The premise of the cartoon is that Jimbo was originally intended to be a Jumbo Jet, but his designer could not tell the difference between inches and centimetres, resulting in his diminutive size. If Jimbo's designer switched the imperial (inches) measurements of the Boeing 747 for metric (cm), the result would have been an aircraft with a fuselage length of 91 ft; this would make Jimbo roughly the length of an early-series Boeing 737 (94 ft).
The television series features various talking airport-type ground vehicles: Tommy Tow-Truck, Claude Catering, Amanda Baggage, Phil the Fuel Truck, Sammy Steps and Harry Helicopter. Other plane characters appear from time to time, such as Old Timer, a Vickers Wellington bomber who gets into the story while flying to or from an airshow. The story is based at a fictional "London Airport", under the command of an irate controller who frequently ends episodes screaming "I want words with you, Jimbo!".
Some printed material and toy merchandise featured Gloria Gatwick, a female counterpart to Jimbo, but she did not appear in a speaking role within the TV episodes, except one brief appearance in one episode, where she can be clearly seen from a top-viewed angle.
Famous quotes containing the word jet:
“But every jet of chaos which threatens to exterminate us is convertible by intellect into wholesome force. Fate is unpenetrated causes.”
—Ralph Waldo Emerson (18031882)