New unmanned cargo transfer spacecraft (HTV-X)

HTV-X, the new unmanned spacecraft now being developed by JAXA as the successor to the "Kounotori" (HTV)

SPECIFICATIONS

The specifications of the HTV-X which is currently under development.

Height
8.0m
Diameter
4.4m
Launch Mass
16,000kg
Pressurized Payload Mass
4,070kg
Unpressurized Payload Mas
1,750kg
Orbital Altitude
300-500km
Orbital inclination
51.7deg
The ISS berthing period
Up to 6 months
Flight period after leaving the ISS
Up to 18 months
(Technology Demonstration Mission Phase)