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  • Bristol Type 171 Sycamore

    1947







    Model



    Type 171 Sycamore
    Type 171 Sycamore first flew 27 Jul 1947 against spec E.20/45 with a Wasp engine. A Mk.2 prototype (against spec E.34/46) flew with a Leonides 71 engine. In all, 178 built in 13 marks, 65 as HR.14 and 50 as the Mk.52 for export.

    British Army used HC.10 and HC.11, RAF used HR.12, HR.13 and HR.14. RAN used HR.50 and HR.51. The Luftwaffe took delivery of the Mk.52.




    Type 171 Sycamore News


    Sycamore Historic Visit to Weston-super-Mare, 14-Jun-18 : #museum The world’s last flying Bristol 171 Sycamore flew to the Helicopter Museum at Weston-super-Mare, UK 60 years after it was built. Will be displayed until June 24



    Specifications


    Engine: 1 x Alvis Leonides Mk.71 550 shp
    Capacity: 1 + 4
    Length: (m) 18.62
    Height: (m) 4.23
    Blades: 3
    Rotor diam.: (m) 14.8
    Disc area: (m2) 172.1
    Weight: (kgs) Empty: 1730     Max: 2450
    Speed: (km/h)     Max: 212
    Range: (km) 431
    Ceiling: (m) 4725     Max: 4875
    Rate/Climb: (m/min)
    blueprints


    Derivatives & Versions


    ModelYearHistory
    Sycamore 1 1947 Type 171 Sycamore first flew 27 Jul 1947 against spec E.20/45 with a Wasp engine. Two built.
    Sycamore 2 1948 A single Type 171 Mk.2 prototype, (against spec E.34/46) flew with a Leonides 71 engine. An improvement over the Mk.1 was the engine orientation ...
    Sycamore 3 1950
    Sycamore 4 1953 The Type 171 Mk.4 was built with 4 doors, featured a 520shp Alvis Leonides 71 engine, a higher main undercarriage and the pilot sat on the right ...
    Sycamore Mk.52 1958 The Sycamore Mk. 52 was an export version for West Germany, based on the Sycamore 4. Federal German Government placed an order for 50 Sycamore Mk ...

    List of Operators of Bristol Type 171 Sycamore


    From Organisation with model Type 171 Sycamore
    1951
    australia Royal Australian Air Force
        2 1951/65
    1953
    australia Fleet Air Arm (RAN)
        14 1953/66
    united kingdom British European Airways
        2 1953/60
    united kingdom Royal Air Force
        93 1953/72
    1954
    belgium Force Aérienne Belge
        3 1954/60
    1957
    germany Luftwaffe
        46 1957/69
    1958
    germany Marineflieger
        13 1958/67
    1979
    united kingdom Flambards Experience
        1 1979/85
    1980
    united kingdom Newark (Notts & Lincs) Air Museum
        1 1980/   
    2007
    united kingdom Boscombe Down Aviation Collection
        1 2007/   
    2015
    united kingdom Aerospace Bristol
        Sycamore 4 1 2015/   
    Construction Numbers on database of Type 171 Sycamore or its versions

    2Sycamore 1
    1Sycamore 2
    19Sycamore 3
    90Sycamore 4
    50mk.52
    3Type 171 Sycamore






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