I present Camble! one of the best-known trackers before the great war......well, at least before he and his crew disappeared during their last tracking voyage in search of more energon.
His Alt-mode is an S-2 Tracker, mostly known as tracking and bombing planes along the coastal waters.
Camble's ability to sense and seek out energon and signals made him one of the best mechs to rely on, whether it was for finding an energon source or finding someone in particular.
He'd always be near his ship "The Green Comet".... he's never scene without; some say even when he came online... some mechs speculate his ship might even be another mech in their alt form; at least from the number of times he's been seen talking to his ship.