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Reaver

Firefly Aerospace Reaver is a tap-off-cycle LOX/RP-1 first-stage engine. Firefly Alpha user guides specify four Reaver engines on the active Alpha first stage; the Block I and Block II vehicle boundaries remain distinct application configurations. Lifecycle remains active.

Identity

Aliases
Reaver 1
Domains
spaceflight
Identity Level
model
Kind
liquid-rocket-engine
Name
Reaver
Status
active

Details

Description
Firefly Aerospace Reaver is a tap-off-cycle LOX/RP-1 first-stage engine. Firefly Alpha user guides specify four Reaver engines on the active Alpha first stage; the Block I and Block II vehicle boundaries remain distinct application configurations. Lifecycle remains active.
Developers
Manufacturers
Propellants
RP-1liquid oxygen
Rocket Specs
Cycle
tap-off
Vacuum Specific Impulse S
295.6

Links

Assets & Meta

Creation Time
July 29, 2026 at 08:54:11 UTC
Updated Time
August 15, 2026 at 04:29:37 UTC

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Sources