What makes a prop a "Bowlifter"

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,087
Some props are designated as "Bowlifters" some as "Sternlifters". What about the prop's design causes this?
 

realmasa

Petty Officer 2nd Class
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Aug 26, 2005
Messages
158
Re: What makes a prop a

Re: What makes a prop a

I think higher rake provides some bow lift but cupping is the major property for lift. It is how the cup is added that decides how it will lift the stern, bow or both.
 

walleyehed

Admiral
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Jun 29, 2003
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6,767
Re: What makes a prop a

Re: What makes a prop a

Higher Rake with Parabolic design is the best Bowlifter.
This gets somewhat complicated when trying to describe it. A Turbo Lightning, OMC/BRP Raker, Mazco's, Solas Scorpion, etc, all have Parabolic Rake. The Turbo TXP has Parabolic Rake but the Skew of the blades are different and it changes the lift abilities, or where it lifts best.
 

Chris1956

Supreme Mariner
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Mar 25, 2004
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28,087
Re: What makes a prop a

Re: What makes a prop a

Thanks for the explanation. Is the Rapture a bowlifter? I know it has rake, but is it the right kind?
 

walleyehed

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Jun 29, 2003
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6,767
Re: What makes a prop a

Re: What makes a prop a

In my testing, the Rapture has shown to be a moderate bow-lifter, probably fits in the class of over-all lift. with "some" bow-lift.
 

scsims

Cadet
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Jul 9, 2003
Messages
28
Re: What makes a prop a

Re: What makes a prop a

Kenny, have you tried the Apollo yet?
 

walleyehed

Admiral
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Jun 29, 2003
Messages
6,767
Re: What makes a prop a

Re: What makes a prop a

Yes, I have...I've ran the Large 15-1/4X19 3-bld.
I hope to get the smaller 14-1/8 3-bld and an 18P 4-bld run sometime shortly....
When I get all tested, I'll post my findings.
 

scsims

Cadet
Joined
Jul 9, 2003
Messages
28
Re: What makes a prop a

Re: What makes a prop a

I will be trying out a 13x21P this weekend, this time I'm using the Flo-Torq II instead of the XHS hub, I'm hope this runs better than the Rapture did.
 

bryancx94

Seaman Apprentice
Joined
May 22, 2006
Messages
43
Re: What makes a prop a

Re: What makes a prop a

When you talk about bowlifter or sternlifter is this determined when fully on plane, or is this from a holeshot?
 

walleyehed

Admiral
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Jun 29, 2003
Messages
6,767
Re: What makes a prop a

Re: What makes a prop a

This would be on plane, but the effects start to a small extent in hole-shot...
 
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