Replies to This Discussion

Permalink Reply by John Austin on Friday

Just speaking from personal experience, I would say the answer is "yes" to both your questions.  I have a Sensenich carbon fiber spinner (and prop) and the backplate is also carbon fiber and bolts between the engine's prop flange and the prop hub without damage.  My spinner backplate also has oversize holes (oversize for the prop bolts) to accommodate the aluminum drive bushings that are inserted from behind the engine's prop flange, through the backplate and insert into the prop hub, keeping everything aligned and centered.

I have found Sensenich very helpful with support (however, all discussions were with all-Sensenich components).  In the past, they have supplied me with a custom prop spacer and over-length prop bushing material that I could cut-down to the proper length since I needed slightly longer bushings with the spacer - and at very reasonable prices, I might add!  The Sensenich plant in Florida is the one to contact for both the wood and composite props and composite spinners and support.  Don Rowell is the manager there and also provides technical support.

John

N750A

• ▶ Reply

Permalink Reply by Brad Kunkel on Friday

Thanks, John.  Good information.  This morning, I saw a video of someone mounting a carbon fiber spinner like mine on a Sensenich prop hub and spacer with the bushings.  So between your description and that video I now see how that works.  In my case, I'll probably drill new holes to the diameter of the bolts or use hard grommets to center the existing holes since there wouldn't be any way to use bushings on the hub I have. 

It's good to know I can bolt it down.  I'll use big washers to spread the bolt load.

Brad

• ▶ Reply