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Gentlemen,
sorry for not answering earlier and thank you for answering me.
I understand that statistics don't tell all about a plane. It's the reason why I asked my question : the F2A-3 and F4F-3/4 were very close 'on paper' but apparently not on the air. Did the Wildcat have better altitude performance, roll rate or dive acceleration ? Or is there something else that makes the Buffalo so bad ?
Best regards,
Francis
oldcrowcv63, thanks for your answer.
If I understand correctly, the main advantage of the Wildcat over the Buffalo is not in performances (they are relatively close, except at high altitude) but in 'logistics' : The F4F-3/4 was a robust planes that could be built in large quantities while the F2A-3 was a fragile one that could be available in limited numbers only.
Best,
Francis
BUFFALO I AS430The British and the Dutch version F2A2
Specifications F2A-2 (Model 339)
General characteristics
Crew: 1
Length: 25 ft 7 in (7.80 m)
Wingspan: 35 ft 0 in (10.67 m)
Height: 12 ft 0 in (3.66 m)
Wing area: 209 sq ft (19.4 m2)
Empty weight: 4,576 lbs (2,075.64 kg)
Max takeoff weight: 5,942 lbs (2,695 kg)
Wing load: 28,4 lbs/sq ft ( 138,9 kg/sq m) (Max weight)
Powerplant: 1 × Wright R-1820-40 Cyclone 9 9-cyl air-cooled radial piston engine, 1,100 hp (820 kW)
Performance
Maximum speed: 285 mph (458 km/h) at sea level
323 mph (519 km/h) at 16,500 ft (5,030 m)
Range: 1,015 mi (1,633 km)
Service ceiling: 34,000 ft (10,363 m)
Rate of climb: 2,500 ft/min (12.7 m/s)
Note the comments about instability in some flight conditions
Also the performance stats for the F4F-3 (land) and F4F-4
View attachment 251800
View attachment 251801
I found this performance data for the Martlet IV which is basically the F4F-4B:
View attachment 231438
View attachment 231439
so we can get a direct comparison of the Fulmar II and F4F-4B.
This report:
http://www.wwiiaircraftperformance.org/f4f/f4f-4-02135.pdf
states that a comparison of the F4F-4 and the -4B found "...the F4F-4B being slightly superior at low altitudes and the F4F-4 being slightly superior at 15,000 ft and above."
BUFFALO I AS430
Engine:R-182OG10SA
Weight: 6,430lb
time to 20,000ft 10.5min
max climb rate: 2,240ft/min up to 8,200ft
service ceiling: 31,800ft
max speed: 294mph at 18,700 ft.
flight test data from Boscombe Down (Secret Years, p.304)
Martlet II AM991
Engine:R-182OS3C4-G
Weight: 7790lb
time to 20,000ft 12.5min
max climb rate: 1940ft/min at 7600ft
service ceiling: 31,000ft
max speed: 293mph at 13,800 ft.
flight test data from Boscombe Down (Secret Years, p.306)
Spitfire PR variants and the P-51 both had major instability issues at some flight conditions and loading levels. Several WWII aircraft had load issues during certain phases of flight that impacted stability. Just sayin'...
Adding hundreds of pounds of fuel in overload/long range tank/s is a bit different than having stability problems after firing off part of the ammo load. Just sayin'...