An affinity charter is slightly different in that, although all of the passengers are affiliated with a specific business, group or organization, each pays his own air fare. The passengers might sports or music fans traveling to a special event, or a bunch of friends going on vacation. With this type of charter, none of the seats can be sold to members of public.
Prospective aircraft buyers often look for private jets for sale by searching Google, gathering information on various makes & models and their performance characteristics, and on condition, age, price and other information about specific jets for sale. Most private airplane buyers use standard phrases like: "private jets for sale", "private jets on sale" or "private jets on market" for their search. Some prefer more specific terms that may include a manufacturer’s name along with the aircraft model number, and configuration features such as a particular upgraded avionics package. Searching for aircraft for sale online using very specific terms may miss some listings due to variations in identification, for example “Gulfstream G550” vs. “Gulfstream G-550.” More inclusive searches, such as “Gulfstream, large-cabin jet” yield more results.
Though the early Lockheed Jetstar had four, most production business jets have two jet engines, mostly rear-mounted podded engine. If mounted below their low wing, it wouldn't allow sufficient engine clearance without a too long landing gear. The HondaJet is the exception with its over the wing engine pods. Dassault Falcon still builds three-engine models derived from the Falcon 50, and the very light jet market has seen several single-engine design concepts and the introduction of the Cirrus Vision SF50 in 2016.