0
Not sure about a rotary lawn mower, but I always thought that lawn mowers had a fixed blade speed. If yours is adjustable, I would say that a faster speed would make a smoother cut.
Faster speed will indeed give a smoother cut, BUT if this is achieved by running the engine faster, ( the only option, if the blade is mounted directly on the crankshaft end ) then more stress develops and engine life shortens.
This will become acutely apparent if the blade tip strikes a solid object, when the excessive speed will cause much greater damage than if the blade had been running at the manufacturer's designated rpm.
Consequently, the cut will probably then become somewhat ragged due to distortion and vibration, and the engine will eventually self destruct.
So, better or not ? Your call.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Which is the maximum speed Mazda r-100 rotary 110HP 1969?
The maximum speed of a 1969 Mazda R-100, 100 horsepower car is 112 miles per hour.
What is the phenomenon called that limits a helicopter's maximum speed?
Retreating blade stall.
Which was the maximum speed of Mazda RX3 wagon rotary 90HP 1973?
The Mazda RX-3 was produced from the years 1971 to 1978. The maximum speed of a 1973 Mazda RX-3 wagon rotary 90 HP is around one hundred thirteen miles per hour.
How fast should a lawnmower blade spin?
Most modern mowers are of the rotary type. Rotary mower engines are all made to spin at 3,600 revs per minute when not under load. During cutting, the rpm drops to between 2800 and 3300. There is a simple wire-based device for measuring rpm on a running mower, which all mower specialists would own.The other speed linked with your question could be that concerning the velocity of the blade tip as it revolves. As the centre of the blade is spinning at 3600 rpm, an 18 inch blade tip will travel through the air at one speed a 21 inch at a faster speed and so on. Rotary mower blade bars are made up to a max of 24 inches.
How long can a burst at maximum speed last?
A burst at maximum speed can last anywhere from a few seconds to several minutes. The actual duration varies greatly on the circumstances and the equipment.
What are the principle used in helicopter?
Helicopters are sometimes referred to as 'rotary wing' machines, and that gives the clue to how they operate. The rotating blade is of aerofoil section; as aircraft wings are; and the rotary wing develops lift due to its speed through the air. Helicopter blades also have a greater 'attack angle' than do ordinary aircraft wings, and this gives them some of their lift, but at the expense of efficiency. Also, a helicopter blade is travelling through the wake of the previous blade, and this affects the efficiency, and the noise! And, it is only toward the tip of the blade that any decent lift is developed, once again losing some efficiency. For the inner part of the blade has a much lesser speed than the tip. [Whereas an aircraft wing is moving through smooth laminar air. And is all moving at the same speed.]
Best blade angle?
the best angle is "45 degree" because the air speed coming out of the fan is giving by this equation V=v.tanθ were : V: air speed,,, v: is the blades speed and we got the maximum of the speed by making the angle 45
In a wind turbine - does increasing the blade length or decreasing the blade length increases the speed of the turbine?
Decreasing the blade length will increase the rotation speed, and thus the turbine speed ( for constant wind speed ).
Maximum speed of a 747?
The maximum speed of a 747 is Mach 0.92.
What is the maximum speed of a MCA?
The maximum speed of MCA is 10 MHz
What has the author P V Crooks written?
P. V. Crooks has written: 'Preliminary china clay tests on rotary cascade blade surfaces' 'Low speed tests on three aerofoil cascades designed for prescribed surface velocity distributions'
What is the difference between cruise speed and maximum speed?
cruise speed is when you're cruising, maximum speed is when your going hella fast
