BLUE 1S
Perigee Aerospace
Turbopump-fed LOX/LNG main engine used in the Blue Whale 1 first stage.
Typed specifications6 values
Discloses 3 of 10 fields engineers filter by in this category (category median 3).
- Thrust
- 34 000 000 mN product page 38 000 000 mN
- Specific impulse
- 324 s product page 362 s
- Propellant
- oxygen product page methane
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier9 lines, in the manufacturer's own wording
- Propellant
- LOX/LNG (liquid methane)
- Engine cycle
- Gas generator (open cycle)
- Feed system
- Turbopump-fed
- Sea-level thrust
- 34 kN
- Vacuum thrust
- 38 kN
- Sea-level ISP
- 324 s
- Vacuum ISP
- 362 s
- Application
- Blue Whale 1 first stage (9 engines)
- Manufacturing
- Fully vertically integrated, in-house turbopump and chamber production
About
BLUE 1S is Perigee Aerospace’s high-performance turbopump-fed main engine, used nine-across in the Blue Whale 1 first stage. It burns LOX/LNG (liquid methane) propellant using a gas generator open-cycle design that minimizes complexity and cost while maintaining reliability. BLUE 1S produces 34 kN of thrust at sea level (38 kN in vacuum), with a specific impulse of 324 s at sea level and 362 s in vacuum. The engine features an electroformed combustion chamber engineered for exceptional thermal performance and a turbopump-fed feed system delivering an outstanding thrust-to-weight ratio. Perigee manufactures BLUE 1S fully vertically integrated, producing its own turbopumps and combustion chambers in-house.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.