helis.com Tracker

Bristol 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 hand side of the cockpit. Most Sycamore production units were based on the Mk.4.

Specifications

Engine1 x Alvis Leonides Mk.71 550 shp
Capacity2 + 3
Length (m)18.62
Height (m)4.23
Blades3
Rotor diam. (m)14.8
Disc area (m2)172.1
Weight (kgs)Empty: 1730 Max: 2450
Speed (km/h)Max: 227
Range (km)530
Ceiling (m)4725
blueprints Sycamore 4

Airframes (93)

C/NModelBuiltReg
13242sycamore 41956UK XJ380S-M
13243sycamore 41956UK XJ381w/o 1957
13245sycamore 41954UK XG5001 w/o 1961
13246sycamore 41955UK XG501w/o 1955
13247sycamore 41955UK XG5022
13248sycamore 41955UK XJ361w/o 1958
13264sycamore 41955UK XG503
13265sycamore 41955UK XG504
13266sycamore 41955UK XJ362w/o 1956
13267sycamore 41955UK XG505w/o 1956
13268sycamore 41955UK XG510w/o 1956
13269sycamore 41955UK XG509w/o 1962
13271sycamore 41955UK XG511w/o 1960
13272sycamore 41955UK XG512w/o 1963
13273sycamore 41955UK XG513w/o 1957
13368sycamore 41955UK XG514w/o 1964
13369sycamore 41955UK XG515
13370sycamore 41955UK XG516w/o 1957
13371sycamore 41955UK XG517w/o 1963
13372sycamore 41955UK XG518 XG518
13373sycamore 41955UK XG519w/o 1964
13374sycamore 41955UK XG520w/o 1960
13375sycamore 41955UK XG521w/o 1961
13376sycamore 41955UK XG522w/o 1961
13377sycamore 41955UK XG523 XG523V w/o 1962
13378sycamore 41956UK XG538w/o 1960
13379sycamore 41956UK XG539w/o 1958
13380sycamore 41955UK XG540S-Y w/o 1965
13381sycamore 41956UK XG541w/o 1958
13382sycamore 41956UK XG542w/o 1958

Operators

1951-1965 AU Royal Australian Air Force Type 171 Sycamore
1953-1966 AU Fleet Air Arm (RAN) Type 171 Sycamore
1953-1972 UK Royal Air Force Type 171 Sycamore
1979-1985 UK Flambards Experience Type 171 Sycamore
2007- UK Boscombe Down Aviation Collection Type 171 Sycamore
2015- UK Aerospace Bristol