Now, let us see some of the specifications and performances of these new models. The USD9-A, being the redesigned and improved De Haviland 4, may be given a place as a latest model. It is a two-place bombing plane of the tractor biplane type, equipped with a Liberty 12 engine and weighing 4,872 pounds, loaded with fuel, oil, guns, and bombs, and with its crew aboard. With this weight its performance record in the official tests at Wilbur Wright Field in Dayton was as follows: Speed (miles per hour): At ground 121.5. At 6,500 feet 118.5. At 10,000 feet 115.5. At 15,000 feet 95.5. Climb: To 6,500 feet, time 11 minutes 40 seconds. To 10,000 feet, time 19 minutes 30 seconds. To 15,000 feet, time 49 minutes. Service ceilings (feet) 14,400. The Lepere C-11, a tractor biplane equipped with a Liberty 12 engine, Packard make, weighing with its load aboard 3,655 pounds, performed as follows in the tests at the Wilbur Wright Field: Speed (miles per hour): At ground 136. At 6,500 feet 130. At 10,000 feet 127. At 16,000 feet 118. Climb: To 6,500 feet, time 6 minutes. To 10,000 feet, time 10 minutes 35 seconds. To 15,000 feet, time 19 minutes 15 seconds. Service ceiling (feet) 21,000. Endurance at full speed at ground (hours) 2.5. The Lepere carries two Marlin guns synchronized with the propeller and operated by the pilot and two Lewis guns operated by the observer. A total of 1,720 rounds of ammunition is carried. The Loening monoplane, a tractor airplane equipped with an Hispano-Suiza 300-horsepower engine and representing, loaded, a gross weight of 2,680 pounds, its military load including two Marlin and two Lewis machine guns, performed as follows at the Wilbur Wright Field: Speed (miles per hour): At ground 143.5. At 6,500 feet 138.2. At 10,000 feet 135. At 15,000 feet 127.6. Climb: To 6,500 feet, time 5 minutes 12 seconds. To 10,000 feet, time 9 minutes 12 seconds. To 15,000 feet, time 18 minutes 24 seconds. Service ceiling (feet) 18,500. The Ordnance Scout with a Le Rhone 80-horsepower engine, weighing, loaded, 1,117 pounds, is an advanced training plane. In its official test at Wilbur Wright Field it performed as follows: