Spectrum

Overview

Isar's two-stage orbital small-lift rocket: 28 meters tall, 2 meters in diameter, carbon-composite primary structure, propane and liquid oxygen, nine 75 kN Aquila gas-generator engines on the first stage and one 95 kN vacuum Aquila on the second stage with multi-ignition so it can circularize and deploy without a kick stage. Payload is 1,000 kg to low Earth orbit or 700 kg to sun-synchronous orbit. It is designed, built, and tested almost entirely in-house. Flight 1 failed; Flight 2 reached orbit from Andoya on September 5, 2026.

One successful orbital flight (Onward and Upward, September 5, 2026). Vehicles 3-7 are in production. A third flight is expected soon, then at least four missions in 2027, with 2028 capacity already fully contracted. First flights from Spaceport Nova Scotia are targeted for 2028.

Key Specs

Height / Diameter

28 m / 2 m

Payload

1,000 kg to LEO; 700 kg to SSO

Propulsion

9 x Aquila (75 kN each) first stage + 1 x Aquila vacuum (95 kN), propane/LOX, gas-generator cycle

Flights

2 launched, 1 orbital success (Sept 5, 2026, ~500 km SSO)