• 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).

FS: Alternator ALY-8520R 12V


Well-Known Member
Jul 31, 2007
Reaction score
Cleaning out the hangar. 12V Alternator ALY-8520R

304.8 hours since overhaul in 12/2002.

Fits Pitts S2B and perhaps others.

Replacing with B&C 20A lightweight

$250 + $20 shipping (US).

001 (640x477).jpg

004 (640x489).jpg

Latest posts