temperature conversion

[medic&cfi]

What's an easy way to convert degrees C to F from the ATIS when you give your PA to the PAX?

 

[banned username 2]

What's an easy way to convert degrees C to F from the ATIS when you give your PA to the PAX?

Double the C, add 32 and subtract 1 for each 5° of C...

Example: 30°C

30°C x 2 = 60 + 32 = 92 - 6 = 86°F

The 6 above comes from 30 / 5 = 6

Example: 12°C

12°C x 2 = 24 + 32 = 56 - 2 = 54°F (actual temp 53.6°F)

Hope this helps...

 

[Bluto]

I use a similar technique. Just remember that there are 5 deg. Celsius for every 9 deg. Fahrenheit. So:

Divide the Celsius value by 5, then multiply that number by 9 and add 32. To use Falcon Capt's example:

30/5 = 6
6 X 9 = 54
54 + 32 = 86 deg. Fahrenheit

the same works in reverse, to go from F - C, except you have to remember to subtract the 32 before you divide.
86-32 = 54
54/9 = 6
6 x 5 = 30 deg. C

 

[ShawnC]

Pull out your handy E-6B, and on the bottem there is a scale. It may not be exact but its close enough for most operations.

 

[avbug]

Guestimate.

Too much math.

 

[P3tarbaby]

Here's what I use:

double C - 10% + 32

ex. 15x2=30
30-3=27 + 32 = 59


to go from F to C, just reverse it:

subtract 32, + 10%, then divide by 2.


works everytime

 

[El Cid Av8or]

I use a method similar to Falcon Capt. I just double the C and add 30. This is accurate to within about 2°F if the C temp is in the "livable" range (0-32°C).

 

[310]

C times 1.8 plus 32 = F



trivia; -40C and -40F are equal

 

[Anaconda]

i use the little chart behind my id that i picked up at the DAL pilot store. geeky, i know, but i get tired of the math...

 

[chperplt]

Just pull the temp out of your butt... Ladies and gents, the current weather at XXX is clear, light winds, and a temp of (insert any temp here) They won't remember what you tell them..

 

[JJJ]

chperplt is right.

If you guess the temp within 10F, no one will know the difference.

 

[dmspilot00]

Here's what I use:

double C - 10% + 32

ex. 15x2=30
30-3=27 + 32 = 59

This is the best way to do it because it is 100% accurate (as long as you don't make a mistake). Mathematically, doubling something and subtracting 10% is the same as multiplying by 1.8 (or 9/5), which is what the conversion formula does.

However it doesn't work quite the same in reverse--you will get an estimate and not the exact conversion.

 

[Green Banana]

I vote C x 2 + 30 = F

Simple and nobody knows if you'r 2 deg off. It will be wrong in 20 minutes andway!

ALOHA

 

[PilotMonkey]

I vote for P3tarbabys technique. That is what I use, its simple and acurate! Guessing is not an entirely bad option but if you know this technique you will be armed for future interview questions!

 

[501261]

Chperlt, is right no one listens, AS LONG AS ITS WITHIN 10 DEGREES F!

I told the boss it was 50 degrees F in Seattle as we took off one day this summer (it was 13C), we landed and it was 79F, "I thought you said it was 50F"!

Just remember the 10 degree rule!!!!!!!!!

 

[tarp]

As a courtesy to our Canadian passengers, I started giving temps in both Celsius and Fahrenheit on flights to/from Montreal. One day, I got in a hurry and just winged a number out. A passenger got off, but couldn't resist and said "You know 6 degrees C is not 45 in Fahrenheit".

Of course I immediately stopped giving a Celsius number out. Let the Canadians figure it out for themselves if they're going to get picky.

 

[tacojet]

math is work

I just hit the conversion page on the FMS, I love technology!