The nose of military aircraft is pointed. The sharper the nose is, the faster an aircraft is. But a longer nose keeps pilots from seeing the runway properly, that’s why passenger jets have rounded noses.
But Russian engineers solved this problem in the 60s. They invented the fastest passenger jet that was able to tilt its nose. While taking off and landing, the aircraft tilted its nose downward. During a flight, the nose was brought back to its starting position.
This strange design has a purpose: it helps pilots see the runway better.