Dyagilevo Air Base (Ryazan)

Dyagilevo is a military air base in Ryazan Oblast, Russia, located west of the city of Ryazan. It functions as the training centre for the Russian strategic bomber force.

In 1955 Dyagilevo was one of six Soviet airfields equipped to handle the Myasishchev M-4 bomber. By 1967 it operated Tupolev Tu-22s in the training role, and in 1973 it received its first Tupolev Tu-22M aircraft. The field housed the 43rd Centre for Combat Application and Training of Air Crew (43 TsBPiPLS), whose inventory included the Tu-22M, Tu-95 and the Tu-134UBL crew trainer. The 49th Heavy Bomber Aviation Regiment arrived in 1985 with Tu-22M and Tu-95 aircraft, subsequently converting to an instructor regiment under the 43rd Centre before disbanding in 1997.

The Russian Air Force assumed control of the base after the dissolution of the Soviet Union. By 1994 Dyagilevo had received Tu-95K bombers transferred there for elimination under the START II treaty. Numbers of Tu-16, Tu-22 and M-4 airframes remain mothballed at the site.

The 203rd Guards Orlovsky Independent Air Refuelling Aviation Regiment operates Ilyushin Il-78 and Il-78M tankers from the base; its presence was recorded in 2004 and it remained stationed there as of 2022. The regiment traces its lineage to the 412th Aviation Regiment, formed on 6 July 1941 at Monino with TB-7 (Pe-8) heavy bombers, renamed the 432nd Aviation Regiment weeks later and the 25th Guards Long-Range Aviation Regiment on 19 September 1943. The 1230th Aviation Regiment was redesignated the 203rd Independent Aviation Regiment on 1 December 1994.

As of 2009 three units were reported active at the airfield: the 1st Instructor Heavy Bomber Aviation Squadron with Tu-22M3 and Tu-134 aircraft, the 2nd Instructor Heavy Bomber Aviation Squadron with Tu-95MS and An-26 aircraft, and the 43rd Guards Orlovsky Centre for Combat Employment and Retraining of Personnel. As of 2022 the base hosted the 203rd Guards Regiment and the 49th Instructor Red Banner Heavy Bomber Aviation Regiment, the latter subordinate to the 43rd Guards Oryol Centre.

The 360th Aircraft Repair Factory (360 ARZ) is located on the base and was placed under European Union and United States sanctions in December 2022. The Ryazan Museum of Long-Range Aviation also occupies grounds at the airfield.