Parasite Issues
Because it’s a “parasitic fighter,” the McDonnell XF-85 Goblin had no trouble taking off from the ground. The Goblin was supposed to attach itself to a larger plane. When it came into contact with hostile planes, the Goblin could detach and fight them off.
In someone’s head, the theory seemed excellent, but it didn’t function well in actuality. The Goblin’s main duty – its — was proving difficult. Other planes’ weaponry just outgunned the 50-cal machine gun. The project came to an end, and the Goblin was seen as a complete failure.
The next Soviet jet is not only unsightly, but it also failed as a commercial airline.