so the absolute maximum numbers would be about 69000 for salt water or 67000 for fresh water. subract the 12000 pounds that you estimated and you have a figure of about 57000 for salt and 55000 for fresh water. of course you would not dare load the barge all the way up to the deck line.
marine refrigeration sizing. how big a refrigeration compressor and plate combination. before we pick a size of marine refrigerator we need to understand what factors are involved in keeping the refrigeration box cool. they are mainly box size, insulation and cooling water temperature, number of people aboard and the temperature you are setting the plates for.
marine deck calculation formula. the amazing race season 24 episode 9 . selecting the silver ford mustang hardtop, the cowboys now had to use numbers from road signs on the building behind them with an enclosed formula to calculate the model year of their ford mustang. a model year.
to determine the maximum load capacity of your deck, start by calculating its total area and multiply by 50 psf. so a 100 sqft deck would be designed to support 5000 lbs. don't get confused with what weight you might think or want to load the deck with. if you drove a dump truck over it, yes this would throw all our calculations out the window.
structure tonnage to the gross tonnage s of the vessel's hull s . deck structures are considered excessive in size if the tonnage of the principal deck structure calculated using the formula below is equal to or exceeds the gross tonnage s of the vessel's hull s . d l b principal deck structure d prinicpal deck lbd
deck height is a vital engine measurement that dictates rod length, crankshaft stroke, piston-to-head clearance, and so much more. here, we define deck height, how to measure it, and its impact on your next engine build. its all part of the art of building a performance or competition engine. the details separate the exceptional from the
the protection factor for all primers and antifouling is two coats for good and three coats for best. the amount of paint applied with each coat varies considerably on the method of application so this is just a rough guide. to work out a basic area, a cube or a cylinder use the paint area calculator here.
divide figure into two areas corner to corner and it's the sum of these, using the formula above. there is a formula for many shapes like; trapezoid, parallelogram, parabola, circle, ellipse, polygon, circular segment or section and probably a few i've forgotten.
the calculator below uses the above formula. 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.
how to calculate draft divide the total volume of water displaced by the surface area of the boat's deck. in the example you would divide 5.47 by 120 the surface area of the deck and get 0.046 feet. add together the result from step 1 and the result from step 7 to obtain your boat's draft. in the example, you would add 3 to 0.046.
formula that boat manufacturers and builders are required to use to determine persons capacity for recreational boats, or for commercial passenger carrying boats. the formula is a rule of thumb. it is only meant to be used as a rough estimate. it is in the handbook only as a way to estimate the number of passengers.
5 net tons. all dimensions used in simplified tonnage calculations are in decimal feet to the nearest tenth of a foot. 12. gross tonnage formulation monohull vessels the basic simplified tonnage formula for gross register tons of a monohull vessel is: grt = hull volume deckhouse volume /100 where: hull volume = s x k x l x b x d
pen and paper method. directions: to apply these formulas to your boat, plug in its horsepower rating and multiply it by the specific fuel consumption average, then divide the product by the fuel specific weight.* formula to estimate maximum engine fuel consumption gallon per hour gph =
re: is there a formula to calculate speed from hp and weight? well, there is a basic formula that has worked well for me. wot= square root of hp/weight x bf bottom factor bottom factors range from about 150 for a deep vee to about 225 for a jon flat bottom. you just have to guess where yours falls. the example below uses 150 for bf.
offshore lifting is a common operation in offshore construction or installation projects at sea. in this article, we will discuss offshore lifting operations and associated engineering analysis, safety precautionary measures, contingency plans, and challenges involved in lifting.
mercury marine uses the following formula to estimate potential top end, this calculator uses this formula. the square root of total shaft horsepower / weight x constant = speed the constants have been developed from experience, and are as follows:
taking 5,000 divided by 300 gives you a result of 16.6 pounds per horsepower. doing the opposite calculation taking 300 divided by 5,000 gives you a result of 0.06 horsepower per pound. the lower the number, the faster your boat will go.
the formula for this calculation is d-f lwl x b, where d = molded depth, f = freeboard, lwl = vessel length at waterline and b = beam of the vessel. divide the amount of ballast to be added or removed by 64.1.
here's the supporting calculation. table 1 shows that it takes 3588 pounds to submerge these six floats to 100% 6 x 598 equals 3588 . so then 3588 pounds of buoyant force minus the 1440 pound dead load of the dock leaves 2148 pounds of available live load.
our deck is as simple as it gets in order to illustrate the concepts deck load capacity and transfer of weight within each tributary area. this deck is 10`x10` or 100 sqft. there is a ledger board attached to the house.
formula using 70% deadweight for capacity. .2 estimated index value in the guidelines for calculation of the reference line is calculated using 70% deadweight as: ae.3 parameters a and c for containerships in table 2 of regulation 21 of marpol annex vi are determined by plotting the estimated index value against 100%
for dense, heavy cargo low on the deck, you could calculate the difference in displacement at lightship conditions unloaded draft and at the plimsoll line maximum draft/minimum freeboard condition , and get a rough estimate. for lighter, bulkier cargo, you also have to consider stability based on the height of the center of gravity above deck.
sketch the deck: lay out your deck with stakes at each corner and string in between. then, use a long tape measure to determine the total length and width of your deck enter into calculator . then, use a long tape measure to determine the total length and width of your deck enter into calculator .
propeller slip happens because the propeller is in a fluid water , and the fluid has viscous properties. this can also happen in every medium, such as air. the other usual formula to calculate propeller slip is as shown: note: all marine engineers are to learn and know how to calculate slip, bunker, etc.
.1 cargo tank deck area a1 defined as the product of the maximum breadth of the ship and the total longitudinal extent of the cargo tank spaces. here breadth b1 = 32.20 m, length l1 = 131 m area a1 = b1 x l1 = 4218.2 sq.m 2 area of the largest single tank a2 is defined as the product of breadth b2 and length l2 .
prop slip calculator. is it important to know your props slip? only if you care about insignificant, little items like thrust. slip is the most misunderstood of all propeller terms, probably because it sounds like something undesirable.