759
The smallest airplane in the world
This extraordinary fighter - McDonnell XF-85 Goblin - was designed specifically to house in the bomb bay of intercontinental bombers to protect them from enemy interceptors.
Only 4.5 meters in length, this fighter had to be placed in one of the compartments of the first intercontinental bomber Convair B-36 Peacemaker, but these plans did not come true, and except in tandem with the B-29 Goblin unused.
In the first flight when docking test pilot lamp broke and lost oxygen mask, but, despite this, he is still able to make an emergency landing. As a result, the Goblin and did not get into production, as many of the technical difficulties of such a scheme were not resolved.