With tailplane and foreplane leading edges up, this Sukhoi Su-27K is deriving favourable trim for high lift in its landing configuration.

Самолёты на фотографии: Aircrafts on the photo: Сухой Су-27К / Су-33 - РоссияRussia - 1985

Although most of the lift is derived from the wing, the forebody (especially with strokes) and centrebody also contribute. Vortices generated at incidence, by the F-16’s leading-edge extension, (seen here during a high-g manoeuvre) interact with the wing leading edge vortex and increase the wing lift.

Самолёты на фотографии: Aircrafts on the photo: General Dynamics F-16B/D Fighting Falcon - СШАUSA - 1977

The predecessor Mirage III, with natural stability, loses lift due to the upwards deflected flaperons needed to trim.

Самолёты на фотографии: Aircrafts on the photo: Dassault Mirage III - ФранцияFrance - 1956

The relaxed longitudinal stability of the Mirage 2000 allows the wing trailing edge flaperons to be neutral during the landing approach.

Самолёты на фотографии: Aircrafts on the photo: Dassault Mirage 2000 - ФранцияFrance - 1978

With foreplane deflected fully nose down and wing trailing edge flaperons fully up, the Saab Gripen's landing run is much reduced, without recourse to a braking 'chute. Braking effectiveness is increased due to download on the undercarriage. Aerodynamic drag is provided by the ‘barn door’ foreplane.

Самолёты на фотографии: Aircrafts on the photo: SAAB Gripen / JAS-39A/C - ШвецияSweden - 1988

A large tailplane deflection (leading edge down) is needed to achieve and trim the high angle of attack required by the Grumman F-14 Tomcat as it comes off the catapult, full of fuel and at a relatively low speed.

Самолёты на фотографии: Aircrafts on the photo: Grumman F-14 Tomcat - СШАUSA - 1970

One of the main benefits of the foreplane delta, such as that adopted for the Eurofighter Typhoon, is that it offers especially high supersonic agility. With a suitably positioned centre of gravity, it can also provide particularly high subsonic turn rates.

Самолёты на фотографии: Aircrafts on the photo: Eurofighter Typhoon / EF-2000 - InternationalInternational - 1994

All variable sweep wing aircraft, with high lift flap systems, inevitably employed aft tails. A typical example is the Grumman F-111, the EF-111 electronic warfare variant of which is seen here in formation with the aircraft displaying its full range of wing sweep angles.

Самолёты на фотографии: Aircrafts on the photo: Grumman EF-111 Raven - СШАUSA - 1977

This wind tunnel model of the Eurofighter concept demonstrator EAP, shows the favourable foreplane/wing flowfield interaction.

Самолёты на фотографии: Aircrafts on the photo: BAe EAP - ВеликобританияUnited Kingdom - 1986

A Saab Viggen touching down. The large flap deflection necessary on the foreplane to trim is clearly seen on this canard delta which lacks relaxed stability.

Самолёты на фотографии: Aircrafts on the photo: SAAB Viggen / AJ.37 - ШвецияSweden - 1967