The UB-20 was a high-wing monoplane with a fixed tail wheel landing gear. It is considered the first American construction to have a load-bearing fuselage skin covered with smooth sheet metal. The fuselage structure consisted of seven transverse frames and four T-side members made of duralumin as well as stringers with a U-section. The planking had a thickness of 0.8 mm (0.031 in) and was riveted to the substructure. The wings had a structure consisting of two metal box spars with special drawn T-shaped angle connections. The smooth sheet planking was 0.5 mm (0.020 in) thick. The tanks were in the wing root. The chassis and engine mounts were made from welded chrome-molybdenum steel tubes.[1]
The 20-passenger passenger cabin was 17 ft (5.2 m) x 12 ft 2 in (3.7 m) and was 5 ft 6 in (1.7 m) high. This allowed bulky loads to be transported as well as passengers. The passenger cabin was very comfortably furnished for this time. There were folding seats, a washroom and bunks for night flights. As with most other Burnelli aircraft, the engines were accessible in flight. The machine also had very good single-engine flight characteristics, so the flight altitude could be maintained even with a full payload. Similar to the Remington-Burnelli RB-2, which carried an automobile in the fuselage for advertising purposes, the UB-20 did so in 1934 by moving a Ford automobile under the fuselage between the legs on behalf of the Sun Oil Company.[1][2]
Specifications (UB-20)edit
General characteristics
Crew: 2
Capacity: 16 passengers
Length: 52 ft 0 in (15.85 m)
Wingspan: 90 ft 1 in (27.46 m)
Height: 13 ft (4.0 m)
Powerplant: 2 × Packard 2500 V-12 water-cooled piston engines, 750 hp (560 kW) each
Performance
Maximum speed: 165 mph (266 km/h, 143 kn)
Range: 1,000 mi (1,600 km, 870 nmi)
Service ceiling: 17,000 ft (5,200 m)
Referencesedit
Wikimedia Commons has media related to Uppercu-Burnelli UB-20.
^ abHoward Levy, Richard Riding: Burnelli’s Lifting Fuselages. Aeroplane Monthly, April 1980, S. 172 ff.
^Wood, Richard. "The Contributions of Vincent Justus Burnelli" (PDF). www.meridian-int-res.com. Retrieved 2020-04-03.
December 18, 2023
burnelli, prototype, lifting, body, airliner, designed, vincent, burnelli, built, early, 1930s, view, drawing, from, september, 1930, issue, aero, digestrole, civil, transportmanufacturer, burnellidesigner, vincent, burnellifirst, flight, 1930number, built, 1d. The Burnelli UB 20 was a prototype lifting body airliner designed by Vincent Burnelli and built in the early 1930s UB 203 view drawing of the UB 20 from the September 1930 issue of Aero DigestRole Civil transportManufacturer BurnelliDesigner Vincent BurnelliFirst flight 1930Number built 1Design and development editThe UB 20 was a high wing monoplane with a fixed tail wheel landing gear It is considered the first American construction to have a load bearing fuselage skin covered with smooth sheet metal The fuselage structure consisted of seven transverse frames and four T side members made of duralumin as well as stringers with a U section The planking had a thickness of 0 8 mm 0 031 in and was riveted to the substructure The wings had a structure consisting of two metal box spars with special drawn T shaped angle connections The smooth sheet planking was 0 5 mm 0 020 in thick The tanks were in the wing root The chassis and engine mounts were made from welded chrome molybdenum steel tubes 1 The 20 passenger passenger cabin was 17 ft 5 2 m x 12 ft 2 in 3 7 m and was 5 ft 6 in 1 7 m high This allowed bulky loads to be transported as well as passengers The passenger cabin was very comfortably furnished for this time There were folding seats a washroom and bunks for night flights As with most other Burnelli aircraft the engines were accessible in flight The machine also had very good single engine flight characteristics so the flight altitude could be maintained even with a full payload Similar to the Remington Burnelli RB 2 which carried an automobile in the fuselage for advertising purposes the UB 20 did so in 1934 by moving a Ford automobile under the fuselage between the legs on behalf of the Sun Oil Company 1 2 Specifications UB 20 editGeneral characteristics Crew 2 Capacity 16 passengers Length 52 ft 0 in 15 85 m Wingspan 90 ft 1 in 27 46 m Height 13 ft 4 0 m Powerplant 2 Packard 2500 V 12 water cooled piston engines 750 hp 560 kW eachPerformance Maximum speed 165 mph 266 km h 143 kn Range 1 000 mi 1 600 km 870 nmi Service ceiling 17 000 ft 5 200 m References edit nbsp Wikimedia Commons has media related to Uppercu Burnelli UB 20 a b Howard Levy Richard Riding Burnelli s Lifting Fuselages Aeroplane Monthly April 1980 S 172 ff Wood Richard The Contributions of Vincent Justus Burnelli PDF www meridian int res com Retrieved 2020 04 03 Retrieved from https en wikipedia org w index php title Burnelli UB 20 amp oldid 1112048169, wikipedia, wiki, book, books, library,
