Got some New abc props of interest in today

[kfxguy]

Got a couple new release props in today. One very popular prop is the 1815, well and 1814 has been released with the same rake and blade area. Good for the setups with not quite enough power to turn the 1815. Then I got an 1814 three blade. 15 degree rake with a tad more blade area. I don't even know of a 45mm three blade so this one may fill a gap. It looks like it means business.

[Brushless55]

Looking forward to the results of the 3 blade Travis

[srislash]

PropShop has a 4514/3. I run it on the Pursuit, runs real well but now I may have something new to try.

[dasboata]

if a 1815 is 2 big the,,,, 1814/3 will be just as big because of it's 3rd blade the 3 blade props do have the advantages,, but your amps and load will go up ! best to reduce the 1815 and make that work then go to a 3 blade ! I do happen to like 3 blades better on a mono,, Keith does runs them with much success on his cats !

[kfxguy]

if a 1815 is 2 big the,,,, 1814/3 will be just as big because of it's 3rd blade the 3 blade props do have the advantages,, but your amps and load will go up ! best to reduce the 1815 and make that work then go to a 3 blade ! I do happen to like 3 blades better on a mono,, Keith does runs them with much success on his cats !

I'm not quite sure what you mean by your post but it seems to me like your saying that I was implying that the three blade 1814 will be less? You may want to read the first post again. There is a TWO blade 1814 in the pic and what I was referring to.

[dmitry100]

dasboata: Any particular differences between 2 and 3 blade props? Especially on a cat...

[Brushless55]

if a 1815 is 2 big the,,,, 1814/3 will be just as big because of it's 3rd blade the 3 blade props do have the advantages,, but your amps and load will go up ! best to reduce the 1815 and make that work then go to a 3 blade ! I do happen to like 3 blades better on a mono,, Keith does runs them with much success on his cats !

I try an run only 3 blade props on my Monos because they cause mine to handle so well
love to find a 1515/3 blade
need to try different ones on my Lucas Oil P Limited Cat next

[kfxguy]

I try an run only 3 blade props on my Monos because they cause mine to handle so well
love to find a 1515/3 blade
need to try different ones on my Lucas Oil P Limited Cat next

There is 1516-10-50(3)and a 1514-10-75(3) and a 1614-10-50(3)

[dasboata]

I'm not quite sure what you mean by your post but it seems to me like your saying that I was implying that the three blade 1814 will be less? You may want to read the first post again. There is a TWO blade 1814 in the pic and what I was referring to.

Yes thats what I thought you were saying I did not realize the 2 blade was a 1814 ? my mistake Travis

[dasboata]

dasboata: Any particular differences between 2 and 3 blade props? Especially on a cat...

only the obvious,,, my personal preference is 2 blades on cats and 3 blades on monos but you can use them both on both !!

[dasboata]

I try an run only 3 blade props on my Monos because they cause mine to handle so well
love to find a 1515/3 blade
need to try different ones on my Lucas Oil P Limited Cat next

I have 1614/3 and 1514/3 I can mod up ?

[Brushless55]

There is 1516-10-50(3)and a 1514-10-75(3) and a 1614-10-50(3)

I have 1614/3 and 1514/3 I can mod up ?

Ok, educate me a little on these new 14 props
what do I loose or gain from the 1615 and 1715 props I have now ?

thanks

[dasboata]

Please PM me This is not my thread !! I can make the 1614 run just as good as the 1515 I was just offering you a alternative !

[kfxguy]

Please PM me This is not my thread !! I can make the 1614 run just as good as the 1515 I was just offering you a alternative !

This is a public forum. We are all here to help each other (well at least some of us are) so I'm worried about being selfish with a thread I created. As long as my fellow members are being helped, that all I'm worried about.

[Brushless55]

Agreed as you are both very helpful on this subject
I was wondering the difference between the 14 and 15 props
1614 vs 1615 example

[kfxguy]

1614 has 1.4 pitch ratio. 1615 has 1.5 pitch ratio. Now. If one is a 15 degree take and the other is a 17 degree rake, well that changes it a little more as far as lift goes.

[dmitry100]

The more rake the more lift, right...

Brushless: (scroll down to text) https://forums.offshoreelectrics.com/...chmentid=88524

[srislash]

The more rake the more lift, right...

Brushless: (scroll down to text) https://forums.offshoreelectrics.com/...chmentid=88524

I think the more rake the more the prop 'bites' into the water causing the transom to hunker down or the bow to get light.

[dmitry100]

Yep :) http://www.mercuryracing.com/prop-sc...-3-blade-rake/

srislash: How do you normally know how much prop to cut down/reduce? I'm testing higher RPM on my tp's with some not so great results so I was thinking to cut down a pair of CNC 448's (to 444 and then to 442)

People keep talking about their "rated efficiency"... what does that pertain to? they're not really efficient at high rpm though right...

[Brushless55]

1614 has 1.4 pitch ratio. 1615 has 1.5 pitch ratio. Now. If one is a 15 degree take and the other is a 17 degree rake, well that changes it a little more as far as lift goes.

So these 14 props have the same rake as the 15 ?
I like the way my 15 props run on my monos
reason for the question

[kfxguy]

So these 14 props have the same rake as the 15 ?
I like the way my 15 props run on my monos
reason for the question

Yes. But you have to be careful. There is a 1914-10-50 and it's not the same as a 1914-17-45. You must pay attention to all the numbers. There's not many 14 pitch series out just yet. I just checked the ose store and so far I didn't see any of the new stuff yet. I think he's supposed to be getting a shipment very soon with some new numbers. The 48mm 3 blade that is comparable to a 447/3 isn't done yet either. I've got one coming to me as soon as it is. Along with a couple other things.

[dmitry100]

kfxguy: Any reason to go with a higher BAR prop like .6 versus a .45 ?

[kfxguy]

kfxguy: Any reason to go with a higher BAR prop like .6 versus a .45 ?

Well the theory is it has more tongue and they should bite better off the start, but I haven't experienced any difference except overall they are slower. That's just a general statement without going in depth. I did have a 1914-10-50 do quite well on my mono however. I guess it all depends on the hull. I know an 1815 and 1915 bite well on take off with a car but they slip pretty bad on a mono. The further back the prop is away from the transom on a mono it does help. I'm expecting the three blades to help that though. I need to get some time to work these props and get to testing. Right now I'm in build mode and haven't run anything for a few weeks. I will let you know what I find, I did get a few others I didn't post about.