3-bladed props for OS160FX

[David Lockhart]

I've not run any of the Bolly props recently.

However, Dave Funk was flying a 16-11 3b Bolly on his OS140 powered Giles 202 and tried an APC 15.75-11 3b on the same day.  My recollection was that the APC was slightly more load, quieter on the ground, quieter in the air, had similar downlines and horizontals, but pulled much better going vertical.  I don't believe the Bolly ever went back on the plane.

Stork - you out there?  Is my recollection correct?

Regards,

Dave Lockhart
DaveL322 at comcast.net

  ----- Original Message ----- 
  From: Earl Haury 
  To: discussion at nsrca.org 
  Sent: Monday, November 15, 2004 6:28 PM
  Subject: Re: 3-bladed props for OS160FX


  Generally the pitch of a Bolly prop performs as though it's 2 "pitches" less than the same number APC. A 16x12 Bolly is roughly equivalent to a 16x10 APC for example. Also, the Mezlik props are the opposite - a 16x12 Mezlik is roughly equal to a 16x14 APC. Worth considering when buying high dollar props.

  Earl
    ----- Original Message ----- 
    From: Wayne Galligan 
    To: discussion at nsrca.org 
    Sent: Monday, November 15, 2004 5:07 PM
    Subject: Re: 3-bladed props for OS160FX


    I have one of those too and have yet to give it a try.  It may be awhile so if I remember I'll report back on it.

    WG

      ----- Original Message ----- 
      From: randy10926 at comcast.net 
      To: discussion at nsrca.org 
      Sent: Monday, November 15, 2004 4:57 PM
      Subject: Re: 3-bladed props for OS160FX


      Would the bolly 16X10 3 blade be enough prop?

      Randy

        -------------- Original message -------------- 

        Randy,

        Bob P. has an OS 1.60 he runs the APC 15.75x13.... I think it might even be a depitched prop of Dave Lockharts.  I sent him a Bolly 16x12 to use for comparison and am awaiting his test results.  
        I tried the Bolly  on my OS 1.40 vs. a 16x11 GSW c.f. prop I have and the GSW prop was quieter and a had better braking. 

        Wayne G.

          ----- Original Message ----- 
          From: randy10926 at comcast.net 
          To: discussion at nsrca.org @nsrca. 
          Sent: Monday, November 15, 2004 3:41 PM
          Subject: 3-bladed props for OS160FX


          So what 3 bladed prop would you use on an OS160FX?  

          Any reason to think a bolly carbon prop is better than an APC on this engine?

          Randy
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