The Larch was a family of
rocket engine intended as an upgrade to
Black Arrow launch vehicles. They were manufactured by
Rolls-Royce between 1965–1971. They burned kerosene fuel and
hydrogen peroxide.
References
{{Rolls-Royce aeroengines
High-test peroxide
Rocket engines using kerosene propellant
Larch
Rocket engines using hypergolic propellant