• Nominal Payload110kg
  • Nom. Sun Sync. Orbit500km
  • Stages2
  • Diameter1m
  • Height18m
  • PriceUSD 4.9m

Rutherford Engine

Following patent finalization, Rocket Lab will reveal the Rutherford engine, the heart of the Electron vehicle. The Rutherford engine is a regeneratively cooled LOX/Kerosene engine, developed in-house at Rocket Lab. World-first pump technologies and manufacturing methods make Rutherford the world's most advanced engine yet. Learn more...


Electron's avionics are responsible for flight sequencing, data recording, navigation, guidance and control, all the way to orbit. Learn more


Electron's second stage contains the payload and main flight avionics responsible for delivering our customer's payload to a precise orbit.


  • 110kg to 500km LEO
  • Solid Propellant 3rd Stage Engine
  • TVC & CGT control

Second Stage

The second stage is powered by our Rutherford Vacuum Engine with improved vacuum performance over our first stage Rutherford Engine. Learn more...

Quick Facts:

  • Propulsion: 1x Rutherford Vacuum engine
  • Total thrust: 18kN (4000 lbs)

Carbon Composite Tank

Rocket Lab's innovation in carbon composite techniques began with the Atea-1 vehicle in 2009. The innovation is continued in Electron, which uses an all-carbon composite construction for impressive weight savings and a larger payload to orbit. Learn more...

Quick Facts:

  • Nominal Orbit: 110kg to 500km sun synchronous
  • Lift off mass: 10,500 kg (23,200 lbs)

First Stage Propulsion

Electron's first stage is powered by nine Rutherford engines with a total peak thrust of 146.6kN, enough to lift a fully laden double decker bus off the ground.

Quick facts:

  • Propulsion: 9x Rutherford engines
  • Lift off thrust: 120kN (27,000 lbs)
  • Peak thrust: 146kN (34,000lbs)
Payload Internals
Stage 2 inner
Stage 3 Left
Payload Left
Payload Right
Stage 2
Stage 1
Payload Internals

About Rocket Lab