An underground airplane is proposed as a rapid transit system between large cities. A large-diameter tunnel is constructed and medium-size airplanes are operated at around 600 km/hr. The tunnel can be used also for storage and transportation of material, energy, and information.
Chichuu Hikouki No Aideia (Idea of Underground Airplane)
1992
3 pages
Report
No indication
English
the idea of the partial stealth facility of the airplane by plasma
European Patent Office | 2016
|Airplane spoiler manufacturing method, airplane spoiler and airplane
European Patent Office | 2015
|AIRPLANE ASSEMBLY, AIRPLANE WING ASSEMBLY AND METHOD FOR MANUFACTURING AIRPLANE
European Patent Office | 2024
|