Bam marines prop slip calculations aren't right
#1
Guest
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Bam marines prop slip calculations aren't right
Anyone notice that Bam marine's website has the wrong prop slip formula? And their calculator is wrong if you plug in your actual speed and hit the calculate button under slip.
I don't know if it's always been like that or something got screwed up. But I started playing with the numbers and noticed it. Both the formula and the calculator will give you higher slip readings than what you actually have.
I don't know if it's always been like that or something got screwed up. But I started playing with the numbers and noticed it. Both the formula and the calculator will give you higher slip readings than what you actually have.
Last edited by blackhawk; 08-26-2004 at 07:43 PM. Reason: spelling
#3
Guest
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Re: Bam marines prop slip calculations aren't right
LOL
No, I'm saying the actual numbers don't add up. According to my math it should be theo sp - actual sp divided by theo sp(not actual sp) to give you prop slip. Their calculator figures it that way too.
No, I'm saying the actual numbers don't add up. According to my math it should be theo sp - actual sp divided by theo sp(not actual sp) to give you prop slip. Their calculator figures it that way too.
#4
Offshoreonly Advertiser
Offshoreonly Advertiser
Re: Bam marines prop slip calculations aren't right
Yep, it is wrong, turns out to be a couple of percent. It's still useful, as the actual hard number is not as important as the ability to plug in the changes. I have been meaning to fix it, so this might be a good time.
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Marc
www.mercruiserparts.com
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Marc
www.mercruiserparts.com
www.go-fast.com
www.bammarine.com
www.cyborgtransmissions.com
It's not alive -www.BoatStuffExpress.com - temporarily retired
#6
Offshoreonly Advertiser
Offshoreonly Advertiser
Re: Bam marines prop slip calculations aren't right
Should be fixed, boy I am much better at this web stuff then when I first built the site.
Please try it and let me know
Thanks for the heads up
Please try it and let me know
Thanks for the heads up
__________________
Marc
www.mercruiserparts.com
www.go-fast.com
www.bammarine.com
www.cyborgtransmissions.com
It's not alive -www.BoatStuffExpress.com - temporarily retired
Marc
www.mercruiserparts.com
www.go-fast.com
www.bammarine.com
www.cyborgtransmissions.com
It's not alive -www.BoatStuffExpress.com - temporarily retired
#7
Guest
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Re: Bam marines prop slip calculations aren't right
Originally Posted by IceAngel
To get your slip number take actual speed divided by theoretical speed
So, if your theo sp was 92 and actual speed was 76 you would subtract 76 from 92 and get 16. Now divide 16 by 92 and you get .1739 or 17.39%.
Mbam, thanks for confirming I drove myself nuts for a few minutes until I figured it out!