Rides to Sun-sync,twelve times a year.
Polar Stage is a UK-headquartered small-launch operator running monthly rideshare flights from SaxaVord Spaceport to 550 km SSO. Book a 12U or 16U slot through this page; we'll build you into the next mission with spare capacity.
Six missions, next six months.
Current manifest, updated weekly. Slots marked OPEN are accepting new payloads up to payload-integration review (L-14 weeks).
Longbow Mk II.
A two-stage, kerolox vehicle designed for monthly reuse-free production cadence. First stage expended at sea; second stage disposed on mission-critical passivation.
- VehicleLongbow Mk IIBlock 3 · 2025-
- Height22.4 m / 73.5 ftFuelled
- Mass at liftoff41,800 kgGLOW
- Payload to SSO500 kg550 km, 97.5°
- Payload to LEO720 kg500 km, 51.6°
- S1 engines4× Aurora-EGas-gen, RP-1/LOX
- S2 engine1× Aurora-VVacuum, restartable
- Fairing ID1.5 mCleanroom-packed
- Insertion accuracy±3 km alt · ±0.02°95% confidence
- Success rate91.7%11/12 missions
Reserve your ride.
Smallsat rideshare slots from 3U CubeSat through 150 kg ESPA-class. Price starts at £62,000 for a 3U to 550 km SSO, including payload-integration services and insurance to launch.
How a booking runs.
From first conversation to payload delivery, the nominal cadence is fifty-two weeks. Fast-tracks to thirty-six weeks possible for flight-heritage payloads.
- 1Kick-offL-52w · slot held, ICD drafted, £10k deposit
- 2PDRL-32w · Preliminary Design Review, payload ICD fixed
- 3CDRL-18w · Critical Design Review, launch contract executed
- 4Payload integrationL-6w · delivered to our Leicester cleanroom
- 5LaunchT-0 · live mission console access for customer team
“Our university cluster went up on PS-09 at L-22 weeks from first conversation. Payload handover at the Leicester cleanroom was a half-day; the mission console during flight was the best piece of customer comms we've ever had from a launch provider.”Dr. Ophelia GriegPrincipal investigator · STFC University Cluster