April 9, 200818 yr I have a couple of questions which i hope you don't mind asking?1) Is there a device i can use to assume the takeoff temperature on the takeoff ref page?2) Whats the difference between pack 2+3 off and 1+3 off, on start up?3) When i land the brake temperature increases, but what does 3 mean, 300 degrees?Thank you James
April 9, 200818 yr 1) Program called Topcat - http://topcat.ofplan.net/?page=download. It's free, but has a nag screen if you don't pay. Phil Brown
April 9, 200818 yr 1) TOPCAT is an excellent tool...I use it for EVERY TO/LDG in the 744.2) - Q your input is needed here I think??3) Brake TemperatureIndicates a relative value of wheel brake temperature: Steve Bell "Wise men talk because they have something to say. Fools talk because they have to say something." - Plato (latterly attributed to Saul Bellow) The most useful tool on the AVSIM Fora ... 'Mark forum as read'
April 10, 200818 yr Commercial Member 2) Whats the difference between pack 2+3 off and 1+3 off, on start up?This all depends on the company you fly with and there SOP. You would also use 1+3 off on a pack to APU departure. Maybe it has something to do with a possible ISLN valve fault.Rob Rob Prest
April 10, 200818 yr Commercial Member Just got home and ran a test. with APU running PACKS 2+3 off. If you lost the Left ISLN valve for whatever reason you would also lose pack 1.If you use PACKS 1+3 off you can lose both ISLN Valves and still have the Apu supplying PACK 2Rob Rob Prest
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