Rocket engines. In the year 1963 an L-5.00H engine of 312,900 Kgf in vacuum that was running on LOX/LH2, was installed on the Nova GD-H.

-The L-5.25H with a thrust of 278,900 Kgf, the L-6.55, the L-7.70, and the L-6H are known. Chapter in development.