THE STORY:
During the war of 2534, the Global Alliance, a Federal Republic and the Global Sanctuary, a communist state were at the height of war. Neither side could gain the advantage. Until, on March 13th 2537, Global Alliance scientists discovered a new way to fuel ships. At once, the president of the Global Alliance ordered the Tri-Intercepters to be massed produced. Before the scientific breakthrough, the Tri-intercepters were a failed design that needed more power than it could hold, but now, they were everywhere. After months of fighting, the 32nd legion of the Global Alliance, with the help of the Tri-interceptors, finally pushed the Global Sanctuary out of Olin, a major weapons factory. After this victory, new tanks, fighters and guns were massed produced and the Global Alliance won the war in 2544

The Tri-intercepter has one Huge engine, to activate the other 3, hit AG1 and throttle like normal.
If you only want to use the one giant engine, don’t hit AG1 and fly normally

NOTE: you will need the 3 extra engines to take off.