Date: February 19, 2016 Category: Blog Tags: aircraft propeller, airplane propeller, aviation technology, fixed-pitch propeller, variable pitch propellers. In earlier posts weâve covered how different types of propellers â such as fixed pitch propellers and variable pitch propellers â operate. But today weâre going to break down the differences in a single post. As the names imply, the core difference between the two prop designs involves the orientation of the blades relative to the propeller hub. Pitch affects the way a propeller blade will slice through the air. A low (fine) pitch positions the blade of the propeller in a slightly more vertical position from ground level.
T. J. Miller plays as Robbie Valentino. Frank Welker voices Gompers, a goat who lives in the forest of Gravity Falls. Voice acting veteran John DiMaggio plays Manly Dan, a strong lumberjack and father of Wendy. Niki Yang and Carl Faruolo play Candy Chiu and Grenda, Mabel's two best friends, respectively. Toby Determined, a journalist for Gravity Falls' Gossiper, is voiced by Gregg Turkington, and Will Forte plays Tyler Cutebiker. J. K. Simmons joins the cast as of season 2, episode 12, A Tale of Two Stans, and plays Stan's twin brother, Stanford Fillbrick Ford Pines.
Recurring characters. 1  Stanford Filbrick Ford Pines, Ph. 2  Candy Chiu and Grenda (voiced by Niki Yang and Carl Faruolo respectively) - Mabel's best friends whom she first met at a party hosted by the Mystery Shack. 3  Fiddleford Hadron Old Man McGucket (voiced by Alex Hirsch) - The local kook of Gravity Falls.