Pintle exotic metal alloys. For World War II aircraft with sideways-retracting main gear units, carefully set-up "pintle angles" for such axes of rotation during retraction and extension allowed the maingear struts to be raked forward while fully extended for touchdown and better ground handling, while permitting retraction into rearwards-angled landing gear wells in their wings to usually clear the forward wing spar for stowing while in flight. Pintle A pintle is a pin or bolt, usually inserted into a gudgeon, which is used as part of a pivot or hinge. Other applications include pintle and lunette ring for towing, and pintle
The Crooked Hinge The Crooked Hinge The Crooked Hinge is a mystery novel (1938) by detective novelist John Dickson Carr. It combines a seemingly impossible throat-slashing with elements of witchcraft, an automaton modelled on Maelzel's Chess Player, and the story of the Tichborne Claimant. It was dedicated to fellow author Dorothy Sayers "in friendship and esteem." In a poll of 17 detective story writers and reviewers, this novel was voted as the fourth best locked room mystery of all time. "The Hollow Man" also by John Dickson Carr was voted the best. In his ninth outing, Dr. Fell spends July 1937 at a