It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by Corvx
Su-27 was made anti F-15, it wasn't "taken from F-15".
Design work on a 4th-generation fighter, later known as the Su-27, began at the Design Bureau of P.O. Sukhoi on the designers' initiative under the supervision of O.S. Samoilovich at the end of 1969. The new plane was required to provide effective engagement of the F-15 fighter being developed in the USA under the FX programme from 1966, the Soviet fighter being positioned, the same as its foreign rival, as an "air-superiority" aircraft. In contrast to the USSR's previous efforts to "catch up" with the Americans, Soviet aircraft designers decided this time to produce an aeroplane in no way inferior, and even superior, to "the adversary". To achieve this objective, the Design Bureau put quite a few challenging ideas into the configuration under development right from the start, such as placing the engines widely spaced in two nacelles under the fuselage body, and placing the vertical tail unit in between the wings and horizontal tail unit.
At the initial stage, the Design Bureau produced a great number of alternative configuration concepts, including the one based on a conventional solution, with an integral body, modelled on the F-15; but interestingly enough, however, at the end of the day, it was the new concept of airframe configuration that the subsequent design efforts were based upon. Another important feature of the new fighter was to be implementation of the concept of longitudinal static instability, with balancing achieved through use of an electronic distance control system (EDCS). Introduction of this innovation promised a substantial decrease in losses for balancing and a dramatic improvement in the plane’s manoeuvrability in dogfighting.
...but interestingly enough, however, at the end of the day, it was the new concept of airframe configuration that the subsequent design efforts were based upon.
World aviation today cannot be conceived of without the Su-27, a legendary aircraft. The Su-27 which formed the basic platform that has spawned countless derivatives has became the core of Russia’s combat aviation and Russian arms exports today. The Su-27 is seen as a befitting response by Sukhoi to the challenge of the West - the U.S. F-15 air superiority fighter.
In the fall of 1969, Pavel Sukhoi, head of the Sukhoi Experimental Design Bureau, launched the T-10 project at his own initiative. The designers faced a most challenging task of developing an aircraft that would surpass the U.S. fighter which had overall technological superiority.
On 20-May-1977, famous test pilot Vladimir Ilyushin took the Sukhoi T-10-1 for its first flight from the test center Zhukovski. However, before the aircraft could be put into series production it had to be drastically redesigned. There were very serious reasons for that - the designers of onboard equipment and missiles exceeded weight limits. The redesign work was headed by a design team woven around Mikhail Simonov. (See Mikahil Simonov Interview)
A comparison of the original design (in black) with the production Su-27
The original Su-27 design was rejected
The Design Bureau and cooperating enterprises were set the task to find bold, unorthodox solutions in the project, and to improve every component of the plane, its onboard equipment and armament.
The Su-27 for the first time incorporated solutions proposed for integrated supersonic designs in the 1950s by brilliant aircraft designer and scientist Robert Bartini (1897-1974). Pavel Sukhoi used Bartini’s ideas in the T-10 design. This is why the Su-27’s load-bearing airframe features high lift, low drag, air flow down-suction throughout the wingspan, and shock-free air flow in the area blending wing and it is leading-edge root extensions. The Su-27 is the world’s only fighter in which leading-edge root extensions reduce, rather than increase, drag. These solutions, combined with perfect design and minimal structural weight, provided much space for fuel and equipment, ensuring an exceptional flight range on internal fuel.
The Su-27 markedly enhanced the Soviet Air Force’s combat potential. NATO immediately saw the difference. In the previous years, the SR-71 reconnaissance aircraft often flew into Soviet airspace over the Kola Peninsula to check readiness of the Soviet Air Defense. The Su-27, with its high flight performance and perfect multichannel avionics system, sharply changed the situation, intercepting SR-71 aircraft in Soviet airspace.
The F-16 fighter is considered by many as an american aerodynamic standard. However, this effort was clearly eclipsed by the remarkable qualities of the Su-27.
The real triumph for the Su-27 came in 1989 when it made its first public appearance at the world’s largest air show Le Bourget near Paris. It was here that the now famous 'Cobra' maneuver was premiered in the West. The pilot at the controls was Victor Pugachev - hence the Cobra is often called the 'Pugachev Cobra'.
Originally posted by Eastpolar Commander
about the nosecone, it is the same as if you in-clined the seat some degrees, at least it helps.
I don't mean assuming on something but, let we see the fact! i think Russia wants to make better airplane of course! so they learned the F-15 then came out with better solution in design. that's one of the easiest way for someone to get better but cheaper.
Originally posted by Eastpolar Commander
- The bow head and nose cone of the 27 helps the pilot to get the conciousness in extreme g forces.
-Its powerful design (swept back wings, slender body, and in some Su-XX the tri-plane config.) comes out with some strange new manuever like Pugachevs Cobra, ect.
I thought if it could be simpler than now, just like Raptor or F-35, the 27 families will be lower cost, easier to maintain, less human power to built, and stealthier maybe.