Fighter Squadron, and the 73rd Air Detachment (Aviaotryad) at Kiev and the 91st Squadron, later the 33rd Fighter Squadron, at Bobruisk. Others were delivered to the 1st, 2nd and 3rd Schools of Military Pilots. By 1 October 1930 252 I-3s were in service and 282 a year later. 297 were on hand on 1 January 1932, although it fell to 249 a year later and 239 towards the end of 1933. It was relegated to secondary roles in 1935 as newer and more powerful Polikarpov fighters entered service, notably the I-5, I-15, and the I-16. Operators Soviet Air Force Specifications (I-3) See also References Bibliography 1920s Soviet and Russian fighter aircraft I-003 Sesquiplanes Aircraft first flown in 1928