Definition: The term "aircoaches" seems to be a misspelling or a typo in the context provided, which could potentially be referring to the usage of airships, not aircoaches themselves. The original phrase appears to mean something related to aircraft transport during times when space travel was limited due to limitations such as weight and aerodynamics. The word "aircoaches" has been lost or used incorrectly, possibly in a different context. However, without additional information about the intended context or usage, it's difficult for me to provide a complete definition. If you're referring specifically to airplanes that were designed for space travel due to their reduced weight and aerodynamic capabilities, they could be known as "airships" rather than "aircoaches." Airships are also often associated with spaceships or similar futuristic aircraft designs.
closed bracket.
what should be said.