Keith Moore wrote:

Hi Paul:

Nice Idea.  In the industry, its called a partial arc turbine.

To reduce drag. you may shield the exposed blades between the exhaust
pulse(s).  Also, the blades may be cooled in this portion of the arc.  Its
possible that they will never get very hot.   Thermal cycling then is the
design problem.

The Rocketdyne J-2 engine ran turbopumps on a O2/H2 fuel (potentially 6000F)
with such a concept.

Regards,

Keith (Black hat) Moore

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