In-flight atmospheric oxygen collection for oxidizer supplying on the rocket part of trajectory may be considered as the base of self-sufficient aerospace plane (ASP) concept as well as reserve of known ASP concept such as NASP, SANGER, NAL/MHI.
The thermodynamic analysis of the system of air cooling and partially condensation is conducted. Dependence of oxygen collection ratio (collected oxygen flow rate divided by wasted hydrogen flow rate) on different parameters and its influence on collection system mass and ASP payload fraction are shown.
Some possible variants of power plant and flight liquid oxygen plant (FLOX plant) integration is examined.
Comparative analysis of the data on FLOX plant from available references is conducted. Data on FLOX plant mass is compared with original synthesize calculation dependence of FLOX plant mass on collection ratio.
The main study result is optimization of single stage ASP payload fraction with taking into account real FLOX plant mass.
Configuration of FLOX plant and its location on single stage ASP is developed.