Originally Posted by
Ed G
One thing I want to strongly emphazise for the readers out there is this prop clearance issue.
Al, no offense, but your photo does not show the proper clearance between the prop and trailer and we surely don't want anyone doing it the wrong way.
One needs to measure the thickness of the bar running horizontally (port to starboard) under the rudder. The one that is welded on top of the vertical bar (forward to aft) that runs under the prop (as shown in photo).
One needs to find something the same thickness of that horizontal bar (3/8" thick piece of wood molding, in my case) and then place that inbetween the prop and that vertically running bar. Rotate the the prop until one of the blades is at it's closest point to the "shim". This usually ends up having one of the prop blade back edges being a few degrees off of a vertical position.
This will show the actual clearance between prop and trailer.
Unfortunately, Our test speeds don't match (yours is 1 mph faster), but since I've already started my testing and want to keep all tests identical, that's just the way it is going to be for the OBV. I don't think 1 mph is a big deal
Next week we can run the tests on the LSV and the XLV at the same speed as you did.