Geoff- if you look at the graph in the appendix of that paper, you will see that the temperature vs humidity effect is acconted for and when you extrapolate back to 0% relative humidity you can see that the maximum 45 minute tolerable temp is a tad over 160 degrees. And I'd be hard pressed to believe that they would subject the officers to something they had not tested on the enlisted men first. Remember that an internal temp of 165 degrees is well done for a piece of meat, which of course is what we are. To say nothing about heat stroke, which is classified as a medical emergency and occurs when your core temperature exceeds 105 degrees. Sorry, I ain't buyin.