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#11
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Yes, they ROCK for skiing. I want one too someday (in my spare time).
I'd say a 21 pitch high five would be my call, based on your needs and package. -W "Tony Thomas" wrote in message news:8C80d.143998$9d6.54903@attbi_s54... The high five is a very good prop but most people don't want to spend the money for one. Should work great. -- Tony my boats at http://t.thomas.home.mchsi.com "Steve" wrote in message ... Do any of you have any experience with the Mercury High Five props? Steve wrote in message ... I'm looking for help in selecting a new prop. I'm currently running a 14 1/4x 23p 3 blade that came on the boat from the factory. The boat is a 2003 Larson SEI 190 (open bow runabout) with a 4.3 volvo sx sterndrive. It will turn this prop 4600 rpms (4200-4600 reccomended by volvo at WOT) and 49 mph according to speedometer at WOT. This summer we have started doing alot of slalom skiing. Needless to say it is a bit lacking on power to pull up a 200# plus skier . I have been looking at 4 and 5 blade props but am at a loss as to what size should work best for me. Also is there a big trade off for power to loss of top end? I need something that will be a good all around prop as we do alot of tubing and wakeboarding as well as just cruising around the lake. I do not have a local dealer that will let me try out different sizes. I'm not afraid to spend some $ on a good prop, but dont want to experiment with sizes at the prices of these props. Thanks for any help Steve |
#12
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On Fri, 10 Sep 2004 03:02:03 GMT, "Tony Thomas"
wrote: You are exactly right. Dropping to a 21 will increase rpms by about 300 and drop your speed. You would have to increase rpms by 500 to maintain the same speed w/ a 2" drop in pitch. However, something does not add up based on the numbers. 23 x 5400 / 1056 / 1.86 = 63 mph. That means you have a 60% efficiency. Even if you had a 2:1 gearcase you still have a theoritical speed of 58 mph which gives a 65% efficiency. You 'da man!!!! I never thought of the gear case. I'll let him know. Take care. Tom "The beatings will stop when morale improves." E. Teach, 1717 |
#13
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![]() "Clams Canino" wrote in message news ![]() Yes, they ROCK for skiing. I want one too someday (in my spare time). I'd say a 21 pitch high five would be my call, based on your needs and package. -W Canino, I'm still waiting on your response to my question. Did you miss it...should I repost it? Let me know... -- -Netsock "It's just about going fast...that's all..." http://home.columbus.rr.com/ckg/ |
#14
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"Netsock" wrote in message ...
"Clams Canino" wrote in message news ![]() Yes, they ROCK for skiing. I want one too someday (in my spare time). I'd say a 21 pitch high five would be my call, based on your needs and package. -W Canino, I'm still waiting on your response to my question. Did you miss it...should I repost it? Let me know... the high 5 will get your boat on the plane in a heartbeat. you will take a speed hit more then a 3 bladed prop due to the extra blade area, but for out of the hole performance you really cant beat em. |
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