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H-I Rocket Model, 1:15 scale


Display Status:

This object is on display in the James S. McDonnell Space Hangar room at Steven F. Udvar-Hazy Center in Chantilly, VA.

H-I Rocket Model, 1:15 scale

Collection Item Summary:

This is a 1:15 scale model of the H-I, the third rocket built by Japan's National Space Development Agency (NASDA). The H-I had liquid-fuel engines on both its first and second stages, a solid-fuel third stage, and nine strap-on solid rockets to enhance boost at liftoff. It used a combination of American and Japanese technology. NASDA launched the H-I nine times from 1986 to 1992 with no launch failures, placing 13 communications, weather, ocean observation, and remote-sensing satellites in Earth orbit. The larger and more powerful H-II rocket, which first flew in 1994, replaced the H-I. NASDA built this model and donated it to NASM in 1991.

Collection Item Long Description:

Data Source

National Air and Space Museum


Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Gift of National Space Development Agency of Japan


Plastic and metal rocket w/plexiglass cutaway on top of third stage showing a generic satellite. Metal base.


  • Overall (1:15 scale): 9 ft. 7 9/16 in. tall x 1 ft. wide (293.5 x 30.48cm)
  • Other: 6 1/2 in. diameter (16.5cm)
  • Other (including stand): 115 9/16in. (293.5cm)

Country of Origin



MODELS-Missiles & Rockets

Inventory Number


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