Compare · Rockets

N-I vs Conestoga 1620

RANKED BY PAYLOAD TO LOW EARTH ORBIT #209 VS #210 CHECKED 29 SEPT 2026

Side by side

Verdict

N-I ranks #209 of 311 on Payload to low Earth orbit (1,200 kg); Conestoga 1620 ranks #210 (1,179 kg).

Rank 209 of 311 · leads

Payload to low Earth orbit

1,200 kg

Launches7

Success rate85.7%

Payload to GTO360 kg

First flight09 Sept 1975

Height34 m

Liftoff thrust—

Launch mass131 t

Launch cost—

ReusableNo

StatusRetired

Rank 210 of 311

Payload to low Earth orbit

1,179 kg

Launches1

Success rate0%

Payload to GTO—

First flight23 Oct 1995

Height—

Liftoff thrust—

Launch mass—

Launch cost—

ReusableNo

StatusRetired

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More N-I matchups

Source The Space Devs — Launch Library 2 Last checked 29 Sept 2026