Simviation Forums

Does anyone have a website that tells the airspeeds for which altitudes on most of the airplanes? Or how ever you refer so you dont go overspeed.

Thanks  ;)

On the dial of most aircraft they have a needle that indicates the mach speed, in jets you have to remain below this. Now you have to realise there is a difference between Indicated Airspeed ( which is what that dial show ) and true airspeed whhich your GPS or FMS should show. Its quiet simple maths. You ground speed increases by approximately 2% of you IAS for every 1000ft. So if you are at 10000 ft and doing 100KTS iAS, then you airspeed will be. 120 kts GS +- wind variations. ie at 10000 ft your airspeed has inreased by 20% of 100kts, i just used easy figures so at 20 000 ft you GS will be 40% of 100kts which is 140 kts and so on.

On the dial of most aircraft they have a needle that indicates the mach speed, in jets you have to remain below this. Now you have to realise there is a difference between Indicated Airspeed ( which is what that dial show ) and true airspeed whhich your GPS or FMS should show. Its quiet simple maths. You ground speed increases by approximately 2% of you IAS for every 1000ft. So if you are at 10000 ft and doing 100KTS iAS, then you airspeed will be. 120 kts GS +- wind variations. ie at 10000 ft your airspeed has inreased by 20% of 100kts, i just used easy figures so at 20 000 ft you GS will be 40% of 100kts which is 140 kts and so on.

or you could set it to show true airspeed in the cockpit panel

On the dial of most aircraft they have a needle that indicates the mach speed, in jets you have to remain below this. Now you have to realise there is a difference between Indicated Airspeed ( which is what that dial show ) and true airspeed whhich your GPS or FMS should show. Its quiet simple maths. You ground speed increases by approximately 2% of you IAS for every 1000ft. So if you are at 10000 ft and doing 100KTS iAS, then you airspeed will be. 120 kts GS +- wind variations. ie at 10000 ft your airspeed has inreased by 20% of 100kts, i just used easy figures so at 20 000 ft you GS will be 40% of 100kts which is 140 kts and so on.

Well that does make since but hard to go with.
I thought there was some website giving speeds for altitudes on all aircrafts  :-?

I have not had a chance to try it yet, but here is a link to a airspeed calculator.

Rod

www.paragonair.com/public/aircraft/calc_TAS.html