Smithsonian Report. 1962. — Taylor 



Plate 22 



1. General Elecuic turbo-supercharger on Liberty engine, instalkxl in \a-\\- 

 which held the world altitude record for 1920, 1921, 1922. 



I plane 



2. Night \"iew of a turbo-supercharger in operation, the same installation as in fig. 1 above. 

 The exhaust manifolds and the nozzle box are white hot from the high temperature of 

 1500° F., and the turbine is surrounded by hot gases while operating at over 20,000 r.p.m. 



