Engine trailers are important aircraft support equipments and process equipments

which are used to install remove engines and load transport large aircraft components. They play very important roles in aircraft maintenance flight test. Engine trailers of modern jet fighters are complicated equipments

which are made of some mechanisms and system. This article is based on elaborate study of massive foreign engine traler samples. Development of engine trailers is reviewed firstly. Then engine trailer technology is summarized and anylasized prominently

the included content as follows: design requirement coordinated design

design feature

structure composition

link mechanism key technology

standardization universalization serialization

trend of technology development. Advance engine trailer design samples are analysized subsequently. Finally

summary and forecast are given.