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.




Model 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 550shp
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 Royal Air Force
    93 1953/72
united kingdom British European Airways
    2 1953/60
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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