Data Repository Civil and Commercial SpaceSpace Security Comparing Medium to Heavy Lift Launch Systems Last UpdatedJuly 5, 2022 ShareView in the Data Repository This data is featured in “Beyond the RD-180,” a featured report from the CSIS Aerospace Security Project. Read "Beyond the RD-180" Launch providers often advertise the maximum mass their systems can place into low Earth orbit (LEO) and geosynchronous transfer orbit (GTO). Here’s how the most frequently utilized launch systems compare.