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Kiekhaefer Awarded Patent On New Variable Propeller Pitch Surface Drive

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Kiekhaefer Awarded Patent On New Variable Propeller Pitch Surface Drive

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Old 01-15-2018, 10:19 AM
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Default Kiekhaefer Awarded Patent On New Variable Propeller Pitch Surface Drive

Truly innovative on many levels, this product could be a game-changer, https://speedonthewater.com/new-boat...-surface-drive.

Look for a comprehensive feature in the January/February issue of Speed On The Water digital magazine.
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Old 01-15-2018, 11:17 AM
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wow !
went to k lab website news and updates, has a few more pics
will it be at the miami show ?
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Old 01-15-2018, 11:21 AM
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WOW is all I can say. Truly a unique piece.
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Old 01-15-2018, 11:53 AM
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I'd like to be the first to offer the use of my boat as a testing platform when he's ready to test them behind gasoline motors.
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Old 01-15-2018, 11:59 AM
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Originally Posted by outonsafari
wow !
went to k lab website news and updates, has a few more pics
will it be at the miami show ?
Testing starts in two to three weeks, if all goes to plan, so it won't be in the Miami Show.
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Old 01-15-2018, 12:35 PM
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Great idea, interested to hear how the testing goes. I am surprised nobody has tried this before, airplanes have had this feature forever.

I wonder if he has thought about doing this as duo prop drive also.

Maybe he would like a twin engine diesel test boat?? I wonder how much faster my boat would be with surface drives?

Last edited by pstorti; 01-15-2018 at 12:42 PM.
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Old 01-15-2018, 12:45 PM
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Originally Posted by pstorti
Great idea, interested to hear how the testing goes. I am surprised nobody has tried this before, airplanes have had this feature forever.

I wonder if he has thought about doing this as duo prop drive also.

Maybe he would like a twin engine diesel test boat?? I wonder how much faster my boat would be with surface drives?
It has already been done in the UK by a company named yellowfin. they have a video of it running in the water.
very surprised he got a patent of their drive
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Old 01-15-2018, 12:47 PM
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Could be a huge game changer.... Does it use its own transom assembly or bolt up where the helmet goes on a typical drive? Wonder if it would be allowed in racing or if it would create its own class? Good for Kiekhaefer!
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Old 01-15-2018, 01:38 PM
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the basic idea was in the market place from the 1990's for the mechanical versions called shifting props. They used the marketing words as comparing to a transmission that shifts but the prop blades shifts ( changes it pitch )

Land & Sea, also Aero Star and Merc had their versions way back then. I still have the Aero Star version. These were mainly marketed to the Rec boat user way back then..

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Old 01-15-2018, 01:43 PM
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land & Sea - yes the company whom makes dyno's and use to sell the sternjack
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