[NSRCA-discussion] what propeller for an ys 140 sport ?

[Gary McClellan]

Buddy
When the sport came out I did not think it would be enough for masters/F3A. Mike Dunphy had some experience with the sport and indicated it would power our pattern planes. 
I am using the AAP stainless header with a brace and the ES 140 pipe. The fuel depends on temp and altitude. Magnum #1 near sea level and cool temps. #3 in the hot summer months.
Engine rpm is between 7500 and 7700 depending on fuel and conditions.
Fuel consumption is 8 to 9 oz for P07.
Virtually no maintenance on either of the 2 sports that I have in the last 2 years.
Overall I am very happy with the 140 sport engine.

Gary McClellan
  ----- Original Message ----- 
  From: BUDDYonRC at aol.com 
  To: nsrca-discussion at lists.nsrca.org 
  Sent: Tuesday, September 04, 2007 3:38 PM
  Subject: Re: [NSRCA-discussion] what propeller for an ys 140 sport ?


  Wow Gary
  You have a YS-140 Sport running an 18.1x 10.1 that must be a super strong Sport
  I have been running an APC 16 x 11 on my YS-140 Sport with #2 Magnum fuel for the last couple of years with good results RPM between 8400 &8800 plenty of power, airplane is a 10-3/4 pound Impact I sometimes run the APC-17x10N but RPM drops to about 8200 The YS engines like to turn and the 17x10 will load the engine to much sometimes if the conditions and settings are not perfect.
  Buddy





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