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Why this prop?

 
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garyf



Joined: 01 Sep 2015
Posts: 64
City/Region: Lincoln
State or Province: CA
C-Dory Year: 1991
C-Dory Model: 22 Cruiser
Vessel Name: C-Story
Photos: C-Story
PostPosted: Sun Sep 13, 2020 4:56 pm    Post subject: Why this prop? Reply with quote

And... the next subject in trying to crawl inside my dad's mind...

The prop he's got on the boat (and I didn't run across any other spare or extra props in his stuff) is a 3-blade 11p Power Tech SS prop. This is on a 22 cruiser... with a single 4-stroke 90hp Yamaha (2006 - 40 hrs).

Nothing I've read in here suggests an 11p would be an appropriate prop for this boat - but one thing I know about my dad is he didn't do things haphazard, so I'm thinking he probably had some sort of well intentioned reason for choosing 11p. I know he wouldn't necessarily care about high-end speed... I also know he usually used (or intended to use) the boat at higher altitude (Lake Tahoe and Pyramid Lake)... I would THINK he would care about fuel efficiency, but that wouldn't drive him towards an 11p?? I don't know, I'm kind of scratching my head on this one.

One thing for sure - he used the boat 98% for fishing. Could it be he chose 11p so it'd be easier to troll without a separate kicker or trolling motor? Thoughts would be appreciated. I'm guessing a new prop will be in the list somewhere, but again I'd like to understand what he might have been thinking if possible.

Thanks.

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Gary Frerking
C-Story
'91 22 ft Cruiser
'06 Yamaha 90
KC3PO
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Scuppers



Joined: 05 Sep 2020
Posts: 4
City/Region: Knotts Island
State or Province: NC
C-Dory Year: 2011
C-Dory Model: 19 Angler
Vessel Name: Scuppers
PostPosted: Sun Sep 13, 2020 5:15 pm    Post subject: Couild be the right prop. Reply with quote

I recently orderered A 14 X 11 4 blade SS prop for an ETEC pushing a 19 foot anlger. I cannot get over 4400 RPM with the 13.5 x 15P from turning point, they atre letting me do a pitch exchange for $35. Maybe your pop was having a similar issue.
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Wandering Sagebrush



Joined: 21 Jan 2005
Posts: 2705
City/Region: Canby, Oregon
State or Province: OR
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Constant Craving
Photos: Constant Craving
PostPosted: Sun Sep 13, 2020 5:30 pm    Post subject: Reply with quote

Gary, my guess is he wanted the motor to be able to reach recommended RPM at wide open throttle.
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thataway



Joined: 02 Nov 2003
Posts: 18203
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Sun Sep 13, 2020 8:19 pm    Post subject: Reply with quote

Most likely for the high altitude. I tried an 11" both on my C Dory 22 (would have been fine for Yellowstone, but too low a pitch for Powell). And on the C Dory 25--it was an ideal prop for Powell with the Honda 130 (same block as the 115).
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Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
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Home port: Pensacola FL
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garyf



Joined: 01 Sep 2015
Posts: 64
City/Region: Lincoln
State or Province: CA
C-Dory Year: 1991
C-Dory Model: 22 Cruiser
Vessel Name: C-Story
Photos: C-Story
PostPosted: Mon Sep 14, 2020 2:30 am    Post subject: Reply with quote

Thanks all. I've got some testing on the "to-do" list!
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