I found the solution. Change from Windows 7 Basic theme to Windows Classic theme at Control Panel\All Control Panel Items\Personalization.
Afternote: Actually, it's a pretty nonideal solution. It works for defining Primary Events, but the main fault tree window sometimes becomes blank when...
I am test driving an app (OpenFTA, http://www.openfta.com) for small Fault Tree Analyses on Windows 7 64-bit. In one of the functions (defining a "Primary Event"), the radio buttons are not visible. Googling with the following search phrase does not yield anything relevant:
open-fta...
I think that the source of my confusion is the word "vertical". Many airborne and space assets can at times be arbitrarily oriented, so vertical by no means has to be defined by the direction of gravity. I take that to be the distinction between the definition above that incorporates the...
OK, it sure seems to me like the direction of gravity is completely removed from the definition. For airborne or space things, the z-axis by no means has to be vertical (if the definition of vertical is tethered to the direction of gravity).
I did run across that...it doesn't really say, but it looks like the yaw axis is also perpendicular to the longitudinal access of the plane. This would mean it is completely unrelated to the direction of gravity (which contradicts previous material I've read elsewhere). Is that correct?
Precise definition of "yaw"
I'm googled "yaw" for the afternoon and there is a detail that I'm not finding. *One* of my understanding of yaw from my readings is that it is the angle between two /vertical/ planes, one containing the velocity of the moving object and the other containing...