The Aerodrome
During the turn of the 20th century, the genius scientist Samuel Pierpont cooked up an aircraft capable of flight lasting more than a mile. His efforts resulted in the initial piloted powered flight. The Aerodrome shook the entire aeronautical world by achieving a 52 hp radial alongside an impressive power-to-weight ratio. These stats couldn’t keep it airborne, however, having crashed into the Potomac River on two occasions.
The McDonnell XF-85 Goblin
This type of plane was known as a “parasite fighter”. It was meant to be latched onto bigger aircraft and be deployed when its host plane came under attack. Such a tiny plane was quickly outgunned and outmatched by any standard-sized fighter jet, however, and the parasite fighter line was quickly scrapped.