The Pipistrel Velis Electro taxis at Ecuvillens airfield in western Switzerland. Credit: Kimberly Henneman Our look at the first certified electric airplane continues with a flight on the Pipistrel ...

Editor's Note The accompanying article is the first of four, adapted by permission from papers presented at a recent Standard Oil Development Company seminar on Fuels of the Future. Each paper deals ...

"This manual is a reference for flight engineers and for use in the continuous upgrade training of those performing duties of flight engineer." Caption title ...

Reciprocating engines in sizes from a few kilowatts to several MW are used to generate electricity by utilities, hospitals, manufacturing plants and commercial buildings. For many years these engine ...