Charter operators own or manage private jets for multiple clients. Like traditional flight departments, charter companies handle all aspects of aircraft operation and maintenance. However, they are not aligned with just one corporation. They manage aircraft for a private owner or corporation and also handle the sales of available flight time on the aircraft they own or manage. Maintenance services can also be provided which typically include on-site or mobile repair, major and minor routine inspections, troubleshooting assistance away from base, avionics installation and repair, jet engine and battery service, interior modifications and refurbishment, Inspection Authority (IA) qualified inspectors, aircraft planning and budgetary projections, compliance with service bulletins, aircraft storage management, record keeping and management, technical appraisal of private jet purchases, leases and lease terminations, and Part 91 or Part 135 conformity inspections.
Charter companies offer a tailored service in which the client has a choice of meals, drinks, staffing levels and additional services. Tour companies aim to maximize profits, so public charters usually only provide a very basic service to passengers, with a cheap -- or no -- meal, minimal staffing and low baggage allowances. With a private charter, organizations can take advantage of options such as video conferencing, business services and corporate branding. In-flight meals are of a better quality, and passengers do not have luggage restrictions. With public charters, passengers still have to stand in line for check-in and security, so they need to be at the airport two to three hours before the flight. With a private charter, you can pass straight through security and onto the aircraft.
Under American and British accounting rules, a finance lease is generally defined as one in which the lessor receives substantially all rights of ownership, or in which the present value of the minimum lease payments for the duration of the lease exceeds 90% of the fair market value of the aircraft. If a lease is defined as a finance lease, it must be counted as an asset of the company, in contrast to an operating lease which only affects the company's cash flow.
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.