PPRuNe Forums - Simple Question

PPRuNe Forums (https://www.pprune.org/)

- Professional Pilot Training (includes ground studies) (https://www.pprune.org/professional-pilot-training-includes-ground-studies-14/)

- - Simple Question (https://www.pprune.org/professional-pilot-training-includes-ground-studies/127128-simple-question.html)

Olendirk

19th Apr 2004 08:21

Simple Question

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	19th Apr 2004 08:40

NAM = Nautical Air Miles

Formula:

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

:ok:

Olendirk

19th Apr 2004 08:47

Thanks!
but could you give me an explanation?

peb	19th Apr 2004 13:43

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

19th Apr 2004 16:03

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

19th Apr 2004 22:00

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.

All times are GMT. The time now is 09:01.