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Author Topic:   Mercury HIGH FIVE Propeller

onlyawhaler posted 05-19-2010 04:33 PM ET (US)
What is the advantage of the five-blade Mercury High Five propeller? Does it really launch a boat up on plane?
Anyone use one of these with postive results?
Thanks
Onlyawhaler
jamesmylesmcp posted 05-19-2010 06:17 PM ET (US)
The fastest prop I own is a High Five, run way up high on a jackplate behind my 1971 Outrage21.
Plotman posted 05-19-2010 10:13 PM ET (US)
The high-five is a great prop for watersports. Awesome hole shot. Mercury will tell you that you give up a little on the top end. Had one on a boat we used to use for skiing. Would pop my large frame up on a slalom ski, when the same boat with a stock prop made me feel like I was in the submarine service.
sosmerc posted 05-19-2010 11:38 PM ET (US)
I run a 19 Pitch HighFive on my 18ft. Ventura with 200 Merc DFI. I have run other large 3 blades such as the Tempest Plus 21 pitch, and indeed, the 3 blade props are 2 to 3 mph faster on the top end, but they "thump" and vibrate at lower rpms...whereas the HighFive is very smooth throughout the entire rpm range. It's a good over-all sport prop and especially nice for quick acceleration and bottom end hole-shot.
outragesteve posted 05-20-2010 03:47 AM ET (US)
My Montauk 17 with Mercury 115-HP in-line six runs a HighFive 13-inch diameter and 20-inch pitch propeller that gives awesome hole shot and top end around 56-MPH with 5,800-RPM. The engine is on a Gil ModVP 12-inch bracket so it's up about four inches. I can pull-up two skiers without problem and yank out a deep water barefooter. [The Mercury 115-HP] smooth and trolls very well. I can trim the engine without any problem to a point the boat just hangs in flat water. I can't make it loose grip in a turn. Get with your local Mercury dealer and try one. For optimum performance you may need to raise your engine as much as two holes. Have fun!
jimh posted 05-20-2010 09:13 AM ET (US)
[Separated from another discussion and moved to PERFORMANCE.]
dg22 posted 05-20-2010 09:47 AM ET (US)
We used a high-five propeller for skiing. What I remember the most about this prop was it was great in the tight corners -- no cavitation and it would never break loose. The boat we had at the time had a very deep Vee hull and this prop would really hold the boat steady in the tight corners.
andygere posted 05-21-2010 11:23 AM ET (US)
I ran one on my Outrage 22 Cuddy when it still had the Mercury 200 on it. Very good acceleration, and it held in very well in chop, tight turns and generally snotty conditions. It did a good job of holding the boat on plane at low speeds in rough seas. As others have said, that prop never ventilated regardless of conditions.
I would have kept it when I repowered with my E-TEC 200, but it was an older prop that did not have a Flo-Torq hub system so I sold it. I'm now running a 4 blade Mercury Offshore (Vensura) which has similar performance characteristics and manners.
Tom W Clark posted 05-21-2010 12:06 PM ET (US)
This is a good example of how one propeller can work well in one application and not work well in another.
The 19" High Five worked well for Andy on the 200 HP Mercury on his classic 22.
The 19" High Five did not work well on my Mercury 150s on my classic 25. The High Five was easily overpowered and would blow out and ventilated like crazy if trimmed out. Top speed was pretty good though.
The difference? My boat has twins, Andy's and the other's mentioned above are singles. Is that the reason? Who knows?
Oh, in case anybody is wondering if the props on my boat were somehow different from Andy's prop, modified or damaged, one of the two 19" High Five's I was using WAS Andy's prop. He sent it to me so I could test it out.
The only propellers that tested more poorly on my boat were the two pairs of Mercury Offshore (VenSura) four blades I have tried.

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Author	Topic: Mercury HIGH FIVE Propeller
onlyawhaler	posted 05-19-2010 04:33 PM ET (US) What is the advantage of the five-blade Mercury High Five propeller? Does it really launch a boat up on plane? Anyone use one of these with postive results? Thanks Onlyawhaler
jamesmylesmcp	posted 05-19-2010 06:17 PM ET (US) The fastest prop I own is a High Five, run way up high on a jackplate behind my 1971 Outrage21.
Plotman	posted 05-19-2010 10:13 PM ET (US) The high-five is a great prop for watersports. Awesome hole shot. Mercury will tell you that you give up a little on the top end. Had one on a boat we used to use for skiing. Would pop my large frame up on a slalom ski, when the same boat with a stock prop made me feel like I was in the submarine service.
sosmerc	posted 05-19-2010 11:38 PM ET (US) I run a 19 Pitch HighFive on my 18ft. Ventura with 200 Merc DFI. I have run other large 3 blades such as the Tempest Plus 21 pitch, and indeed, the 3 blade props are 2 to 3 mph faster on the top end, but they "thump" and vibrate at lower rpms...whereas the HighFive is very smooth throughout the entire rpm range. It's a good over-all sport prop and especially nice for quick acceleration and bottom end hole-shot.
outragesteve	posted 05-20-2010 03:47 AM ET (US) My Montauk 17 with Mercury 115-HP in-line six runs a HighFive 13-inch diameter and 20-inch pitch propeller that gives awesome hole shot and top end around 56-MPH with 5,800-RPM. The engine is on a Gil ModVP 12-inch bracket so it's up about four inches. I can pull-up two skiers without problem and yank out a deep water barefooter. [The Mercury 115-HP] smooth and trolls very well. I can trim the engine without any problem to a point the boat just hangs in flat water. I can't make it loose grip in a turn. Get with your local Mercury dealer and try one. For optimum performance you may need to raise your engine as much as two holes. Have fun!
jimh	posted 05-20-2010 09:13 AM ET (US) [Separated from another discussion and moved to PERFORMANCE.]
dg22	posted 05-20-2010 09:47 AM ET (US) We used a high-five propeller for skiing. What I remember the most about this prop was it was great in the tight corners -- no cavitation and it would never break loose. The boat we had at the time had a very deep Vee hull and this prop would really hold the boat steady in the tight corners.
andygere	posted 05-21-2010 11:23 AM ET (US) I ran one on my Outrage 22 Cuddy when it still had the Mercury 200 on it. Very good acceleration, and it held in very well in chop, tight turns and generally snotty conditions. It did a good job of holding the boat on plane at low speeds in rough seas. As others have said, that prop never ventilated regardless of conditions. I would have kept it when I repowered with my E-TEC 200, but it was an older prop that did not have a Flo-Torq hub system so I sold it. I'm now running a 4 blade Mercury Offshore (Vensura) which has similar performance characteristics and manners.
Tom W Clark	posted 05-21-2010 12:06 PM ET (US) This is a good example of how one propeller can work well in one application and not work well in another. The 19" High Five worked well for Andy on the 200 HP Mercury on his classic 22. The 19" High Five did not work well on my Mercury 150s on my classic 25. The High Five was easily overpowered and would blow out and ventilated like crazy if trimmed out. Top speed was pretty good though. The difference? My boat has twins, Andy's and the other's mentioned above are singles. Is that the reason? Who knows? Oh, in case anybody is wondering if the props on my boat were somehow different from Andy's prop, modified or damaged, one of the two 19" High Five's I was using WAS Andy's prop. He sent it to me so I could test it out. The only propellers that tested more poorly on my boat were the two pairs of Mercury Offshore (VenSura) four blades I have tried.