In article ,
Kyler Laird wrote:

"Roger Long" om writes:

While walking to my plane,
I noticed that all the props were at the same angle. It looked like someone
had gone out and arranged them.

This *is* done sometimes, isn't it? It's something I've suspected but never
investigated.

The reason I suspect it is that I think that I've noticed my props having
been turned after an FBO has moved it. I assumed that they want the props
near horizontal for towing. That would be especially true for a single
(tractor) engine plane.

--kyler

Many line service departments have a trick of turning the props vertical
(or horizontal, take your pick) after they fuel the plane. It makes it
easy to look down a line of tied-down planes and see if any need to get
topped off. This works well in a situation where there are standing
orders to refuel automatically, which would often be the case at a
flight school or club.