• Become a Subscribing Member today!

    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.

    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.

    Why become a Subscribing Member?

    • 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.
    • 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.

    Become a Subscribing Member and access the Biplane Forum in full!

    Subscribe Now

Ranger Engine Propeller ID help

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Lotahp1

Well-Known Member
Supporting Member
Joined
May 18, 2012
Messages
4,260
Reaction score
949
I keep seeing this old USAAC add and it clearly shows a PT-19 with a Ranger but what has me stumped is the propeller. It has what looks to be a ground adjustable Steel McCaully kind of like what was used on some Stearmans. But a ground adjustable is not on any TCDS I can find for PTs or Widgeons. It has the wrong looking blades to be an Aeromatic and is missing the counter weights Aeromatics have. ImageUploadedByBiplane Forum1445032240.539188.jpg
 

Latest posts

Back
Top