What is the pitch of a propeller?how do you find the distance travelled by ship in one day?

Question

What is the pitch of a propeller?how do you find the distance travelled by ship in one day?

Answer 1

Pitch is the off-axis twist of a propellor.

Distance travelled by a ship?...Check it's Knot Log or measure the distance between starting and ending locations on a chart.

Answer 2

Basic physics :)

Distance = Speed [divided by] time

Answer 3

pitch IS a real figure not theoretical, pitch is calculated in media such as sand. if you take a prop(on a shaft to hold on a single plane) and rotate it 1 revolution it will travel the equal distance ie: 19 pitch would equal 19 inches of travel. in WATER pitch= distance is NOT accurate due to many variations such as water density, temp, etc(slippage). remember pitch is only ONE factor as rake,cupping, propeller shape all affect thrust. many modern props have a progresive pitch(varies along edge from tip to hub)for your distance question others are right speed vs time

Answer 4

The pitch of a prop means how far from vertical is it turned.

The more pitch, the bigger 'bite' of water. Unless it is a new variable pitch prop)

Take the knots per hour and multiply it by 24 hours.  Then multiply by !.15 to get MPH.

Answer 5

pitch is the theoretical distance the propeller moves in one revolution. Its theoretical because there is slippage of the prop in water. For example, a 19" pitch prop on a boat would move 19 "s forward in one revolution, a 24" pitch would move 24"s and so on. Pitch is determined by the root angle of the propeller blade to the hub.

To know how far a ship has traveled in a day you would need to know its average speed for 24 hours and multiply that by 24. If it averaged 10 knots (nautical miles per hour) you would multiply 24 (hrs) by 10 (kts) for a total distance of 240 nautical miles (not counting any current which could increase or decrease the actual total)

Answer 6

pitch is angle of  propelor blades and relates to speed per revolution,  a very fine pitch ie (almost flat) with large blade surface area giving enormous thrust or touque,,and very low speed

or a very heavy pitch ie (acute angle) with smaller surface area  giving quit low thrust

( less tourque )    

but high speed with less acceleration and more cavitation in turns  

a ships distance over water is knots per hour x 24

but distance over the earth surface is calculated by longitude and latitude  or by satilite gps