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N-I and N-II

Since 1975 NASDA has been conducting a parallel program of launching Japanese satellites for space technology and applications purposes using liquid-propellant vehicles. The original N-series (N-I and N-II) launch vehicles were developed under license from the US and were closely related to the Delta launchers. Flown during 1975-1987, the N-series was replaced by the H-l launch vehicle (first flight in 1986), a hybrid US-Japanese design.

Sources and Resources

• Adapted from: Europe and Asia in Space 1993-1994, Nicholas Johnson and David Rodvold [Kaman Sciences / Air Force Phillips Laboratory]

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