Normal surfaces have oval ends because Thus it offers the best aerodynamic efficiency. On the other hand, the ends of fighter jets are square, and in fact they are square themselves.
Isn’t aerodynamics important to them too? Why are they angular? Let’s explain some reasons why they are fighter jets…
They reduce their visibility on radar.

The system we call radar emits radio waves in a certain direction by measuring the signals that bounce back detects objects. Curved or rounded noses on normal aircraft reflect radar waves back, making the aircraft appear clearly on radar. This is what needs to happen for safety.
On the other hand; The angularity of fighter jets can reflect and scatter radar signals. Good Radars hit angular objects and deflect them and planes are not visible on radar.
This is called ‘stealth’.

The cornered nose of the aircraft, which reduces its visibility on radar, is one of the stealth technologies, but there is more. For example, on the surface of most fighter aircraft absorbs radar waves, There are a number of other methods, such as radar absorbing materials and hiding engine outlets.
When all of these are combined, the radar signals are minimized and the jet is detected on the radar. a vague image and can reach their targets more successfully without being detected by enemy radar.
Sources: Let’s Talk Science, Aircraft Nerds
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