April 8, 2006 One of the greatest difficulties with vertical take-off and landing (VTOL) aircraft is that they invariably don’t have high speed as one of their attributes. The principles are well ...

At the very crux of engineering is the desire to problem-solve, optimize, and squeeze out every bit of efficiency possible from the system being built. Aircraft design and aeronautical engineering ...

Here’s What You Need To Remember: The new aircraft will employ several measures designed to make it quieter, including, most notably, a counter-rotating rotor that muffles the sound of the first. The ...

Slicing the air as they haul the Airbus Military A400M into flight, the 5.3m (17.5ft)-diameter counter-rotating propellers of the Europrop International TP400-D6 - the West's most powerful turboprop ...