By the mid-1940s the limitations of piston aero engines were becoming apparent. Every possible scheme to squeeze the last bit of power from the internal combustion engine was tried. One of the most successful innovations was the contra-rotating propeller arrangement whereby two sets of propellers driven by one engine and sharing a common axis are contra-rotated (with one set travelling clockwise and the other anticlockwise).Â
This system, though insanely noisy, produced more thrust than an equivalent conventional arrangement. It also produced some of the most insane flying machines ever to have deafened their ground crew.Â
12. Douglas A2D Skyshark
In 1945, barely three months after the piston-engined Skyraider had flown, Douglas were asked to produce a turboprop aircraft of much greater power. Though the contra-rotation system was originally developed for the piston-engine, it was with the new turboprop that it realised its potential (the first turboprop aircraft, the Trent Meteor flew the same year on 20th September). The Skyshark, finally took to the air on 26th May 1950, and a proved a marked improvement over the Skyraider: it had a 160 percent better climb rate, a 50 per cent higher service ceiling and a 170 mph faster top speed. Unfortunately development problems (centred around the engines) had so delayed the type, that it was now up against the XA-4D-1 Skyhawk, a type that was superior in almost every way (as we shall see this would not be the last time that one of Heinemann’s creations would defeat a contra’ design). The brutal Skyshark was cancelled after the sixth production aircraft was built.
11. Martin-Baker MB 5
First flying in 1944, the MB 5 was a superb fighter. According to master pilot Janusz Å»urakowski (who demonstrated the type’s astonishing manoeuvrability at the 1946 Farnborough Airshow) it was superior in many respects to the Spitfire. The world’s most experienced test pilot Eric ‘Winkle’ Brown also commented on what a capable aircraft it was. Despite its huge potential, it didn’t enter production.
10. Convair XFY ‘Pogo’ and Lockheed XFV ‘Salmon’
In 1950 the US Navy approached Convair and Lockheed and asked them to build tail-sitting experimental aircraft powered by the impressive (and troublesome) Allison T40. The 5,500 horsepower engines turned 16-feet co-axial propellers producing a pull that exceeded the weight of the aircraft. The aircraft demonstrated vertical take-offs (and that the US Navy were insane).
9. Fisher P-75 Eagle
The 1943 Fisher P-75 Eagle was certainly not as impressive as its later McDonnell Douglas namesake. Testing revealed several issues with this powerful (but mediocre) fighter including: miscalculated centre of mass; dismal engine performance from the Allison V-3420 engine; high aileron forces at high speed, and poor spin characteristics. Everything the Allison V-3420 touched turned to shit as all the types fitted with it (the Douglas XB-19, Boeing XB-39 Superfortress, Lockheed XP-58 Chain Lightning) failed to enter service.
8. Westland WyvernÂ

The post-war Wyvern was a single-seat carried-based fighter powered by a turboprop engine. As Ed Ward pointed out, it was, “650 pounds shy of a loaded Dakota”. Unsurprisingly, of the 127 that entered service with the Fleet Air Arm, 39 were lost despite a service life of only five years.
You may also enjoy top WVR and BVR fighters of today, an interview with a Super Hornet pilot and a Pacifist’s Guide to Warplanes. Want something more bizarre? The Top Ten fictional aircraft is a fascinating read, as is The Strange Story of The Planet Satellite. Fashion Versus Aircraft Camo is also a real cracker.Â
Follow my vapour trail on Twitter:Â @Hush_kit
7. Fairey Gannet
Fairey’s seeming battle with Westland to produce the ugliest aircraft was won outright when the Gannet prototype took to the air in 1949. On 19 June 1950 it became the first turboprop aircraft to make a deck landing on an aircraft carrier.  Not put off by the type’s hideous appearance it received export orders from the German Marineflieger, the Indonesian Navy and the Australian Fleet Air Arm.































