Simple Question

[Olendirk]

Hey!

I have a simple question: When I take the descent diagramm of the 737 and I enter it without the wind correction, why do I get the NAM? What is the NAM?

Thanks for your help!

OD

[peb]

NAM = Nautical Air Miles


Formula:

NAM NGM
----- = ------
TAS G/S


:ok:

[Olendirk]

Thanks!
but could you give me an explanation?

[peb]

NAM = NGM ( if there is no wind at all )
If you have cover a distance of 100 Nm and takes you 60 mins to cover that distance. Having a head wind of 30 kts. You will cover 130 NAM. And opposite with tail wind.



Am I right?


:ok:

[subsidence]

hello

yes, you`re right.
Another way to explain NAM/NGM:

NAM is the distance travelled with your TAS

NGM is the distance travelled with your GS


regards suby

[Send Clowns]

Note - if the formulas are confusing you, remember that NAM and TAS are connected, and NGM and G/S are connected by way of the time taken via the speed / time / distance equation. The time must be the same in both cases.