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Kii-based Advanced & Instant ROcket System vs Thor Delta A

RANKED BY PAYLOAD TO LOW EARTH ORBIT #266 VS #267 CHECKED 29 SEPT 2026

Side by side

Verdict

Kii-based Advanced & Instant ROcket System ranks #266 of 311 on Payload to low Earth orbit (250 kg); Thor Delta A ranks #267 (250 kg).

Rank 266 of 311 · leads

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

Rank 267 of 311

Payload to low Earth orbit

250 kg

Launches2

Success rate100%

Payload to GTO68 kg

First flight02 Oct 1962

Height31 m

Liftoff thrust667 kN

Launch mass50 t

Launch cost$9,590,000

ReusableNo

StatusRetired

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