Narrative:

While taking off in sydney at 648;000 [pounds] I had briefed and loaded max thrust with nadp 1 for a thrust reduction at 1500 feet vs. 800 feet.upon loading the take off data from the new ACARS 2 version I knew to check the nadp 1 as it defaults to nadp 2. I also changed the numbers to max weight as briefed. What I didn't realize is it defaults to a reduced take off by putting in a reduced thrust temperature.I realize I am to check this but all of our attention was diverted to burning fuel as we left the gate at 649.5. We were watching closely to make sure we could burn down to take off weight prior to reaching the runway.upon applying take off thrust the captain noticed it was reduced thrust and manually set thrust to our max take off N1 setting.this needs to be brought to the attention of the 777 crews; as none of us were aware that the new ACARS 2 version did this. I would venture the majority of the pilots are the same; as we received no training on this as is usual now at [our airline]. This lack of training on new systems and procedures is dangerous. There is always ambiguity in the cockpit on what system we have and how to use it.it's also bad business; as one accident/incident will negate any cost saved by not paying for proper training.no sops or fars were intentionally violated.

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Original NASA ASRS Text

Title: A B777 First Officer addressed unanticipated and untrained for interaction between programming of NADP (Noise Abatement Departure Procedure) thrust settings and modifications to the ACARS software that caused a default to a reduced thrust takeoff setting when the intent was to utilize max thrust for a MTOGW takeoff.

Narrative: While taking off in Sydney at 648;000 [pounds] I had briefed and loaded max thrust with NADP 1 for a thrust reduction at 1500 feet vs. 800 feet.Upon loading the take off data from the new ACARS 2 version I knew to check the NADP 1 as it defaults to NADP 2. I also changed the numbers to max weight as briefed. What I didn't realize is it defaults to a reduced take off by putting in a reduced thrust temperature.I realize I am to check this but all of our attention was diverted to burning fuel as we left the gate at 649.5. We were watching closely to make sure we could burn down to take off weight prior to reaching the runway.Upon applying take off thrust the Captain noticed it was reduced thrust and manually set thrust to our max take off N1 setting.This needs to be brought to the attention of the 777 crews; as none of us were aware that the new ACARS 2 version did this. I would venture the majority of the pilots are the same; as we received no training on this as is usual now at [our airline]. This lack of training on new systems and procedures is dangerous. There is always ambiguity in the cockpit on what system we have and how to use it.It's also bad business; as one accident/incident will negate any cost saved by not paying for proper training.No SOPs or FARs were intentionally violated.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.