Azi wrote:@eehnie what kind of complete and utterly bullshit you are posting here?
The Mig-31K is a modification of the Mig-31, but the Tu-22M is a complete new design and not just a modification of the Tu-22! Just look at the picture! Do you have eyes or not???
Tu-22 is no swept wing design, the engines are at a complete different position, the airframe itself looks complete different! Not a single Tu-22 was modernized into the Tu-22M, because it's a a complete different plane. Of course they used a lot of technology and experience from Tu-22 for the Tu-22M (nearly same intended role), but the words "deep modernization" means something complete different...not old planes modernized from Tu-22 to Tu-22M, it means a nearly complete new design!
The Tu-22M designation was a ploy by the Russian military to develop a replacement for the Tu-22 which was a great disappointment. They got the government approval based on "upgrading" the Tu-22 but the reality is that the Tu-22M is a new design that leveraged a few Tu-22 components (eg fwd fuselage sections and undercarriage?) to save money.
Some people continue to argue the Tu-22M is an upgraded Tu-22, just like others argue the Tu-95 is based on the Tu-4...