Rockwell B 1 Lancer
In short
The Rockwell B-1 Lancer is a supersonic heavy bomber used by the United States Air Force. It features variable-sweep wings that allow it to fly at high speeds or carry heavy loads.
In plain words
This is a large aircraft designed to drop many bombs over long distances. Its wings can move back or forward to help it fly better in different situations. It is often called the Bone.
A simple example
A B-1 Lancer can fly low to the ground to avoid radar while carrying a massive amount of weapons to a target.
Why it matters
It provides the US military with a fast way to deliver huge amounts of firepower. It remains a key part of the nation's strategic bomber fleet alongside the B-2 and B-52.
Easy to mix up
Do not confuse it with the B-52 Stratofortress, which is much slower and does not have moving wings.