LCA
It uses a tailless delta wing, a small aspect ratio and an upper fixed air inlet. You don't understand if it is too complicated. The common point of these three designs is simplicity. The last one to use a tailless delta wing was Mirage 2000. It was in service in 1982. Since then, there has not been a third-generation or fourth-generation model that used this model. It has been nearly 40 years.
This kind of pneumatic layout is characterized by its simplicity, and simplicity must have its shortcomings. The disadvantage is that when the LCA is flying at supersonic speeds, the fixed air intake will cause a large increase in resistance, insufficient air intake, and a drop in engine thrust. In fact, the tailless delta itself is conducive to supersonic flight, but the Indians have chosen a fixed air inlet.
This led to the fact that although the initial design of the LCA had a maximum speed of Mach 1.9, the prototype only flew out 1.4M in the test.
The layout of the tailless delta wing is a simple layout, and its wing body is firmly combined (the contact surface is large), so its overload is usually very strong. The Phantom 2000 has a high maneuvering overload, and can often achieve 9G overload, and even 11G overload can be achieved in flight experiments. However, the maximum overload of our LCA in its flight test was as high as 5.5G.