LAUNCHER ENGINE-2

A 3D printed E-2 combustion chamber, the world’s largest 3D printed single part combustion chamber. Shown here in an aluminum prototype, E-2 will be 3D printed in copper alloy (CuCrZr).

A 3D printed E-2 combustion chamber, the world’s largest 3D printed single part combustion chamber. Shown here in an aluminum prototype, E-2 will be 3D printed in copper alloy (CuCrZr).

Launcher Engine-2 will be the highest performance engine in the small satellite launcher class—with the largest thrust, lowest propellant consumption and lowest cost per-pound of thrust.

Generating 10 tonne-force of thrust per engine (22,000 lbf), four Engine-2 liquid rocket engines will power the first stage of Rocket-1. A fifth vacuum-optimized Engine-2 engine will power the second stage.

Engine-2, or E-2, is also available for sale to commercial and government customers for integration with their own launch vehicles.

How will E-2 reach its high-performance target? By applying orbit-proven engine design, 3D printing in copper alloy and leveraging the 30+ years of experience of Launcher’s Chief Designer with the highest performance oxidizer rich staged combustion engines.

E-2 is currently in active development, with more than 100 tests of the sub-scale Engine-1 validating its path to industry-leading performance levels. Our first full-scale test is scheduled for early 2020.

 

Launcher E-2 cycle details - Metric Units shown. U.S. Customary Units

PROVEN DESIGN CHOICES:

  • Kerosene (RP-1) & liquid oxygen (LOX) propellants

  • Closed cycle (oxidizer rich staged combustion)

  • High combustion pressure (1,400psi)

  • Optimal oxidizer / fuel mixture ratio (2.62)

  • Unique dual-propellant cooling (liquid oxygen for the throat and cylinder, kerosene for nozzle)

  • Copper alloy as combustion chamber material (CuCrZr)

  • Licensed orbit-proven liquid oxygen pump design

  • Performance: 365s specific impulse (Second stage nozzle). First stage nozzle - 327s vacuum, 290s sea level

 
Launcher-E1-CUCrZr-Powder.jpg

3D PRINTED IN COPPER ALLOY

  • Reduces cost, complexity and manufacturing lead time for most parts, including the combustion chamber, injector and turbopump.

  • World’s largest single part 3D printed combustion chamber, leveraging a custom printer by our partners EOS & AMCM. Printing in a single piece reduces costs and enables highest performance regenerative cooling design.

 

SUB-SCALE TESTING

  • Before scaling to the full-size E-2 engine, Launcher is proving its design and 3D printed materials on the sub-scale version Engine-1, or E-1. Launcher has performed over 100 tests of E-1 at our dedicated test site.

  • Thanks to Launcher’s design, the use of 3D printed copper alloy, and our unique liquid oxygen cooling system, our E-1 sub-scale engine is so efficient (over 98%) that it produces a blue exhaust plume—unprecedented for kerosene engines.

  • Proven for over 15 minutes of test time at the highest performance combustion mixture ratio between liquid oxygen and kerosene - 2.62.

  • Proven in both kerosene cooled and liquid oxygen cooled version.