Re: JF-17: New Pics
More on the article.
He explains something here, which is interesting for people to learn.
On a mechanically controlled plane like the J-7, you cannot pull the stick all the way through. At transonic speeds, on a delta winged aircraft, the delta can only use a small angle of attack. Once you pull past that limit, you will lose speed, and with it, lift, and the nose of the aircraft goes down.
On a fly by wire plane, you cannot have this problem because the FBW computer processes the inputs and carefully controls the angle of attack.
He then comments on the other jians.
J-5 --- Simple in build construction. An honor to fly.
J-6 --- First supersonic plane. Very difficult to fly.
J-7 --- He complains about the high take off and landing speeds. In theory the landing speed should be 280kph, but because of airframe aging and pilot ability, in practice it is often over 300kph.
J-8 --- Does a lot better in take off and landings compared to the J-7, but still has some stability problems in flight. Tail efficiency is good so it can hold a good angle of atack, and the plane's wings have much lift (low wing loading) so the plane take off and land at slower speeds and higher angles. Maneuverbility is not good, and in the latest versions, modifications are done on the plane to improve low speed maneuverbility.
More on the article.
He explains something here, which is interesting for people to learn.
On a mechanically controlled plane like the J-7, you cannot pull the stick all the way through. At transonic speeds, on a delta winged aircraft, the delta can only use a small angle of attack. Once you pull past that limit, you will lose speed, and with it, lift, and the nose of the aircraft goes down.
On a fly by wire plane, you cannot have this problem because the FBW computer processes the inputs and carefully controls the angle of attack.
He then comments on the other jians.
J-5 --- Simple in build construction. An honor to fly.
J-6 --- First supersonic plane. Very difficult to fly.
J-7 --- He complains about the high take off and landing speeds. In theory the landing speed should be 280kph, but because of airframe aging and pilot ability, in practice it is often over 300kph.
J-8 --- Does a lot better in take off and landings compared to the J-7, but still has some stability problems in flight. Tail efficiency is good so it can hold a good angle of atack, and the plane's wings have much lift (low wing loading) so the plane take off and land at slower speeds and higher angles. Maneuverbility is not good, and in the latest versions, modifications are done on the plane to improve low speed maneuverbility.
