Robby:

I know you are familiar with GA planes, remembering we have flown from the same field in years (many) past.

An engine out in a light plane. The second thing you do, after first being sure you have airspeed, is to stop the prop from windmilling if it has not already done so. Why? Because the windmilling prop has much more drag, and greater aerodynamic effect on the plane than a prop not turning.

BUT (And here's the but) our little engines NEVER windmill, they stop. And then the only effect the prop has on the flight of the plane is a very slight tendency to roll right - the opposite of the normal running engine's torque effect.

And congratulations of saving the plane when you ran out of fuel, but running out after landing is cheating.

Bill.