Kiwi Props - Archive-Prop-shaft-thruster-rudder-keel-hull-bot paint - Archive - Catalina 42 Discussion Forum - Message Board - Yuku

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Kiwi Props

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chrisgarraway	Kiwi Props		Lead	[-]
Posts: 37 04/26/06 10:46:10	Tags : None Want to fit one of these folders to my MK1. Question : what is the propshaft size? book say 1 and a quarter inches --- thats pre historic in Europe where we are all metric. What would this be converted to English inches and then to millimeters. Alaso what is the best prop diameter for the MKI with the 44HP yanmar?
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CaptNorm42	Re: Kiwi Props	#1	[url]	[-]
Posts: 680 04/26/06 11:44:04 Moderator	You're right, 1.25 inch diameter shaft. Since the boat is made in USA, they use inches. A conversion I did shows 1.25 inch = 31.75 millimeter. Not sure about the 44HP, but on my 50HP the boat originally had 19" (pretty sure), I upgraded to 20" Martec 3-blade feathering. There were a few messages about the Kiwi props, see: p209.ezboard.com/fcatalina42discussionforumfrm2.showMessage?topicID=1026.topic ~~~~_/)~~~~ Norm Perron, Hull #600/2 cabin, Aphrodisiac, Marina del Rey, CA
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lakandjc	Kiwi Props	#2	[url]	[-]
Posts: 151 04/26/06 18:33:41	Chris: On my 50hp Mk I, I had a stock fixed 3 blade, 18x13. Switched to a Flex-o-Fold from Finland (I think). It's a 3 blade folder, 18x14 and has been great - gained speed both under power and sail. On any special prop, consider the additional cost of the proprietary zincs. James #450 Mk I White Star Puerto Vallarta, Mexico
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peter	same	#3	[url]	[-]
Posts: 313 04/27/06 04:07:07	FYI 44 and 50 hp Yanmar are the same. The diff is that the 44 uses cylinder jacket for a rebuild. They decided that the engines are so good and rarely needed rebuilding so no more jacket and a wee bit bigger cylinder + 50 hp
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countferrari	Prop talk	#4	[url]	[-]
Posts: 103 05/05/06 08:59:01	My Mk1 with the 50hp Yanmar has a 19" AutoStream sold by Martec. I get 7+k at 2700 RPM and can go a bit over 8 at Wide Open Throttle. Reverse is excellent if a good drift to port on start up in reverse. The feathering seems to work as I sail well in all winds and race a small bit. The action on the feathering was very smooth on haulout. S/V Jah Mon,1994, Mark I,Hull #428,Two Cabin,Fin Keel,Anacortes, WA,Puget Sound PHRF 122
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