Compare · Rockets

Energiya/Buran vs Kii-based Advanced & Instant ROcket System

RANKED BY PAYLOAD TO LOW EARTH ORBIT #5 VS #266 CHECKED 29 SEPT 2026

Side by side

Verdict

Energiya/Buran ranks #5 of 311 on Payload to low Earth orbit (90,400 kg); Kii-based Advanced & Instant ROcket System ranks #266 (250 kg).

Rank 05 of 311 · leads

Payload to low Earth orbit

90,400 kg

Launches1

Success rate100%

Payload to GTO—

First flight15 Nov 1988

Height97 m

Liftoff thrust35,301 kN

Launch mass2,629 t

Launch cost—

ReusableYes

StatusRetired

Rank 266 of 311

Payload to low Earth orbit

250 kg

Launches3

Success rate0%

Payload to GTO—

First flight13 Mar 2024

Height18 m

Liftoff thrust—

Launch mass—

Launch cost$9,000,000

ReusableNo

StatusActive

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