Civil Engineering - Airport Engineering - Discussion
Discussion Forum : Airport Engineering - Section 1 (Q.No. 9)
9.
An aircraft is flying in an atmosphere of 30°C with a speed of 1260 km ph. Its speed is known as
Discussion:
7 comments Page 1 of 1.
Pooj said:
9 years ago
How it is considered? Please explain it.
Devendra singh said:
8 years ago
How sonic speed? please give full description.
(1)
Chhaya said:
8 years ago
Sound speed is 1235 km/h on 20C if speed is around that speed called sonic speed.
Below that Subsonic.
More then That Supersonic.
5 times more then that called hypersonic.
Below that Subsonic.
More then That Supersonic.
5 times more then that called hypersonic.
Tanuj said:
8 years ago
The formula to find the speed of sound in air is as follows:
v = 331m/s + 0.6m/s/C * T.
Here T=30deg.
v=350m/s or 1257 kmph almost equal to 1260kmph. can be said sonic.
v = 331m/s + 0.6m/s/C * T.
Here T=30deg.
v=350m/s or 1257 kmph almost equal to 1260kmph. can be said sonic.
(1)
Aditya said:
6 years ago
Right @Tanuj.
Dipesh said:
3 years ago
Supersonic speed is the rate of travel of an object that exceeds the Speed of sound (Mach 1). For objects travelling in the dry air of a temperature of 20 C (68 F) at sea level, this speed is approximately 343.2 m/s, 1,125 ft/s, 768 mph, 667 knots, or 1,235 km/h.
Speeds greater than five times the speed of sound (Mach 5) are often referred to as hypersonic. Flight during which only some parts of the air surrounding an object, such as the ends of rotor blades, reach supersonic speeds is called transonic.
This occurs typically somewhere between Mach 0.8 and Mach 1.23.
Speeds greater than five times the speed of sound (Mach 5) are often referred to as hypersonic. Flight during which only some parts of the air surrounding an object, such as the ends of rotor blades, reach supersonic speeds is called transonic.
This occurs typically somewhere between Mach 0.8 and Mach 1.23.
(1)
Ramesh said:
2 years ago
Speed of aircraft:- A hypersonic speed exceeds 5 times the speed of sound, often stated as starting at speeds of Mach 5 and above. Supersonic speed is the speed of an aircraft that exceeds the speed of sound (Mach 1).
Sonic speed is the speed of an object that is equal to the speed of sound (Mach 1). Subsonic speed is the speed of an aircraft that less than the speed of sound (Mach 1). For objects traveling in dry air at a temperature of 0 °C(32 °F) at sea level, this speed is approximately 344 m/s (1238.40 km/hr).
Sonic speed is the speed of an object that is equal to the speed of sound (Mach 1). Subsonic speed is the speed of an aircraft that less than the speed of sound (Mach 1). For objects traveling in dry air at a temperature of 0 °C(32 °F) at sea level, this speed is approximately 344 m/s (1238.40 km/hr).
(2)
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