Many models are on extended back order. Call or email for status prior to ordering. Email: [email protected]. Phone: 920-295-4435. BBlades Propellers. BBLADES 4-SPEED OB/FX. BBLADES 4-SPEED. BBLADES Blaster.This calculator essentially allows the user to enter their propeller's pitch, gear ratio, engine rpm, actual speed, and then calculate their boat's propeller slip. Why We Love It Calculating the ideal metrics from which a boat will be its most efficient is great the boat's engine, the boater's pocket book, and the environment. Plug in your info, and click "Calculate" on the item you want to compute. By using known values for the weight, power and speed you can come up with a more accurate constant for your boat. You can then see what effect changes to weight or power will have on top speed. Using the calculator in this fashion will produce surprisingly accurate results.Calculate: The calculator will provide you with the propeller slip percentage, revealing how efficiently your propeller is performing. Interpret Results: A lower slip percentage indicates better propeller efficiency, while a higher slip percentage suggests room for improvement.The lost distance of the pitch due to drag is called the propeller slip, or prop slip for short. Reducing the prop slip results in enhanced performance and fuel efficiency. How do you measure propeller slip? Calculate Propeller Slip: RPM div by GEAR RATIO x PITCH div by 1056 = Theoretical Speed. Then you divide the customers actual (gps) …Powerboating discussion forum focused on performance boats, bass boats, outboard engines, boating events, boat racing, and latest marine newsBoat Speed calculator; Find your prop slip; Sterndrive Ratio Changes; Bravo Drive Failures; Alpha Shift Problems; Excessive Steam or Smoke; Test Sterndrive trim cylinders; BAM Marine of Florida Inc: 315 SW 15th Ave: Pompano Beach …Mercury - Prop Slip Calculator - 90-86147A1. Have Questions? ... Used to calculate the slip percentage of a boat. More Information; Manufacturer: Mercury: MPN: 90-86147A1: Customer Reviews. Be the first to review this product. 0%. of customers recommend this product. 5 Stars. 0 %.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:Founded in 1995, Dunnrite Propellers are specialists in supplying, tuning and repairing marine propellers. A personal professional experience is assured when you deal with Dunnrite Propellers. The following has been put together by Dunnrite Propellers so that boaties may calculate the efficiency or slip of a propeller.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.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…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 #10In reality since the propeller is attached to a shaft it will not actually move forward, but instead propel the ship forward. The distance the ship is propelled forward in one propeller rotation is actually less than the pitch. The difference between the nominal pitch and the actual distance traveled by the vessel in one rotation is called slip.Betting Calculator. Before making any bet, it helps to know what you're risking for the expected payout. Enter Your 'Bet Amount' - that's what you're risking, along with the American, fractional or decimal odds. See what your total payout and winnings will be. Betting Calculator Parlay Calculator.My first app was a prop slip calculator and it can generate the speed in which you should be running by entering these four variables: RPM, Drive Ratio, Prop Pitch, and Slip %. Now this calculator will based from the following: The Square Root of (Total Shaft Horsepower / Weight ) x Constant = Speed. The constant will be a variable based on ...The propeller slip calculator relies on a simple yet essential formula to determine propeller slip: Propeller Slip (%) = (Actual Speed – Theoretical Speed) / Actual Speed × 100% Actual Speed: The real-world speed your boat achieves on the water. Well, I get -2% slip for my prop, I have a 3x16x18.5 propeller. Just to make sure its clear that is 3 blade 16 inch diameter 18.5 inch pitch. The engine will turn between 5900 RPM to 6000 RPM on the tach depending on conditions, tide, wind ect. and I can run from 42 to 43 MPH on the GPS and that is three different GPS readings.The angle of the propellers aerofoil shape to the propellers axel changes as you move from the Center to the tip. The more pronounced the blade rotation the higher the intended tip speed. From memory having the tip speed running at 1-3 times the the air flow speed is not efficient, but at least the propeller works over a wide range of air speeds.This calculator is designed to give any missing value from the 5 variables needed for marine propeller calculations. They are engine RPM, prop gear ratio (normally for 1.5 to 3.0), prop pitch (the distance that a …16.9 x 11.5 2 Blades S4 S6. 31 Horse Power Needed to Reach 9.2 Knots. 27 Shaft Horse Power Available. 8.3 Knots Max Hull Speed. 1364 Shaft RPM. 40% Prop Slip. 1.49 Speed Length Ratio. Propeller Slip Calculator; Contact Us; Performance Measured. TrueProp™ Software allows us to intelligently assess damaged props, draft a repair plan and be able to prove compliance with ISO-484 criteria. Measure.Repair.Report. Shop now Performance Measured. TrueProp™ Software allows us to intelligently assess damaged props, draft a repair ...In Israel, the country’s central bank said Monday it will sell up to $30 billion in foreign exchange to prop up the shekel, whose value tumbled after the violence began. …The slip of a prop changes with operating conditions. You might find a simple calculator that will give you a rough guide but if you really want to understand how propellers work and do realistic calculations then I recommend you learn about JavaProp:2 nov 2020 ... Does anyone know what level of prop slip (using Mercury propeller slip calculator) is typical for a 2021 Ranger z521L w/300?slip is the only thing you can not say you have a 100 % right on What differs is the slip ratio or how efficient the prop creates thrust. I disagree that these are the only possibilities or even the most likely How accurately the prop pitch is measured and reported makes a huge difference in the output from any algorithm.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…Just because the prop is stamped as to what the pitch is doesn't mean that is necessarily that pitch. The only real way to know is to measure the pitch instead of going by what the prop manufacturer has stamped on it. Anyway, if your prop is actually a little higher pitch than what you have calculated, you are still set-up really well.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:There are several prop slip calculators on the web, search for one and plug your numbers in. You should get around 10-15% slip. R. Rudy Brown Petty Officer 1st Class. Joined Apr 3, 2005 Messages 289. Feb 14, 2007 #3 ... xpress h51 prop I calculated 6% slip.( thats pretty good) Sounds like Kenny, and you were right and you are too skinny on propPropeller Slip Calculator; Contact Us; Midwest Boat and Prop is the upper Midwest’s largest propeller repair shop. Our skilled technicians repair approximately ten thousand propellers annually. With combined experience of over 75 years in the industry, we clearly love and take pride in what we do. ...Using Yamaha's performance data, the prop slip calculated using their data on the Mercury prop slip calculator was 5. I purchased this boat new in 2018 and Yamaha props were hard to come by at that time and we went with a Merc. Tempest Plus 3x14 5/8"x 19. Not enough RPM's so last year I ordered the Yamaha prop from Bass Cat Boats over on ...Nov 29, 2006All Used propeller sales are final and void of. Skip to content. Raising The Bar In Propeller Performance! 920-295-4435. Prop Slip Calculator; News; Contact Us ... In today’s fast-paced business environment, time and efficiency are critical factors in ensuring smooth operations. One area where businesses often struggle to streamline processes is in generating monthly salary slips for their employees.Solas Prop Finder. Find the Solas Propeller that fits your drive system perfectly. Cross-referenced with all major brands' original equipment. SOLAS® is the most well known and trusted name in outboard and stern drive propellers in the world. Available as SOLAS® Brand traditional single piece pressed rubber hub, or RUBEX® Brand ...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.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:Calculated propeller slip within the range of 5% to 25% is typical and acceptable. 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.Propeller Slip Calculator; Contact Us; Performance Measured. TrueProp™ Software allows us to intelligently assess damaged props, draft a repair plan and be able to prove compliance with ISO-484 criteria. Measure.Repair.Report. Shop now Performance Measured. TrueProp™ Software allows us to intelligently assess damaged props, draft a …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…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: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.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.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 This calculator is designed to give any missing value from the 5 variables needed for marine propeller calculations. They are engine RPM, prop gear ratio (normally for 1.5 to 3.0), prop pitch (the distance that a propeller would move forward in one revolution), prop slip (the efficiency of the prop, lower at high speed, but perhaps very ...My first app was a prop slip calculator and it can generate the speed in which you should be running by entering these four variables: RPM, Drive Ratio, Prop Pitch, and Slip %. Now this calculator will based from the following: The Square Root of (Total Shaft Horsepower / Weight ) x Constant = Speed. The constant will be a variable based on ...SpitFire X7, a new stainless steel propeller designed to increase speed and acceleration on all boat types with mid-range outboards. The SpitFire X7 is the first propeller for 40 hp CT – 125 hp outboards manufactured with Mercury’s proprietary X7 Stainless Steel Alloy, providing additional strength and durability. 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 ...May 24, 2022. #4. The gofast.com calculator is simple. 2.33 is 2.33, RPM is in HZ...5500 is 5500, prop pitch is in inches...19P is 19. Push the title block over Max Speed and you get max speed in MPH....that's a screw turning in wood, not a propeller turning in a movable volume....water. Jump over to your GPS Actual Speed and insert it in MPH.Performance Marine Parts | Ski Boat Parts Online | Teague ... 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 I checked your numbers with a prop slip calculator and they seem pretty reasonable provided your prop has some cupping and your actual speed is rounded up. 3% slip is too good a number for an underpowered boat. Should be more like 10-12%. 2009 Alumacraft Navigator Sport, E90HSLAFA, SER 05395664 Reply. Sculpin67 5 posts. Share ...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:Calculated propeller slip within the range of 5% to 25% is typical and acceptable. 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 …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 ...Propeller slip is the difference between the geometric pitch of the propeller and its effective pitch. [Figure 1] Figure 1. Effective pitch and geometric pitch: Geometric pitch is the distance a propeller should advance in one revolution with no slippage; effective pitch is the distance it actually advances. Thus, geometric or theoretical pitch ...16.9 x 11.5 2 Blades S4 S6. 31 Horse Power Needed to Reach 9.2 Knots. 27 Shaft Horse Power Available. 8.3 Knots Max Hull Speed. 1364 Shaft RPM. 40% Prop Slip. 1.49 Speed Length Ratio. Prop slip is a measure of how efficiently the boat is going through the water. Prop slip is not the same thing as propeller efficiency. If the prop did not slip at all as it screws through the water, each rev theoretically propels the boat the forward a distance equal to the prop pitch.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: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.The Propeller Calculator is based on over 50 years of extensive test data and research and delivers industry-leading accuracy every time.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. No products in the cart. $ Search: Search. BBlades Propellers Home; All Props ...Now that she has a healthy motor, the slip seems a bit excessive. 340HP 454 1.5:1 Velvet V Drive Prop is a Michigan Wheel Dynajet 3 blade 17RH16 with no known modifications Performance readings: RPM Speed in knots measured by GPS and calculated slip% based on one of the various online slip calculators Idle 650 3.1 49% 1000 4.2 52% 1500 6.4 63%Quick View. $24.99. Quick View. $24.99. Quick View. $24.99. Quick View. $24.99. Hering Propellers is a high performance propeller manufacturer, recognized by racers and boat enthusiasts throughout the world.5,820. May 13, 2005. #2. Re: Can you calculate boat speed from prop pitch and rpm? taab,<br />It should get ya in the ball park. I'm not sure about your slippage number, sounds close. A lot of other variables effect top speed, hull design, weight, load distribution, water conditions, and air temp. to mention a few. Your best bet is a GPS.The results are in – a 300R FourStroke spinning a 31-inch pitch MAX5 ST prop powered a tournamentloaded Bullet 21 XRS bass boat to 97.5 mph with a mere 7 percent slip! Half-inch pitch offerings enable engines to be dialed in to their maximum rpm operating range for enhanced throttle response, optimized cruise fuel efficiency and top speed.BAM's online boating mega-catalog. All the parts and accessories you need to get on the water FAST! Great prices on great products shipped to you quickly from distribution centers all over the country. Go-Fast.com was our first web site that went online back in 1998. Our propeller slip calculator, boat speed calculator and technical articles ...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 ...The Trailing Edge – The part of the blade where the water leaves. 4. The Cup of the Blade – This is the curve in the trailing edge of the prop blade that extends from the hub to the tip. It adds pitch to the blade. 5. The Blade Face – That part of the blade that faces aft and is the positive pressure surface. 6.Helpful Tools for Finding the Right Prop. The Mercury Prop Selector Tool is a great resource that will help you narrow down prop options for your boat and engine combination. Also, more than 100 Mercury dealers in the United States are participating in the Demo Prop Program, which allows a boat owner to test-drive a stainless steel Mercury ...273. My PB: Between 8-9 lbs. Favorite Bass: Largemouth & Smallmouth. Favorite Lake or River Potomac River. Posted September 27, 2013. Like what Martin said, it may boost MPH by about 1-3 MPH. Just go on Merc website and go to the prop selector section.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 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 ...Theoretical required prop pitch in inches. All units used are imperial. Estimated prop slip at required top speed. Required prop pitch for top speed. This is an automatic calculation from shaft horsepower and rpm at prop on Torque sheet. Propeller Diameter in inches. Propeller Pitch in inches. Rules of thumb. One inch diameter = 2.5 inches of ...Realistic Slip number for a 2003. Thread starter K-DAWG XB 2003; Start date Jan 29, 2011; Prev. 1; 2; First Prev 2 of 2 Go to page. Go ...kmclemore Site Admin Posts: 5924 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 MercTechnical Notes: Calculating Prop Performance. Here is a way to calculate prop performance with different props, a formula suggested to us by technician Peter Arneson: Props slip, so they're about 85 to 90 percent efficient. Multiply mph by 0.85 to determine final boat speed. Here are the calculations for an example motor and two different prop ...I'm currently restoring a bass boat that includes adding hull spine and a full blueprinting of the hull. Currently most prop slip calculators have my setup at 14-15% Slip WOT / Full Trim / Jackplate at Max MPH. The hull has 2 massive Hooks on each side of the Pad plus a small Rocker 6in forward of transom, 12-14ins long, right in the Pad.Select options. BBLADES PropStop Cover $ 44.99 $ 49.99. Select options. Address. BBLADES Professional Propellers. N5007 Highway 73. Princeton WI 54968-8666. Phone. Phone: 920-295-4435.In Israel, the country’s central bank said Monday it will sell up to $30 billion in foreign exchange to prop up the shekel, whose value tumbled after the violence began. …The 4-blade will have somewhat lower slip than the Rebel. With the lower weight of the hull, that will most likely mean that a 15" 4-blade will suit your boat very well. Reply. Boatrob 27 posts. Share; Boatrob 1222439098. ... I like less prop slip. and am fishing rough seas regularly. I have always thought I would hook up better with the 4 blade.No headers. Figure 6.1: Propeller schematic. A schematic of a propeller propulsion system is shown in Figure 6.1. As the reader would notice, this illustration has strong similarities with the continuity equation illustrated in Figure 3.3.The thrust force is generated due to the change in velocity as the air moves across the propeller between …28 abr 2020 ... 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 ...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:Calculate the prop slip range and desired propeller pitch for your boat using this online tool. Enter your GPS verified top speed, gear ratio, engine RPM, and current speed to get the results.If I am using the prop slip calculator on Mercury's website correctly I am at -8937 prop slip. Like I say if I am using it correctly and it is . Bass Cat Boats. Login; Join; HOME. Bass Cat Boats. Bass Cat Owners is a forum for Bass Cat owners to learn, share, and discuss more about their boats. ...Unlike other systems, the BLADES 4-SPEED tunable 7/8″ CAPS is a full 1/4 of an inch larger and the three variable size plugs are made of a pliable rubberized material, meaning they are reusable and can be swapped out while the propeller is still on the drive. The new BBLADES 4-Speed is the latest in the BBLADES family propellers being ...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 ...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…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 ...Re: Prop Slip Calculator (Largemouthlou) Sorry to invade your space, but I have a question about prop slip. I have a 202 Champion with a 250XB, 27 trophy, I think it is a 1.87 gear, at 5800 rpm I run 82 mph and that comes up to a -4% slip.Prop Slip Calculator Calculate. Featured Story. Prop History. Mercury Racing has a well-earned reputation for h, Propeller slip calculator for powerboats Plearse use this calculator to figure out all parameters in regard to pitch,, Do you have a hard time getting your kids to keep their shoes on? If so, you’ll want to check out slip-on Kizik sho, A 1.85 ratio with 12" pitch prop at 4400 can only calculate to 25mph a, The Trailing Edge - The part of the blade where the water leaves., Prop Slip Calculator; News; Contact Us; Top Bar - , I have a x19 with a flashed 200 SHO. I have tried 4-5 props so f, Like. Sort by Oldest first. Boatally Insane · #2 · Aug 21, 2006, Sep 30, 2015 · My slip at WOT is 23.5% (5200 rpm), and cruise is , The propeller slip calculator is a valuable tool for boat en, Prop Slip Calculator; Used Propeller List; Contact BBL, How much prop slip is acceptable? Think I am at 20%....., Slip (percent) = Engine distance – ship’s distance/ E, The theoretical travel is determined by the prop pitch. , When referring to propeller size, such as 3 x 13 x 18, If I use a prop calculator, that puts me at ~6% slip compared with ~21, Propeller slip is defined as the loss, expressed in percent, , Prop Slip Calculator Calculate. Featured Story. Prop History.