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Mach Number Explained: What It Is and Why Pilots Use It

Pilot Institute

Why don’t they use Indicated Airspeed just like the pilots who fly slower aircraft? Key Takeaways Mach number is a dimensionless ratio of true airspeed to local speed of sound. That’s the speed your airspeed indicator shows based on ram air pressure in the pitot tube. Here’s why. Safety is also a factor.

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Delta CRJ-900 Accident In Toronto: Preliminary Report Published

One Mile at a Time

degrees Less than one second before touchdown, the plane had an indicated airspeed of 134 knots, a ground speed of 111 knots, a bank angle of 7.1 degree bank Two seconds before touchdown, the planes bank angle to the right increased, to 5.9 The right wing came to a rest around 215 feet beyond the main wreckage.

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Going Below Minimums

AV Web

In fact, many airlines prohibit their pilots from circling approaches, especially at night. However the indicated airspeed at which you circle is not the same as the true airspeed , and of course the difference increases with altitude. Of course, this expectation should be set well in advance. Straight in is much simpler.

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Trial by Ice

Air Facts

This particular 172 normally cruised at 120 mph indicated airspeed, but with the ice it would barely do 90 mph and that required full throttle! A few minutes later, we heard the center controller clear a Trans Missouri Airlines commuter plane for the VOR Runway 30 approach to Jefferson City. What had happened?

VOR
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Top posts from 2024 at Flight Training Central

Flight Training Central

Understanding and Executing IFR Holding Procedures Maximum holding speeds in knots indicated airspeed (KIAS) have been designated for specific altitude ranges. Bottom line is that its a service that every VFR pilot should take advantage of and it could even be a lifesaver.

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Boom: Is This the Resurrection of Supersonic Travel?

Flying Magazine

The none-too-modest aim of Boom Supersonic is to design and manufacture a supersonic airliner, which it calls Overture. Boomless cruise holds out the possibility of flight speeds 50 percent higher than those of subsonic airliners. Boom has said that Overture will enter airline service in 2030. When XB-1 flew at Mach 1.12

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How Hybrid Air Vehicles Is Making World’s Longest Aircraft Longer

Flying Magazine

READ MORE: Airlines and Pilots Don’t See Eye to Eye on Autonomous Flights Aerodynamic lift and vectored thrust come from two pairs of ducted propellers running on kerosene-powered engines, mounted outside the main hull. But with a top speed of 70 knots indicated airspeed (IAS), its velocity is more comparable to a shipping vessel.