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
Syntactic pivot Syntactic pivot The syntactic pivot is the verb argument around which sentences "revolve" in a given language. This usually means the following: The first two characteristics have to do with simple morphosyntax, and from them, it is quite obvious the syntactic pivot in English (and most other European languages) is called the subject. An English verb cannot lack a subject (even in the imperative mood, the subject is implied to be "you" and is not ambiguous or unspecified) and cannot have just a direct object and no subject; and (at least in the present tense, and for the verb "to