What was the name of the Decepticon that got brought back in Transformers 2?

Okay,I watched the movie Transformer 2 and it was great!But about half way threw the movie they brought back a Decepticon to life in that museum place that was a jet or something like that and was really old and one of the first Transformers to help them translate the image's in Sam's head.Now I forgot it while watching it on the day it got out and since then I've bean wondering and wondering what it was,so if anyone who know what it is please answer.Thanks!|||it was a stealth bomber named jetfire.|||his name is jetfire...he was a decepticon but then he turned to an autobot|||Its Jetfire. The latest addition into the world...of the Transformers.|||yeah.. he was really old.. and he Sam and Michala, yeah his name is Jet Fire. i loved him, he was my favorite!|||you didn't pay attention he introduced himself to Sam, Mikaela and the other Autobots