• 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.



0-290 D Prop on a CB-1

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

sarpysam

Well-Known Member
*
Joined
Aug 18, 2013
Messages
59
Reaction score
6
Guys: I recently completed #932 with a 135 hp 0x290. I started with a Sterba 74x50 but it wouldn’t turn up. Replaced it with a 74x48 metal and it barely made 2500 just shy of 100 mph. Ed repitched the 50 down to 47. It, too, is just short of 2500 but blows through 115 mph. We’re still shy in my way of thinking. There’s a lot of hp in that last 200 rpm and I don’t want to go 115 mph! Ed’ll repitch it again but we’re looking now at confirming the tach reading and I’ll confirm the a/s with a GPS.

What are you guys running out there for props?

Sarpy Sam
 

Latest posts

Back
Top