I have another goodie, I think I'll just bury it in this thread for now :)
How about knowing the tension forces at shelter stake out points in response to wind loading? Here's a graph of wind loads in a guyline in response to a 1-2 mph breeze for a guyline that was preloaded to 5.6 lb or so.
The x-axis is time from 0 to 8 minutes and the y-axis is guyline tension (lbf) from 5 at the bottom to 8.75 at the top.
Of course we don't care a lot about breezes, or these low forces. We care about real wind, and real tent stress. The graphs get pretty exciting even at 15mph winds on some of these tents.
When we combine this data with video, wind speed and direction, and real-time monitoring (data transfer from the sensors to a laptop), we get a really, really cool holistic picture of what's going on in a shelter in response to winds. Stay tuned for more - a lot more - in 2012 about this.
We're also using these sensors (combination load cell = force + accelerometer data) to evaluate load stability in backpacks and the real effects of trekking poles on reducing impact forces while walking. Gonna be a fun year :)