Re: Which Aircraft Should PAF opt for ????
Cobra :
Perhaps the most fmous of all, in this move the sukhoi pitches up to 120 degrees angle of attack, and almost stops in mid air. The nose then falls back through to the horizontal, and the aircraft accelerates away in the original direction. There in no major gain or loss in height (unless there is an error of some sort on the entry and recovery.
Hook :
This is a cobra pulled whilst the a/c is turning in a circle so that it points its nose across the circle.
In the Su-37, the cobra and the hook are performed by the pilot disabling the angle of attack (alpha) limiter on the flight control system just prior to the pitch up. The fly-by-wire FCS normally limits the aircraft to 35 degrees alpha, but by disabling the alpha limiter, the pilot can generate up to 110 degrees alpha in the aircraft which does not have TVC. This is simply a demonstration of the aircraft's ability to generate a tremendous pitch rate, without changing the vector of flight.
Kulbit/Somersault :
It is performed by pulling up the machine with a steep angle of incidence (AOA) and a slowing down of the airspeed in an internal vertical role. This loop is extremely small in diameter and is only possible in TVC and FBW equipped aircraft.
Bell/Tailslide :
This involves rising up vertically till the speed is reduced to zero following which the nose is allowed to fall under gravity. The pilot uses this to change direction as desired. The Tailslide also defeats doppler radars on the attacking aircraft.
Some Manuvers only the SU37 can perform..
The Russian-built Sukhoi Su-30MK, the high-performance fighter being exported to India and China, consistently beat the F-15C in classified simulations, say U.S. Air Force and aerospace industry officials.
In certain circumstances, the Su-30 can use its maneuverability, enhanced by thrust-vectoring nozzles, and speed to fool the F-15's radar, fire two missiles and escape before the U.S. fighter can adequately respond. This is according to Air Force officials who have seen the results of extensive studies of multi-aircraft engagements conducted in a complex of 360-deg. simulation domes at Boeing's St. Louis facilities.
"The Su-30 tactic and the success of its escape maneuver permit the second, close-in shot, in case the BVR [beyond-visual-range] shot missed," an Air Force official said. Air Force analysts believe U.S. electronic warfare techniques are adequate to spoof the missile's radar. "That [second shot] is what causes concern to the F-15 community," he said. "Now, the Su-30 pilot is assured two shots plus an effective escape, which greatly increases the total engagement [kill percentage]."
THE SCENARIO in which the Su-30 "always" beats the F-15 involves the Sukhoi taking a shot with a BVR missile (like the AA-12 Adder) and then "turning into the clutter notch of the F-15's radar," the Air Force official said. Getting into the clutter notch where the Doppler radar is ineffective involves making a descending, right-angle turn to drop below the approaching F-15 while reducing the Su-30's relative forward speed close to zero. This is a 20-year-old air combat tactic, but the Russian fighter's maneuverability, ability to dump speed quickly and then rapidly regain acceleration allow it to execute the tactic with great effectiveness, observers said.
If the maneuver is flown correctly, the Su-30 is invisible to the F-15's Doppler radar--which depends on movement of its targets--until the U.S. fighter gets to within range of the AA-11 Archer infrared missile. The AA-11 has a high-off-boresight capability and is used in combination with a helmet-mounted sight and a modern high-speed processor that rapidly spits out the target solution.
http://vayu-sena.tripod.com/info-su30mki.html#12 [/b]
