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
Bolt action bolt's housing. With the new design came a new dry-fire method; instead of the bolt being turned up slightly, the action is locked back to catch the firing pin. Another distinct type of popular straight-pull design used in biathlon events is the "lateral toggle"-type straight-pull action, which used a hinged linkage to cycle the bolt. The advantage of such action design is that the same bolt movements can be achieved with significantly reduced range of movement by the user's hand. The two earliest companies who have made the lateral toggle are Finn biathlon, as well as Izhmash. Finn was the