Search results
Results From The WOW.Com Content Network
Contra-rotating propellers Contra-rotating propellers on the Rolls-Royce Griffon-powered P-51XR Mustang Precious Metal at the 2014 Reno Air Races. Aircraft equipped with contra-rotating propellers (CRP) [1] coaxial contra-rotating propellers, or high-speed propellers, apply the maximum power of usually a single piston engine or turboprop engine to drive a pair of coaxial propellers in contra ...
A professional photographer died in a horrible accident by backing up into an airplane propeller while snapping photos at a Kansas airfield. Amanda Gallagher, 37, was taking photos of people ...
The performance of a propeller suffers when transonic flow first appears on the tips of the blades. As the relative air speed at any section of a propeller is a vector sum of the aircraft speed and the tangential speed due to rotation, the flow over the blade tip will reach transonic speed well before the aircraft does.
In designing the Lockheed P-38 Lightning, the decision was made to reverse the counter-rotation such that the tops of the propeller arcs move outwards (counterclockwise on the left and clockwise on the right), away from each other. Tests on the initial XP-38 prototype demonstrated greater accuracy in gunnery with the unusual configuration.
Around 2.40 p.m. Saturday, Amanda Gallagher, 37, was taking photos at an airfield just outside of Wichita when she hit the plane’s propeller while the aircraft was on the ground, according to ...
A British aircraft carrier that had been set to lead the largest NATO exercises since the Cold War will not set sail Sunday after a problem with its propeller was discovered during final checks ...
Northwest Airlines Flight 292, a DC-7C (N285) with 7 crew and 95 passengers, [29] made a successful water landing in Sitka Sound just before 1 p.m. local time after struggling with propeller problems for 45 minutes [30] while operating as a military charter flight between McChord Air Force Base and Elmendorf Air Force Base. The plane stayed ...
Propeller whirl flutter is a special case of flutter involving the aerodynamic and inertial effects of a rotating propeller and the stiffness of the supporting nacelle structure. Dynamic instability can occur involving pitch and yaw degrees of freedom of the propeller and the engine supports leading to an unstable precession of the propeller. [13]