@Laurens, what are you talking about? We don’t have GPWS in Infinite Flight.
GPWS uses an array of sensors to determine whether safety limits are being breached and alerts the pilot. These conditions include: being too close to the ground, diving too fast, banking too steeply, and the like. EGPWS has all the capabilities of GPWS and augments it by using a Global Positioning System, or GPS, to provide very accurate information on the exact location of the aircraft. This is then coupled with an extensive terrain database; basically, a map that details how the ground changes in the area.
GPWS had one very serious flaw; it can only monitor the ground directly beneath it. This can be a problem if there is a very sudden change in the terrain and the GPWS cannot provide a prompt enough warning for the pilot to react to. With EGPWS, the system can track the course of the aircraft and see if it is heading towards a mountain or other similar threat. But it is worth noting that EGPWS is only as good as the terrain database that it has. It needs to be up-to-date and contain accurate information. For example: If a very tall building or tower has been recently built or is under construction and the terrain database does not have that information input, the EGPWS may not be able to detect that it is in a collision course with the structure.
In Infinite Flight, I have never heard any alarm when I am too close to the ground, diving too fast, banking too steeply, and the like.