Presentation of the DNV GL certificate by Dr. Olaf Richter (right) in the presence of his inspector, Dieter Ekat (2nd from left) who supported the test series, to Piening boss Mathias Pein (2nd from ...

At the SMM exhibition and conference in Hamburg, Germany, Wärtsilä is introducing its latest development of large Controllable Pitch (CP) Propellers, based on the previously known E-hub type. The new ...

Bob Gallop, Yingling Aviation’s vice president of repair station operations, demonstrates equipment at Yingling Propeller’s new building that measures the density of an airplane propeller. Jerry ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. The world’s first modern airliner, the Boeing 247 revolutionized air transportation when it entered service with ...

The federal investigation into the sinking of the Alaska Ranger has prompted the Coast Guard to issue an unusual safety warning to ship owners about the risks of controllable-pitch propellers that can ...

The stock market crash of 1929 and the Great Depression threatened the continued existence the American aviation industry just as it started to grow in the wake of unprecedented government legislation ...

The JOHN A. RYDER, clam dredging research vessel of the Maryland Department of Research and Education, was converted from dual-engine to single-engine powering of the pumping and propulsion systems ...