 x 551 lb (250 kg) bombs or 2 x 475 lb (215 kg) drop tanks under wings.
Engine(s)
1 x Junkers Jumo 213A-1 in-line-V rated for 1,776 hp at sea level (2,240 hp with WEP).
Int Fuel Capacity
828 lbs (375 kg).
Ext Fuel Capacity
475 lbs (215 kg), under fuselage or 950 lbs (430 kg) in 2 drop tanks under wings or 1,425 lbs (645 kg) in 3 drop tanks.
Maximum Speeds
357 mph (575 kph) and 376 mph (606 kph) with WEP at sea level, 425 mph (684 kph) at 21,650 ft (6,600 m) and 430 mph (692 kph) with WEP at 17,700 ft (5400 m).
Climb Rate
3,320 feet (1012 m) per minute; 4.9 min to 16,500 ft (5000 m), 7.1 min to 32,808 ft (10000 m).
Service Ceiling
39,370 ft (12000 m).
Range
525 miles (845 km).
Wingspan
34 ft. 5.6 in (10.5 m).
Length
33 ft. 5.5 in. (10.2 m).
Height
11 ft. 0 in. (3.35 m).
Loaded Weight
9,480 lbs (4300 kg).
Wing Area
197 sq ft (18.3 sq m).
Wing Loading
48.1 lbs/sq ft (235.0 kg/sq m).

History

A-series production was in full swing in 1942 when it was decided to find a solution to the Wurger’s poor high-altitude performance. The GM-1 nitrous system was able to boost performance up to about 26,000 feet, but there wasn’t enough nitrous to use it for more than a short time and the weight of the system was equal to the entire armament package!

Kurt Tank had always viewed GM-1 as a temporary measure and decided to re-engine the 190. He initially wanted to use the new Daimler-Benz DB-603 in-line engine, but it had been developed without official sanction and the RLM made it clear that they would view such a project with extreme disfavor.

Despite this unpleasant fact, the regard for Tank was so high that they allowed him to experiment with the engine, with the understanding that it would be thought of as a back-up measure only. Two other engine proposals were also considered, one using a turbo-supercharged BMW-801 and the other using the new Jumo-213 in-line.

The B-series designation was used for the turbo-supercharged BMW-801 installation. In addition to the turbo-supercharger, the B-series was intended to use a pressurized cabin and a new wing with 11% greater area. Unfortunately, BMW was nowhere close to releasing a turbo-supercharger, so this model was refitted with the DB-603A with an annular radiator. Although it was able to reach 39,000 feet, the requirement had been increased to 46,000 feet.

The C-series designation was reserved for the DB-603Aa installation with a large ventral turbo-supercharger. Despite the additional drag of the supercharger intake the prototype clocked in at 447 mph at 29,530 feet and 404 mph at 39,370 feet! The Focke-Wulf team felt this engine offered the best high-altitude performance, but engine availability was the primary operating factor and the C-series was abandoned.

The D-series was originally intended as a medium-altitude variation of the basic A-series 190 and was to use the new Jumo-213 in-line engine. Many pilots considered this engine to be nothing more than a bomber engine forced on the manufacturer by the RLM and Tank considered the Dora to be an “emergency solution” until his new Ta-152 could be delivered. However, the D-9 outperformed the A-8 at all altitudes and pilot misgivings were swept away.

The D-9’s armament consisted of a pair of 13mm MG-131s mounted in the cowl with 475 rpg and a pair of MG-151 20mm cannon with 250 rpg in the wing roots. The outboard cannon of the A-series was deleted to save weight and improve roll performance. With an ETC-504 rack under the fuselage and a pair of ETC-503s under the wing, the D-9 could carry a single bomb as large as 1,100 lbs. or up to three 550 lb. bombs.

Strengths

  1. Roll Rate — Although the Spitfire could out-turn the 190 on the level, the 190’s greater roll rate gave it the edge in maneuvering

Weakness

  1. Turn Rate — With its high wing-loading the Dora can’t turn with planes like Spitfire or La-7.

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