PRELIMINARY ORBIT DETERMINATION FOR A MOON SATELLITE FROM RANGE-RATE DATA
This relation is plotted in Fig. 2. It is noteworthy that with moderate mass flow ratios the total pressure of the outflowing secondary flow can be considerably higher than that of the inflowing primary. This points to the possibility of promising looped arrangements (turbocompressors, gas generators, turbojets) in which some or all of the extracted secondary flow is energized through heat addition to form the primary source. These results are in general agreement with those obtained by a different procedure in Ref. 2, for fully looped systems, with consideration of compressibility effects.