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What do the numbers on an RC plane prop mean?
What do the numbers mean? The first number is the prop diameter. The second number is the prop pitch. This is the theoretical distance that the prop would move forward if rotated one revolution. If you were to mount your prop on a shaft and submerse it in jello, you could see this in action... A 10x6 prop is 10" in diameter, and in theory, the prop will move forward 6" in one revolution. The pitch can be thought of similar to the transmission in your car. A low pitch (like on a 10x4) is like low gear on your car--lower speed, but more power. A high pitch is more like a high gear--higher speed, but it takes longer to get to top speed, and you may lose power on the verticals.
How fast does an 8 hp evenrude go?
about 10 to 15 miles per hour depending on pitch of prop i believe but don't quote me
What is the correct prop pitch for a 7 and a half hsp Mercury 5699828 It has a 7 pitch 3 blade on it but seems to spin out?
Usually pitch is set according to horsepower AND boat size. You could try a taller prop, say a 10 pitch, but you are going to lose RPMs because to engine is cutting through more water. It's a give and take situation. If you can get the boat to a good prop shop near the water, most will let you try different props until you find the one you like.
What is the proper prop pitch for 1976 85 hp mercury?
21
Evinrude 25 horsepower outboard prop slips while under a load. Or could it be cavitation?
Sometimes the center of the prop breaks loose and slips or the splines get stripped. Also check to make sure you have the correct pitch prop for that motor and it is fastened securely.
How can you make your 50HP Tohatsu outboard go faster?
change the prop pitch nah done that. its to do with the engine.
What is the instrument that indicates engine power for an aircraft with a fixed-pitch propeller?
That would be the RPM gauge. On an aircraft with variable pitch prop it would be the manifold pressure gauge.
Bayliner 1750 capri with 135 mercruiser which i use it for water skiing what is the best type of prop to run for punch out of the water with out loosing to much speed?
Best prop type is prop with ventilation holes and the pitch should be as low as possible. Some people likes four blade props for water skiing.
What happens when a front row is sent off on yellow card?
They usually try and keep the same 14 players on the pitch at first but when there is a scrum they take a player off the pitch and put on their replacement prop
What is the max speed for 1999 125 HP Mercury outboard motor?
The maximum speed of the 125 mercury is dependent on the boat it is on. It can only push some boats 2mph, while other boats that are light and have a small wetted surface can run 60. To find the theoretical maximum, you should find the maximum pitch prop offered for that engine. The maximum pitch prop I can find for that engine is a 24p. The gear ratio for the lower unit is 2.07:1 . If you can turn the 24p prop at the maximum recommended rpm 5250, the fastest the boat could possibly run is 57.1 mph. The propeller is not 100% efficient, so you should factor in the slip of the propeller. With the inefficiency (slip) factored in, the boat would be more likely to run 55mph. If you can find a higher pitch prop for that engine, you can get it to run faster speeds. A 27p prop would run about 60mph.
What are the release dates for Harry and the Hendersons - 1991 Pitch Pitch Pitch 3-10?
Harry and the Hendersons - 1991 Pitch Pitch Pitch 3-10 was released on: USA: 30 January 1993
How do propellers slow things down?
The propeller on an outboard engine, depending on size and boat application, can either "slow things down", or "speed things up". The determining factor here is prop diameter, and blade pitch, mainly the latter. A 10"x 21" prop for example, has a diameter of 10" ( from blade tip to tip ), and a pitch ( angle of blade opposed to the hub ), of 21 degrees. In theory, the above example would propel the craft 21" each revolution of the propeller. A prop of a higher pitch, 20in and up, would be used in a lighter boat or speed hull application. Also, in higher pitch props, you generally see more cupping in the blades, causing the prop to move more water and thereby causing more resistance. This higher pitch, together with additional cupping, has the effect of causing the engine to work harder in order to achieve and hold a specific speed, or rpm range. On the other end of the equasion, a lower pitch prop, say 10 x 15, would theoretically move the craft only 15in every prop revolution. The blades on a lower pitch propeller are not swept back on the hub, ( when viewed from a side angle ) as they are on the higher pitch props. On some props the blades look to be standing straight up off the hub, offering less resistance as they rotate in the water. These lower pitch propellers are a good choice on heavy and work boat applications. The lower pitch with less cup allows the engine to turn up much easier, and to higher rpm ranges. The important point to keep in mind here is that all engines are designed to run within a specified rpm range. Install the correct size prop that will allow your engine to run within the parameters of this range. ==Another stab at it...== Since the question was put in the Airplanes and Aircraft category, we might look specifically at aircraft propellers. There are two ways an aircraft propeller can slow things down; one is by changing the pitch (angle of the blade) thereby causing the engine to spin faster or slower, and the other is by reducing or eliminating power from the engine, thereby causing the propeller to act as a windmill. In both of these examples (assuming a constant power setting or loss of engine power altogether), the energy needed to spin the powerless (or reduced power) propeller comes from the energy of the moving aircraft and therefore translates to slower airspeed. Hope that helps.
