Finalizing prop and spinner install. The spinner backplate mounting flange goes aft of the prop flange and I’m touching the cowl. The easiest fix would be a spacer of 1/8 to 1/4” between the crank flange and the spinner backplate. The drive bushings on the crank are nominally 1/2”. The spinner backplate eats up some of that. Question is….and can’t find this answer….is there a minimum depth that the drive bushings need to go into a wooden prop? Is 1/4” adequate? I will need to machine a spacer or find a different spinner or work some other fix….
-
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.
Wooden Prop Drive Bushing
- Thread starter takair
- Start date
