I was printing off a range card the other day, & noticed that the card gave a higher correction for a higher temp. ie. given the same 1000' elevation with temps of 40/70/90 deg. the correction went from 23.9 @ 40* UP to 24.3 @ 90*. This seemed backwards, so I did the same with their trajectory calculator, using a given pressure, & changing only the temp, & it showed a lower(flatter) trajectory. When I contacted them about it they replied that, the card was right, as the temp goes up with a given density the drag , & mach also goes up. They continued to say that it is unusual to see a density stay the same with an increasing temp. I agree with this as everything I've read tells me that air density goes down with a higher temp. Can someone please explain?