• 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.



M14 radial power settings what do you guys use

Advertise with us
Shop deals on ebay
shop deals on amazon
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
pigpenracing

pigpenracing

Well-Known Member
*
Joined
Dec 17, 2009
Messages
2,341
Reaction score
670
Just curious if the guys here that fly the M14 engines use the power settings from the chart are something different? I played around today and backed it down more than usual and it actually picked up some cruise mph and GPH went way down. I guess the prop got more bite? I talked to a guy that has a Murphy Moose and he used some totally different numbers. Larry King also gave me the numbers he seems to use. Here is what I have.... What do you guys see works best?

Larry King numbers
Hard core acro or airshow 2900 rpm and full power
cruise 28" 2000rpm
playing around acro 30" 2400 rpm

Numbers by the book
Takeoff 34" 2900 rpm 39gph
Acro 33" 2400 rpm 32gph
Norm II 32" 2050 rpm 25gph
Cruise I 29" 1860 rpm 15gph
Cruise II 26" 1730 rpm 12gph
 
You must log in or register to reply here.

Latest posts

Back
Top