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Draper

STORABLE AND FLEXIBLE FOR A RAPID RESPONSE

4,000 lbf

Thrust, Sea Level

Hydrogen Peroxide/Kerosene

Propellants

Reusable

Hypersonics, Defense

ursamajor draper web

Draper

in development

As a storable evolution of the Hadley engine, Draper provides a wide throttle range, multiple restarts, and mission flexibility to better address the evolving capabilities of our adversaries.

ursamajor draper web

Specifications

4,000 lbf

Closed Catalyst Cycle

Thrust, Sea Level

Hydrogen Peroxide/Kerosene

Propellants

Reusable

Hypersonics   Defense

ursamajor draper web

EXPLORE OUR ENGINES

Hadley Engine

In Production

Hadley

5,000

lbf

Ox-rich Staged Combustion

Thrust, Sea Level

Lox / Kerosene

Propellants

Reusable

Low Earth OrbitGeostationary OrbitIn-SpaceHypersonics

In Production

Ripley Engine

In Development

Ripley

50,000

lbf

Ox-rich Staged Combustion

Thrust, Sea Level

Lox / Kerosene

Propellants

Reusable

Low EarthGeostationary Orbit

In Development

Arroway Engine Render

In Development

Arroway

200,000

lbf

THRUST, SEA LEVEL

Lox / Methane

PROPELLANTS

Reusable

Medium & Heavy Boost

In Development