Gas Turbine Engines
Honeywell AGT1500 gas turbine engines power the M1 Abrams. Compared to reciprocating engines, gas turbine engines have a better power-to-weight ratio meaning they deliver more power with less weight. At one point in the early 1970s, engineers even converted the AGT1500 into a flight-weight turboshaft for helicopters called the PLT27, which was ultimately scrapped. The Lycoming Turbine Engine Division designed and produced the AGT1500 at the Stratford Army Engine Plant. After the Stratford Plant shut down, production shifted to Anniston Army Depot in Anniston, Alabama, in 1995.