N-I

The first N rocket, a licensed Thor-Delta with a Japanese second stage, flown from 1975 to 1982. It launches the early Kiku engineering test satellites, among them Japan's first geostationary satellite.

Launches

7

Success rate

86%

0 failures · 1 partial

First flight

9 September 1975

Kiku-1

Last flight

3 September 1982

Kiku-4

Builder

MHI

Height

34 m

Diameter

2.4 m

Stages

3

Boosters

3 × Castor 2

Propellants

Solid, Kerosene / LOX, Aerozine 50 / N2O4

Payload to LEO

1,200 kg

Payload to GTO

360 kg