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Pondlife
Pondlife
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How are IAS/CAS and TAS used in flight?

couldCould you please explain to me one moment in relation to IAS and TAS. In all books I read I see that the IAS is highlighted as a reference for stall, take-off, landing and other performance items. So, it seems that regardless of the altitude and meteo- conditions I need to just monitor IAS in order to stay in safe margins of flight performance. And TAS is referenced mainly just to flight planning. 

But for example the yellow arc of ASI that indicates caution range is also IAS and in high altitude (where TAS is higher then IAS) it seems pilot can overspeed the aircraft without keeping in mind TAS calculation. So, what is the tactic here - if TAS is only for planning or should be considered during certain phases of flight, etc.? Or only in certain conditions or altitudes.?

Question is about GA with standard instruments. Thank you.

IAS/CAS and TAS in flight

could you please explain to me one moment in relation to IAS and TAS. In all books I read I see that the IAS is highlighted as a reference for stall, take-off, landing and other performance items. So, it seems that regardless of the altitude and meteo- conditions I need to just monitor IAS in order to stay in safe margins of flight performance. And TAS is referenced mainly just to flight planning. But for example the yellow arc of ASI that indicates caution range is also IAS and in high altitude (where TAS is higher then IAS) it seems pilot can overspeed the aircraft without keeping in mind TAS calculation. So, what is the tactic here - if TAS is only for planning or should be considered during certain phases of flight, etc. Or only in certain conditions or altitudes. Question is about GA with standard instruments. Thank you.

How are IAS/CAS and TAS used in flight?

Could you please explain to me one moment in relation to IAS and TAS. In all books I read I see that the IAS is highlighted as a reference for stall, take-off, landing and other performance items. So, it seems that regardless of the altitude and meteo- conditions I need to just monitor IAS in order to stay in safe margins of flight performance. And TAS is referenced mainly just to flight planning. 

But for example the yellow arc of ASI that indicates caution range is also IAS and in high altitude (where TAS is higher then IAS) it seems pilot can overspeed the aircraft without keeping in mind TAS calculation. So, what is the tactic here - if TAS is only for planning or should be considered during certain phases of flight, etc.? Or only in certain conditions or altitudes?

Question is about GA with standard instruments.

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Sergey
Sergey
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IAS/CAS and TAS in flight

could you please explain to me one moment in relation to IAS and TAS. In all books I read I see that the IAS is highlighted as a reference for stall, take-off, landing and other performance items. So, it seems that regardless of the altitude and meteo- conditions I need to just monitor IAS in order to stay in safe margins of flight performance. And TAS is referenced mainly just to flight planning. But for example the yellow arc of ASI that indicates caution range is also IAS and in high altitude (where TAS is higher then IAS) it seems pilot can overspeed the aircraft without keeping in mind TAS calculation. So, what is the tactic here - if TAS is only for planning or should be considered during certain phases of flight, etc. Or only in certain conditions or altitudes. Question is about GA with standard instruments. Thank you.