Hi Neto,
>It is true that I-16 was one of the most monoeuvre fighters in ww2 ??
Yes.
Generally, fighters became less manoeuvrable from 1930 to 1945. The reason is that they were designed for high speed, not for manoeuvrability.
The Polikarpov I-16 was in fact designed for high-speed in the early 1930s, when it was less manoeuvrable than the I-15 series biplanes.
Compared to a Me 109 in the early 1940s, the I-16 was much more manoeuvrable (at low speeds), but much slower.
(The 1940s I-16 variants were less manouvrable, but faster than the early 1930s I-16 variants.)
Regards,
Henning (HoHun)