NOVELTY - An inline-pipeline electric motor-generator propeller module has inward pointing propeller blades directly coupled to ring shaped rotor of brush-less variable speed electric motor-generator, two radially and laterally supporting roller bearings to provide support of the rotor in the OFF mode of operation, and two lateral interfacing phalanges to provide air and watertight assembly.    USE - For propulsion or harnessing of energy including air, water, oil and gas pipelines, the powering of vessels and the harnessing of ducted air, steam, river rapids, ocean currents, tides and wave directly to electricity (claimed).    ADVANTAGE - The invention has inward facing propeller blades with the ability for propulsion and harnessing of energy. It operates within a self-contained electromagnetic field that forms a virtual electromagnetic bearing to provide long life and highly efficient operation. The OFF mode of operation provides for many years of maintenance free operation. The propeller blades design is specifically adapted to particular application to achieve the best overall efficiency of operation.    DETAILED DESCRIPTION - An inline-pipeline electric motor-generator propeller module apparatus comprises:    (a) at least two inward pointing propeller blades (16) for propulsion or harnessing of energy directly coupled to ring shaped rotor of a brush-less variable speed electric motor-generator;    (b) a molded ring shaped rotor fitted with permanent magnets radially and laterally with stator electromagnets in tow complementary ring shaped molded covers for providing three individual brush less variable speed motor-generators operating within a self-contained electromagnetic fields to provide a virtual electromagnetic bearing on the ON mode of operation;    (c) a ring shaded motor-generator having radial and lateral roller bearings specifically adapted to provide support in the OFF mode of operation;    (d) a press fitted U shaped in two semicircular molded ring shaped cover having strut like reinforcing heat sink fins (15) and two lateral phalanges (12) specifically adapted to interface the pipeline;    (e) two ring shaped sealing ring cavities within the inner walls of the phalanges and the ring shaped rotor with self lubricated Teflon (RTM; polytetrafluoroethylene) compression spring sealing rings for providing a watertight seal;    (f) a water tight junction box forming a pedestal for the electrical connections; and    (g) propeller blades optionally molded as integral part to the ring shaped rotor, or on a separate casting adapted to the rotor, or as individual blades either molded or fabricated of a particular material to better suit a particular application.    DESCRIPTION OF DRAWING(S) - The figure is a perspective view of an inline-pipeline electric motor-generator propeller module installed to a pipeline cutout sections.    Phalanges (12)    Strut fins (15)    Propeller blades (16)