Electron

Rocket Lab''s Electron rocket introduced several innovations to the small launch market. Its Rutherford engine uses electric motors to drive its propellant pumps, powered by lithium-polymer batteries, instead of the traditional turbopumps driven by gas generators or preburners. This simplifies the engine design and allows the pumps to be precisely controlled electronically.

Electron''s engine components, including the combustion chamber and injector, are 3D-printed using electron beam melting, reducing manufacturing time and cost. The rocket can deliver approximately 300 kilograms to low Earth orbit, targeting the growing market for dedicated small satellite launches.

Rocket Lab has experimented with booster recovery, using parachutes and mid-air helicopter capture to retrieve first stages. The company''s launch site on New Zealand''s Mahia Peninsula provides access to a wide range of orbital inclinations with minimal air and sea traffic concerns.