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The tip of the propeller will always be the first point to reach mach 1 as it has the largest speed for any given rpm.
Mach number by definition depends in the speed of sound in air which changes with altitude:
Mach number = speed / speed of sound
To get Mach 1, we need the speed = speed of sound. At sea level, the speed of sound is 330m/s.
The tangential velocity is equal to the angular velocity multiplied by the radius: v=wr
w = 330 / r.
Assuming that your rotor radius is 10m, the angular speed is 330 / 10 = 33 /s
The rotational speed is 33 rotations per second which gives 33*60 = 1980 rpm.
The speed of any point along the blade can be calculated by changing the radius in the above equation.
In conclusion, the tip of a 10m rotor will travel at Mach 1 at sea level.
What else can I help you with?
Can a helicopter fly at Mach 1.5?
No, a helicopter cannot go at the speed of Mach 1.5. It is because, this kind of propulsion can only be achieved through a jet engine. A helicopter's engine cannot achieve that.
How fast is a boeing 787?
A Boeing 787 airplane can travel at the top speed of mach 0.89! Mach 0.89=677 mph The Boeing 787 can reach the top speed of 677 miles per hour!
What do you mean when you say that the Concorde can travel at mach 2?
mach 1 = the speed of sound mach 2 is twice the speed of sound and that's how fast Concorde could travel, well, mach 2.3
How fast can the F 14 Tomcat travel?
It can travel up to Mach 2.34
Can humans travel at Mach 3 speeds?
Humans are not capable of running that fast, no, but they can travel that fast using a vehicle. The current air speed record is Mach 6.7.
What is the speed of an airoplane?
It depends on the size. Small Cessnas can only reach 180 knots Passenger jets can reach 800kph fighter planes can reach Mach 3 The experimental X-16 plane reached Mach 7
How fast does a F15 fighter jet travel?
Mach 2.5
What is the fastest Mach speed a human can travel?
Answer"Mach speed" refers to the speed of sound in earth's atmosphere. Mach 1 is the the speed of sound, Mach 2 is twice that, and so forth. A human can travel at any Mach speed at all. Your question fails to specify whether or not surviving the experience is a requirement. AnswerA human can travel at any Mach speed he/she wants. In orbit, the Space Shuttle travels at speeds well over Mach 30. It is the G-force which causes people to pass out. G-force is caused due to acceleration, not speed. A force of 5G can make a fit person pass out.
How fast does a mustang mach 1 go?
The Mustang Mach I will reach speeds in excess of 105.5-mph. The Mach I will accelerate to 105-mph in 13.13-seconds. It is faster than the SS Camaro.
How fasts does a Concorde travel?
Twice the speed of sound. Mach 2 :)
Is the X-15 faster than a SR-71?
x 15 is faster then the sr71 blackbird who can only reach a speed of mach 3.2 which is 3 times the speed of sound but the x 15 can reach mach 6.72
Are missiles faster than Railgun projectiles?
No. Missiles are pretty fast but Railgun projectiles are much faster than missiles.
