118F - max RJ operating temerature

I think that was because the pavement couldn't handle aircraft weights at that heat.

The big issue was that the 737s (and likely others) didn't have performance charts that went over something like 120F. So even at 122, which it was for one of the hottest days, you couldn't legally interpolate off the chart, even though you logically knew what the numbers would likely be.
 
It's not that 118 F is the max temp period, it's that ISA+35C is the max operating temperature (a limitation for the CRJ). Up in DEN, this means it's closer to 103F or so. Nothing to do with op specs, it's purely a Bombardier CRJ limitation.


ISA+ mid 30's is probably where every turbine aircrafts operating limitation is, I think the max I have come across was 40.
 
Highest DA takeoff was either GCN or HND one July in a C-172, think 8000 ft or so. A chirp of stall warning on takeoff always keeps you alert.

Also felt the 'big hand' of ground effect doing a touch and go at Show Low in December - nose forward build up speed and all fine, but all good experience solo.
 
I'm pretty sure if it's anything over 90F, I'd rather ride on a Brasilia, or a -700.
The 170's cool down nicely as well. This is coming from someone who didn't have an apu in LGA sitting at the top of the pier trying to get a push to spot 23 from ground. That was borderline inhumane.
 
Speaking of. I understand fuel is expensive. But run the damn APU if it's hot. Grandpa passing out and having a heart attack in back is an even more expensive proposition than 'excessive' or 'unnecessary' use of the APU.

(Plus, if I'm not comfy, I guarantee the avionics aren't.)
 
I run APU 100% of the time in the summer. It's on during the descent & on for takeoff. In DEN we are supposed to turn them off to fuel the 200, so I'll run it until the fuel man shows up & crank it back up the second he is done. Nobody likes sweaty seats.
 
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