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The propeller slip on a ship is calculated by comparing the distance the ship travels say in 24 hours with the theoretical distance the propeller should have travelled according to its pitch.
If the ships propeller has a pitch of 5 metres then it is trying to advance through the water at a rate of 5 metres / revolution. If the engine is turning at 100 RPM then this is 500 metres / minute or 720000 /day IE 720 kilometres.
If the mate calculates the ship actually travelled 700 kilometers then the apparent slip is
difference between engine miles and true miles / engine miles * 100
IE 2.7%
What else can I help you with?
A specimen is placed on a glass?
a cover slip
Who invented slip gauges?
me
How does Hovercraft moves?
A giant motor connected to a propeller to push the hovercraft across the ground or water.
What is a cover slip used for?
A cover slip is a thin square of glass that you put over a specimen on a microscope slide. The cover slip stops the specimen from drying out, and squishes it so that light can get though it easier
Which is the best description of a strike-slip fault?
A fault that forms at a transform boundary
What is meant by propeller slip?
Propeller slip refers to the difference between the theoretical distance a propeller should travel through water and the actual distance it achieves during operation. It is typically expressed as a percentage and arises due to factors like water resistance, cavitation, and inefficiencies in thrust generation. A lower propeller slip indicates a more efficient propeller performance, while a higher slip suggests that the propeller is not effectively converting engine power into forward motion.
How is the length of propeller shaft varied automatically?
via the slip joint.
How to calculate the propeller shaft bearing clearance after measuring the propeller shaft drop of a ship?
Loser loner major wannabee
Why does a propeller shaft have a slip joint?
Slip JointThe propeller shaft has to meet both of the changes i.e., the angular change coming between the gear box and differential and the change in length of the distance between the gear box and differential. The propeller shaft is also not on the same line as the gear box output shaft but it runs to the rear axle at an angle because the level of the rear axle is lower than the gear box.¾ To adjust 'angular motion', universal joints are provided.¾ To adjust for the change in length of the propeller shaft, a slip joint is provided.
What is slip factor?
a slip factor table is provided to calculate the slip factor in centrifugal ... Another well-known expression for calculating the slip factor
How do you calculate resistance box for slip ring motor?
To calculate the resistance for a slip ring motor, there is an equation that must be solved. This is Torque = S/R. S is the slip of the motor and R is the resistance of the motor.
Why does my Yamaha 2 stroke outboard race when I open the throttle under load?
Provided the propeller is submerged low enough in the water, the most likely culprit would be a spun propeller hub. This condition causes the propeller to slip free from the hub, thereby causing the boat to lose propulsion.
How do you calculate propeller distance?
To calculate propeller distance, you typically need to know the diameter of the propeller and the number of revolutions per minute (RPM). The distance covered per revolution can be approximated by the propeller's pitch, which is the distance the propeller would move forward in one complete turn. The formula is: Distance = Pitch × RPM × Time (in hours), giving you the total distance traveled over a specified time period. Adjustments may also be needed for factors like water resistance and efficiency.
How do you calculate propeller immersion?
Propeller immersion is calculated by determining the vertical distance from the waterline to the center of the propeller hub. This is done by measuring the waterline depth and subtracting the hub depth from it. The resulting value indicates how deeply the propeller is submerged, which is crucial for ensuring optimal performance and efficiency in marine vessels. Proper immersion helps prevent cavitation and ensures effective thrust generation.
How do you calculate the percentage of a propellers immersion?
Propeller Immersion : (dA - (xtip X Trim)/Lpp - H) / Dpx100 (in %)Where dA : Draught at A.P (in m)H : Height of lowest tip of propeller bladeDp : Propeller Diameterxtip :x Position of propeller tip from A.P (in m)Lpp : Length Between perpendicular of the ship.================Mosfofa Sowkot ImranNaval ArchitectBangladesh University of Engineering & Technology (BUET)
The two types of propeller in ships?
1) keyed propeller and 2) keyless propeller................... they have further classificaton 1.fixed pitch propeller 2.controllable pitch propeller 3.directional pitch propeller
How do you build a propeller?
How do you build a propeller
