The U.S. Army’s next-generation M1E3 Abrams tank and XM30 infantry fighting vehicle prototypes will arrive at the 1st Cavalry Division at Fort Hood this fall for live testing. The M1E3 replaces the Honeywell AGT-1500 turbine engine with a hybrid power system, adds an unmanned turret with an autoloader, and reduces the crew to three soldiers in an armored capsule inside the hull — away from live ammunition. The XM30, developed by American Rheinme…