What is dastardly and mutley in their flying machines?

"Dastardly and Muttley in Their Flying Machines," also known simply as "Dastardly and Muttley," is an American animated television series produced by Hanna-Barbera Productions. The show originally aired on CBS from September 13, 1969, to January 3, 1970, and was later syndicated under the title "Stop That Pigeon." The series consists of 17 episodes.

The show follows the adventures of the fictional World War I British flying squadron led by the villainous Dick Dastardly and his canine sidekick Muttley. The duo, along with their fellow aviators Klunk, Zilly, and Yankee Doodle Pigeon, engage in various attempts to catch the elusive pigeon. However, their schemes often backfire due to Dastardly's incompetence and Muttley's tendency to laugh at their misfortunes.

"Dastardly and Muttley in Their Flying Machines" is known for its slapstick humor, distinctive characters, and memorable catchphrases, such as Dastardly's "Drat, drat, and double drat!" and Muttley's trademark snickering laugh. The series has since become a cult classic and remains a favorite among fans of Hanna-Barbera cartoons.