ERJ guys, question about FADEC
 

When you are setting up the FADEC, you have 3 thinggies...

T/O mode (which is if you want derated TO or normal TO) right?
REF TO TEMP: what do you put in here? the OAT? the standard temp?
REF A-ICE: What goes in here?

thx! :)

red to temp: you put the ATIS temp(my company). Has to be within 10 C of computer.(if im not wrong)
REF A-ICE: you choose if it is an anti-ice on or anti-ice off takeoff.

I see thx!

just curious why the ref to temp has to be put in, like what is it's use hmph...

thx!

what is avg cruise speed for you guys, .75 or .78?

The information stored in the takeoff data is used by the FADEC to compute the N1TARGET for takeoff. As s10an wrote, the temperature entered usually corresponds to the ATIS temperature. After the engines are started, that temperature must be within 10°C of the T2SYN temperature, which is the synthesized TAT at the fan inlet. If it's not within 10°, the takeoff data is not accepted and an EICAS message will appear so stating. Think of the temperature entry as a manual crosscheck for the FADEC.

It depends on the operator. Mmo is .78 for non-XR aircraft and .80 for XRs. We are typically planned at .76 or .78.

I see... cool!

I see that too now :)

thx guys!