A turbine integrated within {HEAD ~ a hydrofoil} extracts {TAIL ~ energy} from a free flowing motive fluid 
A turbine integrated within { HEAD ~ a hydrofoil } extracts { TAIL ~ energy } from a free flowing motive fluid
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH