SuperCubRick
Well-Known Member
My instrument instructor stumped me today by asking which way the ball was deflected during a spin to the left.
I quickly said "to the right, as that's where the centrifugal force should be moving it" - but he said, well not really it depends on where it's mounted on the panel.
He said that because it's mounted to the left of the airplanes center line, that's where the ball will fall in a spin to the left - and if it were mounted right of the centerline it would fall to the right in a left spin.
I looked it up online and William Kershner says the same thing as my instructor, in a page in his Flight Instructors Manual.
I'm trying to visualize the forces acting on the plane during the spin and trying to figure out why the placement of the turn coordinator would matter - as they're both in the same plane of rotation, pitch, and bank angle, subjected to identical lateral G loads during the spin - why would there be a discrepancy between the two!?
TGrayson, help me out!
I quickly said "to the right, as that's where the centrifugal force should be moving it" - but he said, well not really it depends on where it's mounted on the panel.
He said that because it's mounted to the left of the airplanes center line, that's where the ball will fall in a spin to the left - and if it were mounted right of the centerline it would fall to the right in a left spin.
I looked it up online and William Kershner says the same thing as my instructor, in a page in his Flight Instructors Manual.
I'm trying to visualize the forces acting on the plane during the spin and trying to figure out why the placement of the turn coordinator would matter - as they're both in the same plane of rotation, pitch, and bank angle, subjected to identical lateral G loads during the spin - why would there be a discrepancy between the two!?
TGrayson, help me out!