Same for US bombers - the B52 also first flew in 1952 and is expected to serve into the 2050s. Bomb trucks don't need ultramodern stealth, supercruise, vectored

Same for US bombers - the B52 also first flew in 1952 and is expected to serve into the 2050s. Bomb trucks don't need ultramodern stealth, supercruise, vectored thrust etc - they need air superiority provided by other aircraft, a big jet engine, and reliability.