Northrop YF-17
The competitor of the YF-16 in the contest for a light weight fighter lost at first, but formed the basis for the successful F/A-18 Hornet. Therefore they look a lot like each other. The differences are in details.
Northrop/McDonnell-Douglas YF-23
The loser to the F-22 in the ATF competition has unique delta wings with a swept leading edge and forward swept trailing edge, creating a triangular shape. The two vertical stabilisers are in a V-shape. Engine intakes are under the wings, the exhausts on top of the rear fuselage.
Otto Aviation Celera 500L
This unconventional looking bizprop has a big stand-up cabin, with very slender wings going straight through the middle of the fuselage. In the rear is a diesel engine, driving a five blade pusher prop. The vertical stabiliser is also high and narrow, much like the back fin of a killer whale.
PAC JF-17 Thunder & CAC FC-1 Xiaolong
This fighter jointly developed by China and Pakistan is sort of a mix between the Saab Viggen (especially fin and nose) and F-16 (wings and horizontal stabiliser). The air intakes, just in front of the wings, are long and very narrow, with a semi circular shock cone.
Pacific Airmotive Tradewind
The Tradewind is an extensive modifition of the Beechcraft 18. With its single vertical stabiliser en nose gear undercarriage the aircraft really looks different, but you can still recognise the fuselage, wings and engines from the original.
Panavia Tornado
A single big vertical stabiliser, two seat cockpit, variable sweep wings and wedge shaped air intakes characterise the Tornado. That combination should thus not be difficult to recognise.
Partenavia Viator & A-Viator
The Viator and A-Viator can basically be regarded as a Spartacus with a retractable gear, attached to stubs on the fuselage, and a long streamlined nose to house the nose gear. The engine exhausts are underneath the nacelles and it has no tip tanks.
Percival Sea Prince/Pembroke
Typical for the Sea Prince and Pembroke tactical transports and the rectangular cabin windows with rounded corners (race track shape) and the triangular vertical stabiliser with rounded top. The nose is big and rounded. The aircraft have radial piston engines with large conical prop spinners.
Piaggio P136
The Piaggio P136 is a small amphibian aircraft that is characterised two piston engines in a gull wing, driving pusher propellers. The only comparable aircraft is the larger P166, which is a landplane only, but has the same configuration.
Piaggio P166
This is the larger, land-based version of the P136 amphibian, with two piston or turboprop engines driving pusher propellers mounted on top of the gull wings. These wings go through the fuselage, somewhat above the middle of its cross section. Tip tanks are standard.