B-1 Rockwell

 is a Tier 4 Tank that upgrades from Trailblazer and Accelerator at level 45.

Design
The looks similar to the Trailblazer, but rather than having the Propeller's thrusters, it has the Accelerator's. In other words, it gains two more thrusters compared to Trailblazer that somewhat resemble a Skimmer bullet's thrusters.

Technical
Like the Accelerator, its boosters fire in alternating pairs giving the tank a more consistent speed boost.

Trivia

 * This tank is named after the Rockwell B-1 aircraft, a supersonic heavy bomber with the codename "Lancer".