• The Biplane Forum is a large global active community of biplane builders, owners and pilots. From Pitts to Skybolts, to older barnstormers, all types are welcome. In addition to our active community, our content boasts exhaustive technical information which is often sought after for projects and maintenance. This information has accumulated over the 12+ years the forum has been in existence.

    The Biplane Forum is a private community. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched source of information not found anywhere else on the web. We are also a great resource for non biplane users, since many GA aircraft are built the same way (fabric and tube construction). Annual membership also comes with two BiplaneForum.com decals.

Reconditioned Sensenich 76EM-8-62 Metal propeller (for S1S 180hp) FOR SALE


Well-Known Member
Supporting Member
Feb 25, 2019
Reaction score
Boulder, Colorado
Hi Folks. Here's the metal prop, reconditioned and painted black with red tips off of Gary Debaun's Pitts S1S 180hp (PS5-C pressure carb). Was overhauled and comes with yellowtags following a little trip through the tulips and subsequent professional prop shop treatment. Blade tracking less than 1/8" when I checked it at the tips.

I wanted a light prop so I got a composite prop spec'd and built by Nick Cain and Sensenich. Stay tuned to Acrobum here on the forums and elsewhere for info on how it performs.

My motivations for getting rid of this prop are my desire for a smoother 4-cylinder and two blade prop combination that avoids certain harmonic ranges inherent to this 76" prop on the Pitts S1S O-360 platform.

I also wanted a lighter prop because I have a flange with holes in it.

Asking $1950 OBO plus shipping. Currently packaged up nicely in the same box my new 76" aerobatic composite prop came in right from Sensenich. Includes mounting bolts and drive lugs for 1/2" diameter bolts.

This one is on the higher side of pitch for an S1S but I was nonetheless pleased with its performance and I saw 2925 rpm flat out at 7,500' out here in Colorado on a Summer morning. True airspeed low 170mph true at 2925.

Don't want to store this as I've changed the drive lugs and there's no going back. I would like to burn the money as fuel as quickly as possible while someone who needs a metal prop for performance or CG reasons enjoys this prop.

Thanks for looking,


Last edited:

Latest posts