Key Data About Nearly 200 Jets, Turboprops and Helicopters

在飞机选择方面，我们并不局限于以十年为期，而是提供所有自1993年后生产的商用飞机及直升机的信息。因此，我们拥有所有1993年后制造的飞机型号的信息。我们同时也关注某些1993年之前生产的型号，因为长期稳定的飞行表现是某一成功型号的重要标志。此外，我们还加入一些有望立即获准生产的飞机型号。

As soon as its first owner departs from the ­manufacturer’s delivery center, a new airplane ­technically becomes used (or pre-owned). For various ­reasons, however, the milestone separating “newer” used ­business aircraft from “older” ones is generally ­considered to be 10 years after the manufacturing date of each individual aircraft.

In deciding which aircraft to cover, we went beyond this 10-year mark to provide information on all business airplanes and helicopters manufactured since 1993. Therefore, our list includes models manufactured well before that year, as long as they were produced as recently as 1993. Some models manufactured for many years before 1993 are included, too, because a long production run is indicative of a successful aircraft. In addition, we added the new models that we could reasonably expect to be certified and go into production soon.