Engine Model: 25AL-1000. Manufacturer Name: 25AL-1000. Government Designation: XLR1-AJ-1. Designer: Aerojet. Developed in: May 1942. Application: A-20 ATO. Propellants: Nitric acid/Amine. Thrust(sl): 4.410 kN (991 lbf). Burn time: 25 sec. Mass Engine: 109 kg (240 lb). Diameter: 0.90 m (2.95 ft). Length: 1.40 m (4.50 ft). Chambers: 1. Chamber Pressure: 20.00 bar. Country: USA. First Flight: 1944. Development begun May 1942. Three spherical propellant tanks, fixed installation, single uncooled thrust chamber, pressure fed, permanent installed in tail cone of engine nacelle. Production version of GALCIT unit.