The effect is also used in high-lift devices such as a blown flap.

In general, blown flaps can improve the lift of a wing by two to three times.

Given the problems in service and the better lift from the larger wings, blown flaps have generally disappeared.

This made blown flaps practically useless as a landing aid on many aircraft.

In the 1970s new methods of constructing blown flaps were designed, with the original system becoming known as internal blowing.

Proposed military tactical transport based on HP.111 and fitted with blown flaps.

Other improvements included blown flaps on the leading edge of the wing and sturdier landing gear.

CCW technology has been in the research and development phase for over sixty years, and the early models were called blown flaps.

See Blown flap.

They introduced new blown flaps, but tests showed problems with the modified Lis-6 jet engine and the aircraft were not given to the Air Force.

It had a high-mounted swept wing with a boundary-layer control system (blown flaps) to improve low-speed lift.

The VZ-3 was a simple proof-of-concept experimental aircraft using blown flaps to achieve a short or near vertical take-off.

Although invented by the British, the first production aircraft with blown flaps was the Lockheed F-104 Starfighter.

They had also done studies with the original Boeing 707 prototype, the Boeing 367-80, adding extensive leading and trailing edge devices using blown flaps.

Two systems of externally blown flaps were developed, both using the direct exhaust of wing-mounted engines on otherwise simple flaps.

Enhancements to the aerodynamic performance of third-generation fighters included flight control surfaces such as canards, powered slats, and blown flaps.

The first 20 aircraft were, in effect, a pre-production series and featured a number of "one-off" modifications such as blown flaps and area ruled fuselage.

The shoulder-level wing featured a set of struts, not for support but in order to provide piping for the compressed air used in the blown flaps.

The Airbus A380, because of its massive size, is one of the few major commercial airliners to use externally blown flaps, which continue behind its engines.

They include common devices such as flaps and slats, as well as less common features such as leading edge extensions and blown flaps.

The resulting Type 525 also featured conventional swept tail surfaces as well as blown flaps to reduce the aircraft's landing speed, and first flew on 27 April 1954.

Blown flaps are a powered aerodynamic high-lift device invented by the British and used on the wings of certain aircraft to improve low-speed lift during takeoff and landing.

Initial delta wing Su-15s had poor take-off and landing characteristics, and so Sukhoi investigated a new wing design with extended wingtips (increasing wing area) and blown flaps.

A more advanced version of the blown flap is the circulation control wing; a mechanism that tangentially ejects air over a specially designed airfoil to create lift through the Coanda effect.

The first nine production batches of the MiG-21PFS were externally identical to the MiG-21PF but with blown flaps and brake chute fairing at the fin's base.