The SpaceX Starship was analyzed with up to 9 engines and 28.7 million newtons of thrust.

The Saturn V had 34.5 million newtons (7.6 million pounds) of thrust at launch.

The 9 engine SpaceX Starship upper stage would have 83% of the thrust of the Saturn V booster stage.

An 11 engines SpaceX Starship upper stage would surpass the thrust of the Saturn V.

There will be further improvements to the Raptor engines which will allow the 9 engine version to surpass the thrust of the Saturn V.

The FAA has a draft tiered Environmental Assessment for SpaceX Starship/Super Heavy Launch Vehicle Program to increase the launch and landing cadence to 25 per year. The 2022 FAA analysis was permitting 5 launches.

The FAA has concluded that the modification of SpaceX's existing vehicle operator license for Starship/Super Heavy operations conforms to the prior environmental documentation, consistent with the data contained in the 2022 PEA, that there are no significant environmental changes, and all pertinent conditions and requirements of the prior approval have been met or will be met in the current action.