Thrust chamber arrangement and method for operating thrust chamber arrangement

The invention relates to a thrust chamber arrangement having a thrust space having a first section, a second section and a third section which are connected to one another in sequence, the thrust space of all three sections being delimited by an outer nozzle wall having an outer thrust space surface, the outer thrust space surface tapers in a first section and a second section towards a third section, widens away from the second section in the third section, and forms a narrowest position at a transition from the second section to the third section, the first section being delimited by the inner nozzle wall and the second section being delimited by the outer nozzle wall. The inner nozzle wall is provided with an inner thrust space surface which is gradually reduced towards the second section; the thrust chamber arrangement further includes a plurality of first propellant inlets for a first propellant composition and a plurality of second propellant inlets for a second propellant composition, the outer nozzle