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edit approved Jul 3, 2017 at 4:08
Jeff B
edit approved Jul 3, 2017 at 4:08
Jeff B
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KIAS (knots indicated airspeed) is the speed which is indicated in the cockpit. It's the aircraftsaircraft's relative speed through the surrounding air. This speed is crucial for the flying performance of an aircraft 'causebecause it's the speed which is used to describe the minimum speed and similiarsimilar important airspeeds. GS

GS (groundspeed) describes the aircraftsaircraft's speed relative to the ground. So if an airplane has a groundspeed of 100kts it will fly 100nm per hour relative to the ground. This speed is influenced by the head- and tailwind,tailwind; the GS will be higher than the IAS if the aircraft experienced tailwind and vice versa. To

To calculate time needed to fly a fixed distance you need the GS, as indicated airspeed also describes the speed of the air moving towards you (that meanmeans if you are standing on the ground experiencing 40kts headwind, the speed indicator indicates 40kts (as it's calibrated to IAS)).

KIAS (knots indicated airspeed) is the speed which is indicated in the cockpit. It's the aircrafts relative speed through the surrounding air. This speed is crucial for the flying performance of an aircraft 'cause it's the speed which is used to describe the minimum speed and similiar important airspeeds. GS (groundspeed) describes the aircrafts speed relative to the ground. So if an airplane has a groundspeed of 100kts it will fly 100nm per hour relative to the ground. This speed is influenced by the head- and tailwind, the GS will be higher than the IAS if the aircraft experienced tailwind and vice versa. To calculate time needed to fly a fixed distance you need the GS, as indicated airspeed also describes the speed of the air moving towards you (that mean if you are standing on the ground experiencing 40kts headwind, the speed indicator indicates 40kts (as it's calibrated to IAS)).

KIAS (knots indicated airspeed) is the speed which is indicated in the cockpit. It's the aircraft's relative speed through the surrounding air. This speed is crucial for the flying performance of an aircraft because it's the speed which is used to describe the minimum speed and similar important airspeeds.

GS (groundspeed) describes the aircraft's speed relative to the ground. So if an airplane has a groundspeed of 100kts it will fly 100nm per hour relative to the ground. This speed is influenced by the head- and tailwind; the GS will be higher than the IAS if the aircraft experienced tailwind and vice versa.

To calculate time needed to fly a fixed distance you need the GS, as indicated airspeed also describes the speed of the air moving towards you (that means if you are standing on the ground experiencing 40kts headwind, the speed indicator indicates 40kts (as it's calibrated to IAS)).

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pcfreakxx
pcfreakxx
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KIAS (knots indicated airspeed) is the speed which is indicated in the cockpit. It's the aircrafts relative speed through the surrounding air. This speed is crucial for the flying performance of an aircraft 'cause it's the speed which is used to describe the minimum speed and similiar important airspeeds. GS (groundspeed) describes the aircrafts speed relative to the ground. So if an airplane has a groundspeed of 100kts it will fly 100nm per hour relative to the ground. This speed is influenced by the head- and tailwind, the GS will be higher than the IAS if the aircraft experienced tailwind and vice versa. To calculate time needed to fly a fixed distance you need the GS, as indicated airspeed also describes the speed of the air moving towards you (that mean if you are standing on the ground experiencing 40kts headwind, the speed indicator indicates 40kts (as it's calibrated to IAS)).