The Rohrbach Ro IV, also known as the Beardmore BeRo.2 Inverness was an all-metal monoplaneflying boat of the 1920s. Designed by the German company Rohrbach for the British Royal Air Force, two were ordered, one completed by Rohrbach's Danish subsidiary and the second by the British licensees, William Beardmore and Company, but the type performed poorly during testing and was abandoned.
Dr.-Ing. Adolf Rohrbach, formerly of Zeppelin-Staaken, set up Rohrbach Metall-Flugzeugbau in 1922 to design and build large all-metal aircraft, with stressed skin structures, unusual for the time. In order to evade the restrictions of the Treaty of Versailles, Rohrbach set up a Danish subsidiary, Rohrbach Metal-Aeroplan Co A/S to assemble aircraft.[1]
The Scottish shipbuilding company William Beardmore and Company of Dalmuir agreed a license manufacturing deal with Rohrbach in 1924.[2] The British Air Ministry was interested in the use of metal hulls for flying boats, and therefore drew up Specification 20/24 for an all-metal monoplane flying boat to compare with the wooden biplanes in service with the Royal Air Force.[3] In November 1924 Beardmore received an order for two Rorhbach flying boats,[3] based on Rohrbach's Ro III but powered by British Napier Lion engines.[4]
The Ro IV, known as the BeRo.2 Inverness by Beardmore, was a twin-engined high-winged cantilevermonoplane, constructed mainly of duralumin. Its two engines were mounted in streamlined tractor nacelles above the wing centre section; the slab-sided fuselage accommodated the crew of four.[5][6]
In order to speed delivery, the first aircraft serial numberN183 was assembled in Rohrbach's Copenhagen factory from parts made in Rohrbach's main works in Berlin. It was delivered to the Marine Aircraft Experimental Establishment at Felixstowe on 18 September 1925, but testing showed the aircraft had poor handling both in the air and on the water, and poor performance, and it was destroyed during strength testing in May 1927.[5][7]
The second prototype, assembled by Beardmore from Berlin-built parts, did not fly until 30 November 1928. While it incorporated a revised fuel and cooling system and a modified rudder, N184 still demonstrated poor performance. The programme was stopped in April 1929, and the prototype scrapped.[8]
"All-Metal Flying Boats For Britain". Flight. Vol. XVI, no. 812. 17 July 1924. pp. 449–451. Retrieved 4 January 2024.
Donald, David, ed. (1997). The Encyclopedia of World Aircraft. Leicester, UK: Blitz Editions. ISBN1-85605-375-X.
Jarrett, Philip (February 1990). "Beardmore's heavy metal monsters". Aeroplane Monthly. Vol. 18, no. 2. pp. 74–79. ISSN 0143-7240.
London, Peter (2003). British Flying Boats. Stroud, UK: Sutton Publishing. ISBN0-7509-2695-3.
"The Beardmore-Rohrbach "Inverness" Flying Boat". Flight. Vol. XVII, no. 874. 24 September 1925. pp. 617–618. Retrieved 4 January 2024.
Stroud, John (January 1991). "Wings of Peace". Aeroplane Monthly. Vol. 19, no. 1. pp. 50–54. ISSN 0143-7240.
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"Rohrbach Ro IV" "Inverness".
March 17, 2024
rohrbach, also, known, beardmore, bero, inverness, metal, monoplane, flying, boat, 1920s, designed, german, company, rohrbach, british, royal, force, were, ordered, completed, rohrbach, danish, subsidiary, second, british, licensees, william, beardmore, compan. The Rohrbach Ro IV also known as the Beardmore BeRo 2 Inverness was an all metal monoplane flying boat of the 1920s Designed by the German company Rohrbach for the British Royal Air Force two were ordered one completed by Rohrbach s Danish subsidiary and the second by the British licensees William Beardmore and Company but the type performed poorly during testing and was abandoned Ro IVBeardmore InvernessRole Flying boatNational origin GermanyManufacturer Rohrbach William Beardmore and CompanyFirst flight 1925Status PrototypePrimary user Marine Aircraft Experimental EstablishmentNumber built 2Developed from Rohrbach Ro III Contents 1 Design and development 2 Specifications N 184 3 See also 4 Notes 5 References 6 External linksDesign and development editDr Ing Adolf Rohrbach formerly of Zeppelin Staaken set up Rohrbach Metall Flugzeugbau in 1922 to design and build large all metal aircraft with stressed skin structures unusual for the time In order to evade the restrictions of the Treaty of Versailles Rohrbach set up a Danish subsidiary Rohrbach Metal Aeroplan Co A S to assemble aircraft 1 The Scottish shipbuilding company William Beardmore and Company of Dalmuir agreed a license manufacturing deal with Rohrbach in 1924 2 The British Air Ministry was interested in the use of metal hulls for flying boats and therefore drew up Specification 20 24 for an all metal monoplane flying boat to compare with the wooden biplanes in service with the Royal Air Force 3 In November 1924 Beardmore received an order for two Rorhbach flying boats 3 based on Rohrbach s Ro III but powered by British Napier Lion engines 4 The Ro IV known as the BeRo 2 Inverness by Beardmore was a twin engined high winged cantilever monoplane constructed mainly of duralumin Its two engines were mounted in streamlined tractor nacelles above the wing centre section the slab sided fuselage accommodated the crew of four 5 6 In order to speed delivery the first aircraft serial number N183 was assembled in Rohrbach s Copenhagen factory from parts made in Rohrbach s main works in Berlin It was delivered to the Marine Aircraft Experimental Establishment at Felixstowe on 18 September 1925 but testing showed the aircraft had poor handling both in the air and on the water and poor performance and it was destroyed during strength testing in May 1927 5 7 The second prototype assembled by Beardmore from Berlin built parts did not fly until 30 November 1928 While it incorporated a revised fuel and cooling system and a modified rudder N184 still demonstrated poor performance The programme was stopped in April 1929 and the prototype scrapped 8 Specifications N 184 editData from British Flying Boats 9 General characteristicsLength 56 ft 11 in 17 35 m Wingspan 94 ft 0 in 28 65 m Height 16 ft 3 in 4 95 m Wing area 760 7 sq ft 70 67 m2 Empty weight 10 580 lb 4 799 kg Max takeoff weight 13 160 lb 5 969 kg Powerplant 2 Napier Lion V W12 engine 450 hp 340 kW eachPerformance Maximum speed 110 mph 180 km h 96 kn Endurance 4 hr 30 min estimated Service ceiling 8 750 ft 2 670 m Rate of climb 550 ft min 2 8 m s See also editBeardmore InflexibleRelated lists List of flying boats and floatplanesNotes edit Stroud Aeroplane Monthly January 1991 p 51 Flight 17 July 1924 p 449 a b London 2003 p 95 Donald 1997 p 783 a b London 2003 pp 95 96 Flight 24 September 1925 pp 617 618 Flight 24 September 1925 p 617 London 2003 p 66 London 2003 pp 260 261 References edit All Metal Flying Boats For Britain Flight Vol XVI no 812 17 July 1924 pp 449 451 Retrieved 4 January 2024 Donald David ed 1997 The Encyclopedia of World Aircraft Leicester UK Blitz Editions ISBN 1 85605 375 X Jarrett Philip February 1990 Beardmore s heavy metal monsters Aeroplane Monthly Vol 18 no 2 pp 74 79 ISSN 0143 7240 London Peter 2003 British Flying Boats Stroud UK Sutton Publishing ISBN 0 7509 2695 3 The Beardmore Rohrbach Inverness Flying Boat Flight Vol XVII no 874 24 September 1925 pp 617 618 Retrieved 4 January 2024 Stroud John January 1991 Wings of Peace Aeroplane Monthly Vol 19 no 1 pp 50 54 ISSN 0143 7240 External links edit nbsp Wikimedia Commons has media related to Rohrbach Ro IV Rohrbach Ro IV Inverness Retrieved from https en wikipedia org w index php title Rohrbach Ro IV amp oldid 1193644771, wikipedia, wiki, book, books, library,
