Ki-61 Hien "Tony"The Kasasaki Ki 61 Hien was unique among Japanese fighter aircraft of the Pacific War it had a liquid cooled engine, a long tapered nose, and high aspect ratio wings. It had a very European look to it in fact, when it first appeared in combat it was initially assumed to be a license built version of either the Messerschmitt Bf 109 or perhaps some unspecified Italian aircraft. In fact, its suspected Italian ancestry may have played a role in the