ISA +35 in DEN

[resetjet]

I've only been close to ISA+35 once, Wichita last year. OAT was 124F

 

[pipers]

only time I've had ISA+35 was in LAS....sat it out for a few hours.

 

[CMRJetDriver]

ISA is 15 degrees at sea level and decreases 2 degrees every 1000 feet. Denver is 5431 feet above sea level. The easy way is to set the altimeter to 29.92 and read what it says. If it's 5431 then use 5500. At 5500 feet ISA is 4 degrees. (15 - 11 = 4). Your temperature limit for take off would be 39 degrees. ISA + 35. (4 + 35 = 39).

 

[Mr. Johnson]

Don't matter where you are...ISA+35 is too dang hot to sit in an airplane!

 

[Stifler's Mom]

Isn't ISA +35 the max to fly with a deferred pack or inop APU?

 

[asayankee]

Isn't ISA +35 the max to fly with a deferred pack or inop APU?

Nope...For most operators >30C without APU or deferred pack is "not normally dispatched". ISA +35C is an actual aircraft limitation for T/O.

 

[Abernathy]

Isn't ISA +35 the max to fly with a deferred pack or inop APU?

That's what NOT to say when you blow that question on an oral

 

[goahead]

Isn't ISA +35 the max to fly with a deferred pack or inop APU?

Yea that's it man you got it!!!!

 

[trip]

Can anyone explain why it is ISA+35? it seems pretty standard among manufactures. If I recall in the EMB120 it was the EFIS tubes as the non-EFIS models had a higher max temp?

 

[AntiJedi]

If I recall in the EMB120 it was the EFIS tubes as the non-EFIS models had a higher max temp?

EFIS, ISA+35. Non-EFIS, +38. It has to do with the cooling of the tubes.