In the preferred embodiment, {HEAD ~ the turbine} is of {TAIL ~ the crossflow variety} with runner blades coaxial to the width of the hydrofoil 
is of
In the preferred embodiment , { HEAD ~ the turbine } is of { TAIL ~ the crossflow variety } with runner blades coaxial to the width of the hydrofoil
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH