At the moment I'm reading a book entitled "Wings On My Sleeves", written by Eric Brown, who was a test pilot during WWII and in the post war years. One of the photos in the book is of the Westland Wyvern. This is the first time I have heard of this aircraft, and I find it to be very good looking. It's most unique/unusual feature is the contra-rotating propellors.
My thanks to Wikipedia for the following data:
General characteristics
Crew: One
Length: 42 ft 3 in (12.88 m)
Wingspan: 44 ft 0 in (13.42 m)
Height: 15 ft 0 in (4.57 m)
Wing area: 355 ft² (33 m²)
Empty weight: 15,608 lb (7,095 kg)
Loaded weight: 21,200 lb (9,636 kg)
Max takeoff weight: 24,450 lb (11,113 kg)
Powerplant: 1× Armstrong Siddeley Python 3 turboprop, 3,667 hp (2,736 kW)
Performance
Maximum speed: 383 mph (613 km/h)
Range: 904 miles (1,446 km)
Service ceiling: 28,000 ft (8,537 m)
Rate of climb: 2,350 ft/min (11.9 m/s)
Wing loading: 60 lb/ft² (292 kg/m²)
Power/mass: 0.17 hp/lb (0.28 kW/kg)
Armament
4x 20 mm Hispano Mk. V cannons in the wings
16x underwing rockets or
Up to 3,000 lb (1,364 kg) of bombs or
1x Mk-15/17 torpedo or sea mine
If you look closely in this picture, you will notice the contra-rotating props. Sorry that I couldn't find a better picture, but they are few and far between on the internet.