Gas-Turbine Powerplants For Two-Phase Hydropropulsion 



®* © (i) A ®®t 



b) 



IB-FC(I) 



Fig. 26 - Pumpjector bypass powerplants 



The foreseeable profit of hybrid propulsors, which could be imagined as 

 either a conventional power system or a schematisation of a cryptosteady ex- 

 changer or an emergency auxiliary system for thrust augmentation was also 

 noted. It was expected that its performances were a compromise between the 

 water jet and the hydrojector. 



The analysis of a water jet was also introduced to allow an internal means 

 of comparison. Finally, afterburner systems were considered as conventional 

 systems of thrust augmentation. 



4.3 Powerplant Equations 



It would be exceedingly time consuming to expound in detail the systems of 

 equations which solve the fourteen powerplant configurations studied, even 



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