GPWS / TAWS

[Hippo]

I have looked at these in the NATOPS and remain confused:

 

Is one is an upgrade of the other, so you only ever get on or the other on one aircraft?

 

Is one a backup of the other, so you get both on the same aircraft?

 

From the NATOPS both apparently can be accessed from the HSI - DATA - A/C page.

 

The GPWS option is reached by pressing MENU, HSI, DATA, A/C

The TAWS option is reached, by pressing MENU-HSI-DATA-A/C

On our F-18 the TAWS option is available in the A/C page, but there is no GPWS option.

 

??

[muehlema]

Early access ;)