For the transfer of payloads into the orbit (e.g. satellites) high costs are necessary, because the deployable payload fraction is technically is technically limited. So far, only 1-4% of the total payload mass of chemical rockets can be burned. of the total launch mass can be expended.

The general trend towards aerospace is being driven by new providers (e.g. Isar Aerospace, HyImpulse, Rocket Factory), launch sites (e.g. plans for Rostock-Laage and Shetland / Sutherland in Great Britain), efforts for space mining (e.g. from Luxembourg), the planning of new space stations (e.g. Lunar Gateway), the increase of data volume via satellite communication and increasing research.

Currently only a few percent of the total launch mass can be used as a payload with chemical of the total launch mass can be used as payload. Typically 1-4% of the total launch mass can be placed in Low Earth Orbit (LEO). Earth orbit. Predominantly, an oxidizer must be carried (e.g. liquid oxygen). The mass of the oxidizer can be up to up to about 75% of the total launch mass of the rocket. Approx. 15% of the total launch mass is accounted for by the other propellant, e.g. hydrogen (Figure 1).

Chemische Raketen: Aufteilung Masse und Schub
Figure 1: State of the art - payload and usable thrust in red

The goal of the project is to increase the payload capacity of chemical rockets. The name load project is derived from an intended shift from a non-usable load portion ("dead load") to a payload portion to a payload portion - hence simplifying for payload project. However, since the Starship, for example, has already achieved planned total takeoff masses of approx. of approx. 5,000 t will be achieved with the Starship, this designation is also to be limitation of the total takeoff mass.

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