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 Propeller
Distance Run by Propeller = Picth X Total Engine Revolutions per day / 1852
I wish this can help those who are in need of this formula.
Rgds
Ahmad
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%
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 Propeller
Distance Run by Propeller = Picth X Total Engine Revolutions per day / 1852
I wish this can help those who are in need of this formula.
Rgds
Ahmad
Propeller constant = Propeller pitch / 1853.2
a cover slip
me
A giant motor connected to a propeller to push the hovercraft across the ground or water.
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
A fault that forms at a transform boundary
via the slip joint.
Loser loner major wannabee
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.
how to calculate resistance box for slipring motors
a slip factor table is provided to calculate the slip factor in centrifugal ... Another well-known expression for calculating the slip factor
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.
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)
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
A propeller airplane is, simply put, any airplane which uses a propeller for propulsion.
A propeller is a rotating wing.
if you are talking about the propeller in the mission, it is on the dock