NASDA H-2 TRANSFER VEHICLE

Slide 98(A) of 99

Notes:

The H-2 Transfer Vehicle. The September 1988 Space Station Intergovernmental Agreement allowed ESA and NASDA to use the Ariane-5, H-2A or other indigenous launchers for resupplying their Station modules; NASA promised to provide all the necessary rendezvous and docking information to designers in Europe and Japan. Each partner will pay the full cost of maintaining its own hardware elements on the Station and they will also have to reimburse NASA for using Space Shuttle and Tracking & Data Relay Satellite services. The Japanese HTV shown here can transport about 6t of unmanned cargo to the Space Station. Unlike ESA's Automated Transfer Vehicle and Russia's Progress, the HTV can carry International Standard Payload Racks.

HTV & ISS rendezvous.

The $203 million Progress/ATV type "H-2 Tranfer Vehicle" is on track for a 2001 test launch. The Japanese will launch two 15-tonne HTV vehicles per year as their contribution to ISS operations. Pre-PhaseB studies were started in 1995. The HTV requires the development of a new twin-core version of the H-2A launcher.


Length	9.2m (Mixed Logistics Carrier Type)
Length	7.4m (Pressurized Logistics Carrier Type)
Diameter	4.4m
Weight	about 15 metric tons (at Launch)
Payloads	about 7 metric tons (Pressurized only)
Payloads	about 6 metric tons (Pressurized / Unpressurized mix)
Orbit	Altitude 460km~350km
Orbit	Inclination 51.6deg

Inside view of the HTV pressurized module.