Kankoh-maru
Japanese orbital vehicle design
From Wikipedia, the free encyclopedia
The Kankoh-maru (観光丸, Kankōmaru) is a proposed vertical takeoff and landing (VTVL), single-stage-to-orbit (SSTO), reusable launch system (rocket-powered spacecraft) by the Japanese Rocket Society [ja].[4]
Artist's concept of Kankoh-maru | |
| Function | Crewed re-usable rocket |
|---|---|
| Country of origin | Japan |
| Size | |
| Height | 23.5 m (77 ft)[1] |
| Diameter | 18 m (59 ft)[1] |
| Mass | 550 t (1,210,000 lb)[1] |
| Stages | 1 |
| Capacity | |
| Payload to LEO | |
| Mass | 50 t (110,000 lb)[2] |
| Launch history | |
| Status | Proposed[3] |
| First stage | |
| Thrust | 6,888,000 N (1,548,000 lbf) [1] |
| Boosters | |
| Total thrust | 2,900,000 N (650,000 lbf) [1] |
Overview
The concept was proposed by the Japanese Rocket Society [ja] in 1993.[3] Although it was not an official project of any aerospace company, and no manufacturing plan was ever confirmed, a hypothetical flight manual presented at the July 1997 International Space Conference of Pacific-Basin Societies (ISCOPS) refers to the vehicle as the Kawasaki S-1.[1] The estimated development cost was about ¥3.8 trillion (1995) (US$40.4 billion) in 1995.[4]
The name Kankō Maru is derived from the first steam-powered vessel in Edo-era Japan.[3]