YEKATERINBURG. Sept 15 (Interfax) - The methane engines which are being developed for a super-heavy lunar rocket will make it possible to reuse the carrier rocket stages, head of the Roscosmos state corporation Dmitry Rogozin said.
"The methane engine will enable us to reuse the stages of this super-heavy rocket. [...] If we want to create this system, then it must be reusable," Rogozin told reporters.
"We hope to get them [the engines] by 2024-2025," he said.