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Rocket file · LV-551

Firefly Alpha Block 2

Firefly Aerospace · Firefly Alpha · IN SERVICE

Firefly Alpha Block 2 is an expendable launch vehicle built by Firefly Aerospace. It stands 31.6 m tall, lifts 1,030 kg to low Earth orbit. It hasn't flown yet. Its next flight is Firefly Alpha Block 2 | ConnectedCosmos Launch 1 for Firefly Aerospace, no earlier than Q4 2026.

Specification

Vehicle spec sheet

ON FILE
Height31.6 m
Diameter1.8 m
Payload to LEO1,030 kg
Payload to GTONOT ON FILE
Maiden flightNOT ON FILE
ReusableNo, expendable
Launch cost$15M
StatusIN SERVICE

As listed by Launch Library 2. The cost is Launch Library’s figure, not a quoted price. Figures for rockets outside the sixty most-flown were last read on 2026-11-05.

Flight record

Reliability

NO FLIGHTS
Total flights0
Successful0
Failed0
Success rateNO DATA
Landing attempts0
Landing successN/A
Scheduled7
VariantBlock 2

About Firefly Alpha Block 2

Firefly Alpha (Firefly α) is a two-stage orbital expendable launch vehicle developed by the American aerospace company Firefly Aerospace to cover the commercial small satellite launch market. Alpha is intended to provide launch options for both full vehicle and ride share customers. The Block 2 version features increased length and structural strength for both stages, optimized propellant tanks and consolidated in-house batteries and avionics.

Upcoming flights

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Common questions

How many times has Firefly Alpha Block 2 flown?
Firefly Alpha Block 2 hasn't flown yet, but 7 flights are scheduled.
What is Firefly Alpha Block 2's success rate?
Firefly Alpha Block 2 hasn't flown, so there's no success rate yet.
When is the next Firefly Alpha Block 2 launch?
Firefly Alpha Block 2 | ConnectedCosmos Launch 1, flown by Firefly Aerospace. It's set for no earlier than Q4 2026 from Space Launch Complex 2W.
How much can Firefly Alpha Block 2 lift to orbit?
Launch Library 2 lists Firefly Alpha Block 2 at 1,030 kg to low Earth orbit.
Is Firefly Alpha Block 2 reusable?
No. Launch Library 2 lists Firefly Alpha Block 2 as expendable, so no stage is recovered to fly again.