Prop slip calculator

When calculating slip only consider pitch, not cupping, diameter, or # blades. You do not add pitch for cup when determing slip. Cupping loads the prop more and can reduce slip, but so does adding diameter. % slip depends on vessel type and slip will vary differently throughout the rpm range.

Calculate the propeller slip: Subtract the ship speed from the propeller pitch, divide it by the propeller pitch, and then multiply by 100 to obtain the slip …Prop Slip Calculator; News; Contact Us; Top Bar - Menu 2 Micro. Facebook page opens in new window Twitter page opens in new window $ 0.00 0. View Cart Checkout. ... All Certified Reconditioned propellers and Used propeller sales are final and void of warranty. Click the buttons below to see props by blade count. 3 Blade. 4 Blade. 5 Blade. 6 ...The Mercury Racing Bravo 1 FS Pro Finished propellers are designed for outboard and sterndrive applications. The 4 blades deliver unmatched time-to-plane performance, mid-range punch, delivering fuel sipping economy, and excellent top-end speeds for medium to heavy outboard bass, flats, cat flats, bay boats, center consoles and sterndrive deck ...Prop Slip: This is the relationship between the actual vs. theoretical distance your boat travels with each revolution of the propeller and is impacted by the hull design, weight of your boat, propeller design and other factors. A couple ways to estimate this: 1) use the Mercury Prop Slip Calculator; Don't Miss: Freedom Boat Club Northport.IF 22 is the proper pitch prop with a 2.25 gear ratio and you have a 1.86 gear ratio it's: 22 X 1.86 / 2.25 which works out to about 18. That's very very basic, assuming no change in prop slip, but should be in the ballpark. But again, that's assuming that a 22 pitch prop would be right with the original gear ratio.Propeller Slip Calculator; Contact Us; Search. Contact Us. Thank you for contacting Midwest Boat and Prop! We are Minnesota's largest and most experienced prop shop, centrally located in Sauk Rapids, MN. We are dedicated to providing high-quality propellers and excellent customer service. Please feel free to reach out to us using the contact ...The prop calculator with no slip says I should hit 35Mph at about 5K - if I recall. Took it out with the GPS today to just get some numbers on this. There were a lot of boat wakes so I could only get the trim up to about 50% before I started getting launched. Tach was at 5K give or take 100 and the GPS said that we hit about 41.9mph.

BBLADES propellers prices are subject to change. Any unused / un-opened parts can be returned for a 15% restocking fee within 15 days of shipping from BBLADES. Read BBLADES Terms and Conditions HereSometimes you just need a little extra help doing the math. If you are stuck when it comes to calculating the tip, finding the solution to a college math problem, or figuring out how much stain to buy for the deck, look for a calculator onl...Best Answer. Copy. Slip=100%-Efficiency. Efficiency=Observed Speed or Distance / Engine Speed or Distance. Mean Apparent Slip = Distance Run by Propeller - Distance Run by Ship / Distance Run by ...Top speed at 5500 rpm with 4 people and about 170 gallons of fuel aboard was 34 knots (39 mph). Plugging the data into the propeller calculator suggests that at WOT, there is 18 percent slip. That seems high to me and may confirm excessive cavitation.kmclemore Site Admin Posts: 5934 Joined: Sun Feb 08, 2004 6:24 pm Sailboat: MacGregor 26X Location: Ambler, PA -- MACX2018A898 w/ Tohatsu 50D -- 78 BW Harpoon 4.6 -- 2018 Tahoe 550TF w/ 150 MercA 17" prop of similar design should give amazing hole shot ,add about 400 rpm and may improve slip. 12% is a reasonable slip,of course slip depends on the weight and style of the boat. Last edited: Nov 15, 2013. F.Table of Contents hide 1 What is Prop Slip? 2 Causes of Prop Slip 3 How Prop Slip Affects Performance 4 How to Know if Prop Slip is Occurring 5 Formula for Calculating Prop …

Example Problem Find the slip of an induction motor, whose actual speed n = 1450 rpm & synchronous speed n s = 1500 rpm. Solution The given data n = 1450 rpm n s = 1500 rpm Step by step calculation Formula to find speed difference = n s - n Formula to find slip = (n s - n) x 100/n s substitute the values in the above formulas speed difference ...Mercury Racing has released a propeller-slip calculator app for Apple and Android smartphones.When I ran the numbers through a prop slip calculator, I came up with 23%, which seems a bit on the high side to me. After evaluating my needs, I've decided I want a good balance between top speed, cruising, and watersports. From what I've read, a stainless steel four blade prop is probably the best overall choice. I haven't eliminated the High ...I ran the numbers in the prop slip calculator and using 54 mph am now down to a nice 16% slip. Im now wondering if its even worth the hassle of trying out the 23p Mirage plus..The operating range for my motor is 4600-5000 and it seems to me that im going to drop down to at least 4400 (more cup and 2 more inches of pitch) which is too low for my ...With the stock 8 inch prop, it would plane easy with 25 stone on board, without the need for weight distribution. Anything over that, then it would start to cavitate/ventilate so proper weight distribution is needed. With proper balance, it can plane at 11 knots, with 30 stone on board. This in my opinion, is amazing.

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FLO-TORQ Hub Kit 835271Q 2 (Yamaha) New Prop Availability. Availability of new propellers is difficult right now. Many models are on extended back order. Call or email for status prior to ordering. Email: [email protected] Phone: 920-295-4435. Search BBLADES. Propeller Manufacturers. BBLADES Propellers.Prop Slip Calculator; Used Propeller List; Contact BBLADES Today! Address BBLADES Professional Propellers N5007 Highway 73 Princeton WI 54968-8666; Phone Phone: 920-295-4435 Fax: 920-295-4436 Store Hours Monday - Thursday 8am to 4pm Friday 8am to 1pm Friday 1pm to 4pm by appointment; Find us on:Mercury Racing Propeller Manager Nick Petersen goes over the prop slip calculator tool.The propeller accelerates and rotates the wake of the hull to the rudder. The rudder works in the propeller slipstream, inducing maneuvering forces and moments. The upstream propeller affects the rudder induced maneuvering force while the presence of the rudder influences the propeller generated thrust and the required torque .I currently have a Nitro x-5 with a 115 Optimax and 20p laser II prop No jack plate "but hopefully getting one after the holidays." I am hitting 53mph fully lodaed ( two guys all gear and full tank) at a little over 3/4 throttle the problem is that I am unable to use full throtle because if i do the Motor alarm goes off because I get to the point of over reving.

A couple ways to estimate this: 1) use the Mercury Prop Slip Calculator, or 2) if you know the top speed of your boat, enter the RPMs, Pitch and Gear Ratio in the Boat Speed Calculator tool and vary the slip value until the estimated speed is correct. For example, I have a boat with a max RPM of 5,800, my propeller pitch is 24″ and the gear ... The Propeller Slip Calculator can be used to calculate two important numbers - Propeller Slip Range and Desired Propeller Pitch. To calculate your slip percentage: Enter your GPS verified top speed; Enter your drive’s gear ratio; Enter your maximum achieved RPM; Enter the pitch of your current propeller.When they talk about "prop slip", they are not talking about the prop physically slipping on the hub. Prop slip is the loss of bite in the water. No prop is 100% efficient, so therefore it will "slip" in the water not grabbing all the water that it can theoretically push. My prop slip is calculated at around 7% which is extremely efficient.G = Prop Nut, Brass Nylock, Mercury part # 11-827614, common to the Flo-Torq II, III and IV kits, 1/2" - 13 thread will fit Mercury, OMC, Bombardier, Honda and Suzuki mid-range and V-6 outboards as well as MerCruiser Alpha One sterndrives.Divide this difference by the actual speed. The number you get is your slip percentage. Slip is never a negative number, and will range from 5% on a light cat to 25% on a heavy workboat. Most hi performance applications will be between 7 and 12 percent. Use this calculator to figure out just about anything in regard to propeller, ratio, RPM and ...Best Answer. Copy. Slip=100%-Efficiency. Efficiency=Observed Speed or Distance / Engine Speed or Distance. Mean Apparent Slip = Distance Run by Propeller - Distance Run by Ship / Distance Run by ...In today’s fast-paced business world, efficiency and accuracy are key when it comes to payroll processing. One way to streamline this important task is by using a simplified salary slip format.These are the figures I came up with yesterday. The boat is running well on the second prop and jumps onto the plane readily. 1. Year, make and model of boat. 1993 Wellcraft Excel 18SX I/O Bowrider. 2. Length, width and base weight of boat, look for boat decal on back of boat. Centreline 18 ft.Prop Slip Calculator; Used Propeller List; Contact BBLADES Today! Address BBLADES Professional Propellers N5007 Highway 73 Princeton WI 54968-8666; Phone Phone: 920-295-4435 Fax: 920-295-4436 Store Hours Monday - Thursday 8am to 4pm Friday 8am to 1pm Friday 1pm to 4pm by appointment; Find us on:

Propeller Calculators use the relationship between RPM, RATIO, PITCH, (BOAT) SPEED, and SLIP as described below to calculate one parameter from the other four. RATIO, a positive number; lower unit gear reduction ratio; the number of revolutions of the crankshaft to produce one revolution of the prop shaft.

Propeller Slip Calculator Revised 20-APR-2013. Propeller Slip Calculator (PDF Preview) Propeller Slip Calculator (Excel Spreadsheet) (Index) Theoretical Speed Table. We have devloped a Theoretical Speed Table which calculates theoretical speed for various RPM, propeller pitch, reduction and overdrive ratios.Roughly how much prop slip can be expected from a 4 blade prop? I know that is a rough question, but just close. Also how close are prop calculators on a 4 blade and a LTV style hull? After the engine gets broken in I will measure prop slip, on a radar gun and with a good tach right now I am just dreaming about how fast I can get it. Thank you.:rolleyes:N5007 Highway 73. Princeton WI 54968-8666. Phone. Phone: 920-295-4435. Fax: 920-295-4436. Store Hours. Monday - Thursday 8am to 4pm Friday 8am to 1pm. Friday 1pm to 4pm by appointment. Certified Reconditioned Propellers from BBlades, Mercury, Hering, Hydromotive, Turbo, Stiletto, Acme, Signature.What is Prop Slip? When a propeller spins completely around this is called a "pitch." But when a boat is in water, the water creates drag against the boat and propeller, causing the propeller not to reach its full pitch. ... Mercury Racing has a great calculator that you can use. Bad Propeller Symptoms To Look For. Propellers are designed ...The Mercury Racing Bravo 1 FS Pro Finished propellers are designed for outboard and sterndrive applications. The 4 blades deliver unmatched time-to-plane performance, mid-range punch, delivering fuel sipping economy, and excellent top-end speeds for medium to heavy outboard bass, flats, cat flats, bay boats, center consoles and sterndrive deck ...Prop Slip Calculator; Step 1. Enter Gear Ratio. Step 2. Enter Pitch. Step 3. Enter RPM. Step 4. Enter Actual Speed. Step 5. Calculate Slip % Get the Latest News from Team Teague! Get Teague Custom Marine's Latest News Delivered to your Inbox. Subscribe. About "One Call Gets it All. We Have Everything But the Water." Information.Mercury Racing has released a new propeller-slip calculator app for Apple or Android smartphones. The app has all the functionality of the calculator at mercuryracing.com, which makes propeller testing easier and much more accurate. It can be downloaded for free from Google Play or Apple iTunes. Mercury Racing’s propeller guru, Scott Reichow ...Prop Slip Calculator; Used Propeller List; Contact BBLADES Today! Address BBLADES Professional Propellers N5007 Highway 73 Princeton WI 54968-8666; Phone Phone: 920-295-4435 Fax: 920-295-4436 Store Hours Monday - Thursday 8am to 4pm Friday 8am to 1pm Friday 1pm to 4pm by appointment; Find us on:

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Displacement Hull Propeller Calculator. Horse Power Engine RPM Gearbox Ratio. Displacement Kg Tons Pounds. Water Line Length Feet Metres. Required Speed Knots Decrease Speed. ... 1364 Shaft RPM. 40% Prop Slip. 1.49 Speed Length Ratio. Pitch = Diameter x 0.7 16.1 x 11.3 17.1 x 12.9 3 Blades S1 S2 ...Prop Slip Calculator; Used Propeller List; Contact BBLADES Today! Address BBLADES Professional Propellers N5007 Highway 73 Princeton WI 54968-8666; Phone Phone: 920-295-4435 Fax: 920-295-4436 Store Hours Monday - Thursday 8am to 4pm Friday 8am to 1pm Friday 1pm to 4pm by appointment; Find us on:Pitch ratio 0.71 slip ratio 0.38 , 3 bladed 21.04 Inch Pitch 14.99 but only 6.5 knots. Castle marine makes props. They allow you to download their programme, but you cannot ask questions about the program.The new BBLADES 5-Speed is the latest in the BBLADES family propellers being developed to offer the broadest flexibility in matching purpose-designed propellers that are easily customizable within their performance parameters. The BBLADES 5-SPEED can be demoed through the BBLADES Propeller Test Program and test fee does go towards purchase of ...Propeller Slip Calculator; Contact Us; One of the smallest and most damage-prone parts of your boat is unfortunately also one of the most critical for optimal performance. A bent or damaged propeller can affect the general performance of your boat like the ability to gain or maintain speed or having difficulties steering. It can also affect ...I have a 13' fiberglass skiff i rebuilt from a salvage boat. My old neighbor gave it to me a while ago and i put lots of glass work and paint into it. I have a 1996 Mercury 2 stroke outboard powering it. It is a manual start tiller. I am currently running the propeller it came with 9 1/4 diameter x 9 pitch. The boat tops out at around 22-23 by ...Boat Speed calculator; Find your prop slip. Prop slip calculator; Sterndrive Ratio Changes; Bravo Drive Failures; Alpha Shift Problems; Excessive Steam or Smoke; Test Sterndrive trim cylinders; Employment; The Blog Prop Slip Calculator; Used Propeller List; Contact BBLADES Today! Address BBLADES Professional Propellers N5007 Highway 73 Princeton WI 54968-8666; Phone Phone: 920-295-4435 Fax: 920-295-4436 Store Hours Monday - Thursday 8am to 4pm Friday 8am to 1pm Friday 1pm to 4pm by appointment; Find us on:‎Propeller slip calculator for powerboats Plearse use this calculator to figure out all parameters in regard to pitch, gear ratio, RPM, speed and slip. Enter any four variables, …I have a 13' fiberglass skiff i rebuilt from a salvage boat. My old neighbor gave it to me a while ago and i put lots of glass work and paint into it. I have a 1996 Mercury 2 stroke outboard powering it. It is a manual start tiller. I am currently running the propeller it came with 9 1/4 diameter x 9 pitch. The boat tops out at around 22-23 by ...BBLADES now carries a line of spacer plates for Bravo and Bravo SportMaster drives offered in 1-, 1.5-, and 2- inch varieties that can be tested for 15-days at a cost of $100 per plate. A deposit of $500 is required, but both the deposit and test fee are applied to the purchase price if the spacer plate delivers the desired results.It doesn't actually explain what causes the propeller to "slip" and then loosely ties that concept to propeller efficiency by saying: "Propeller efficiency varies from 50 to 87 percent depending on how much the propeller slips". I understand the different factors that cause the propeller efficiency to be less than 100%, but I don't understand ... ….

‎Propeller slip calculator for powerboats Plearse use this calculator to figure out all parameters in regard to pitch, gear ratio, RPM, speed and slip. Enter any four variables, and it will calculate the fifth. Pitch is the theoretical forward movement for one complete turn of the propeller. Every…1. Boat Hull. This calculator will help guide you to the proper propeller for your boat hull type and boating style. Start by clicking on the type of boat hull that most closely matches your boat. Our Propeller Calculator can help you to choose the right prop for your boat and Honda outboard. It's a fast, easy way to select a prop.Prop Calculators on the Web. Mercury's Prop Selector Mercury's: prop selector is based off a complex formula to calculate the appropriate prop based on an approximation of your hull's performance characteristics. Mercury's Prop Slip Calculator: calculator based on Mercury's Prop Slip Calculator. E. ekrysinski · #3 · May 1, 2019. majek m2 prop info. I have an Illusion M2 with a 225 SHO on it and have been experimenting with different props. The original prop that came on the boat is a Solas 9553-143-17 and it would get 5600 RPM good speed with fair to OK hole shot and cruise speed. This prop is a 14.25" diameter 17 pitch.Just for a data point I went to the go-fast.com BAM prop slip calculator which I use as my reference. Plugging in your 1.87 gear box, 5500 rpm and 17p prop I only get 47 for a theoretical speed; that's the speed if your prop were turning in a solid medium. All screws (props) running in water have some slip which would reduce the speed even further.When there is "more slip" it is easier for the propeller to move water out of the way, but when there is "more" slip we move a slightly shorter distance for each revolution of the prop. A smaller prop will usually display a bit lower calculated "slip" ratio, but may or may not be a sufficient advantage to generate the result of higher measured ...Raising The Bar In Propeller Performance! 920-295-4435. Prop Slip Calculator. News. Contact Us. No products in the cart. Search. Home. All Props.Oct 9, 2023 · The calculated value is indicated by the shaded heading in the table. This useful calculator computes the speed-of-advance of a propeller based on: propeller PITCH, in inches. The potential boat speed is then calculated from the speed-of-advance using SLIP, a percentage of lost speed, and unit conversion to boat speed in statute-miles-per-hour. Edit. I just ran the numbers for my 4 blade 10X12 aluminium prop, WOT 5780 rpm at 27 mph and theoretical top speed is 30.55 mph and using the same formula, prop slip is 11.62 %. So maybe going by how my boat feels to drive with the SSP and aluminium props, the prop slip of 6.667 % for the SSP prop is correct. Prop slip calculator, Sometimes you just need a little extra help doing the math. If you are stuck when it comes to calculating the tip, finding the solution to a college math problem, or figuring out how much stain to buy for the deck, look for a calculator onl..., Best Answer. Copy. Slip=100%-Efficiency. Efficiency=Observed Speed or Distance / Engine Speed or Distance. Mean Apparent Slip = Distance Run by Propeller - Distance Run by Ship / Distance Run by ..., Use this calculator to calculate the speed, slip, pitch, gear ratio, or revs of a boat. Enter four of the five variables and get the result instantly. Learn the definition and equations of propeller slip., Prop Slip Calculator Calculate. Featured Story. Prop History. Mercury Racing has a well-earned reputation for handcrafting high-performance and racing propellers that consistently offer unrivaled performance. That reputation is based on more than 50 years of experience. In the mid-1970s, Mercury Hi-Performance (the precursor business to Mercury ..., 08.05.22. Propeller Spotlight: DCB Finds Performance Perfection with CNC Cleavers. When it comes to building custom high-performance catamarans, California-based builder DCB has become known for its top tier quality and for squeezing every drop of performance out of its new boats – all while offering customers a multitude of customization on every hull model it produces. , Propeller slip calculator for powerboats, Like. Sort by Oldest first. Boatally Insane · #2 · Aug 21, 2006 (Edited) Fist off, a 28 Bravo is actually a 27 pitch prop so using a 1.5 gear ratio with a 27 pitch prop your slip is 8%. A 26 Bravo is a 25 pitch prop which is 2 pitch sizes smaller which will give you 400 rpm. BUT the good news is that your engine will make more hp at 5500 than ..., Lower Unit Assemblies, Prop Shafts, & Transmission Components. Engine Belts. Suzuki Portable Outboards. ... Mercury - Prop Slip Calculator - 90-86147A1. ... Used to calculate the slip percentage of a boat. More Information; Manufacturer: Mercury: MPN: 90-86147A1:, I went back to the calculator and using your numbers I got 5% slip. Which is probably impossible. (single prop drives on planing boats is usually 12-15%) This indicates that your tach might be off by more than 200 RPM. Since you KNOW the ratio, prop pitch and speed, you can use the calc to figure your theoretical speed (zero slip), Prop Slip Calculator; Used Propeller List; Contact BBLADES Today! Address BBLADES Professional Propellers N5007 Highway 73 Princeton WI 54968-8666; Phone Phone: 920-295-4435 Fax: 920-295-4436 Store Hours Monday - Thursday 8am to 4pm Friday 8am to 1pm Friday 1pm to 4pm by appointment; Find us on:, A 1.85 ratio with 12" pitch prop at 4400 can only calculate to 25mph at 10% assumed slip. The 1.85 ratio sounds off to me, just seems like a 2.0-2.3 range is more appropriate for a 50hp, but that is just me., Prop Slip Calculator Calculate. Featured Story. Prop History. Mercury Racing has a well-earned reputation for handcrafting high-performance and racing propellers that consistently offer unrivaled performance. That reputation is based on more than 50 years of experience. In the mid-1970s, Mercury Hi-Performance (the precursor business to Mercury ..., The propeller slip calculator is a valuable tool for boat enthusiasts and professionals alike, offering insights into how effectively a boat’s propeller converts engine power into thrust. Whether you’re a recreational boater looking to optimize your speed or a maritime engineer seeking peak efficiency, this calculator is an indispensable ..., Prop Slip Calculator Calculate. Featured Story. Prop History. Mercury Racing has a well-earned reputation for handcrafting high-performance and racing propellers that consistently offer unrivaled performance. That reputation is based on more than 50 years of experience. In the mid-1970s, Mercury Hi-Performance (the precursor business to Mercury ..., Apr 28, 2020 · It makes perfect sense. More weight = more drag = more prop slip. Prop slip IS the variable in boat performance. It accounts for weight, drag, aerodynamics, etc. complied into one variable. That’s why if you’re testing props, to compare performance accurately it needs to be done on the same day, same body of water, same weight etc. , Prop Slip Calculator; Step 1. Enter Gear Ratio. Step 2. Enter Pitch. Step 3. Enter RPM. Step 4. Enter Actual Speed. Step 5. Calculate Slip % , Prop Slip Calculator Calculate. Featured Story. Prop History. Mercury Racing has a well-earned reputation for handcrafting high-performance and racing propellers that consistently offer unrivaled performance. That reputation is based on more than 50 years of experience. In the mid-1970s, Mercury Hi-Performance (the precursor business to Mercury ..., Are my calculations correct and is the prop slip of 6.667 % a believable / realistic figure. If the answer to either is no, could you please explain why. Advice appreciated. GEB. Edit. I just ran the numbers for my 4 blade 10X12 aluminium prop, WOT 5780 rpm at 27 mph and theoretical top speed is 30.55 mph and using the same formula, …, If you want your slip-on Kizik shoes to last, it’s important to take care of them. With a little bit of effort, you can keep them looking new for much longer. Here’s what you need to know., I think the prop slip calculator could possibly "show" a 0% or negative slip in the math, if the advertised pitch is low, or has a ton of cup maybe? But yeah, realistically, I am curious too if a true lower than 1% slip is attainable? Probably too many variables in prop design to definitively say yes? May 17, 2019 #10, Divide by 5280 = Miles per minute, multiply x 60 = miles per hour. This can be shortened to (Pitch x RPM) / (Reduction x 1056) = MPH. Slip is figured by comparing this theoretical speed to the actual measured speed. By the way, for these calculations, add 1" to the pitch if your prop is cupped. (Just about all hi-performance props are), Prop Slip Calculator; Used Propeller List; Contact BBLADES Today! Address BBLADES Professional Propellers N5007 Highway 73 Princeton WI 54968-8666; Phone Phone: 920-295-4435 Fax: 920-295-4436 Store Hours Monday - Thursday 8am to 4pm Friday 8am to 1pm Friday 1pm to 4pm by appointment; Find us on:, Prop Slip Calculator; Used Propeller List; Contact BBLADES Today! Address BBLADES Professional Propellers N5007 Highway 73 Princeton WI 54968-8666; Phone Phone: 920-295-4435 Fax: 920-295-4436 Store Hours Monday - Thursday 8am to 4pm Friday 8am to 1pm Friday 1pm to 4pm by appointment; Find us on:, Product Description. Quicksilver Part #90-86147A 1. Z Prop Slip Calculator Replaces Mercury / Mercruiser<br><br>Prop slip calculator lets you quickly determine propeller slip. Slip is the difference between actual and theoretical travel resulting from a necessary propeller blade angle of attack. Package Quantity = 1., ‎Propeller slip calculator for powerboats Plearse use this calculator to figure out all parameters in regard to pitch, gear ratio, RPM, speed and slip. Enter any four variables, and it will calculate the fifth. Pitch is the theoretical forward movement for one complete turn of the propeller. Every…, Percentage of Slip = ————————————————- X 100%. Engine distance. The actual distance (nautical mile) covered by the ship from noon to noon is measured using the ship's log. The total revolutions of the propeller from noon to noon is obtained using the revolution counter., The Mercury Racing Bravo 1 XC Pro Finished propellers are designed for shallow water running requiring quick planing and durable trailing edges. Equipped with PVS allowing exhaust adjustment for planing, extended barrel to support quick hole shot and extra trailing edge cup for greater durability. Hub kit sold separately, 835257K6 or 835258K2 ..., Propeller Slip Calculator; Contact Us; One of the smallest and most damage-prone parts of your boat is unfortunately also one of the most critical for optimal performance. A bent or damaged propeller can affect the general performance of your boat like the ability to gain or maintain speed or having difficulties steering. It can also affect ..., Depends on what boat you have and how you use your boat. Yes WOT rpm needs to be in the correct range for your engine. generally 4 blade will provide better hole shot , slow planing speed, and stern lift at the expense of top speed. I have run 4 blades on my last two boats because my general use is 6-7 people while towing a skier or wakeboarder., Tech Forums. V-Drives. Formula, Dec 12, 2022 · If slip is greater than 25%, there is likely an issue with the propeller. It could be damaged or just wildly wrong for the boat-and-engine combination. Or, it could be ventilating because the outdrive or outboard motor is mounted too high on the transom. The online Mercury Racing Prop Slip Calculator makes it easy to calculate prop slip ... , Re: prop advice please, 50hp Johnson 2 stroke on a 17' aluminum bass boat I figure your at about 1600 lbs. I wonder if your ventilation may be prop related more than motor height. Can't really tell much about your actual slip without your gps speed Your speed at 12% slip would be about 28. A 17" prop at 5100 rpm 12% slip would be about 30., Sorry Phil cant help you out much but will tell you that 2015 WX 2060 with a yammy 250 offshore with a 19 saltwater 2 prop, she loves to breathe. When it is clam out I trim it out a lot, almost to where the second speed trim kicks in gear. When running in 3 footers I am close to 80-90% trimmed all the way down.