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Lawes, Alexander - Ring of Stones, e-kirja

Ring of Stones

Lawes, Alexander

3,55€

“Do you trust me?” When Anna’s dirt bike pulled up alongside late one summer’s evening, Harry grasped the opportunity to escape the city and his troubles, but he never imagined the mysterious girl would lead him across the galaxy to another world. Transported…

Seddon, John M. - Basic Helicopter Aerodynamics, e-kirja

Basic Helicopter Aerodynamics

Seddon, John M.

72,60€

Early chapters deal with the aerodynamics of the rotor in hover, vertical flight, forward flight and climb. Analysis of these motions is developed to the stage of obtaining the principal results for thrust, power and associated quantities. Later chapters turn to the