The Turbomeca Turmo is a French turboshaft engine developed for helicopter use. A descendant of Turbomeca's pioneering Artouste design, later versions delivered around 1,200 kW (1,610 shp). A turboprop version was developed for use with the Breguet 941 transport aircraft.
Current versions are built in partnership with Rolls-Royce, and the engine is produced under license by the Chinese Changzhou Lan Xiang Machinery Works as the WZ-6 and Romanian Turbomecanica Bucharest as the Turmo IV-CA.
Turmo IIICA 890 kW (1,200 hp) turboshaft powering the Sud-Aviation Frelon prototypes.
Turmo IIIC2Developed from the IIIC delivering 970 kW (1,300 hp) maximum output
Turmo IIIC3Maximum rating 1,100 kW (1,500 hp) at 33,500 rpm for production Super Frelon helicopters
Turmo IIIC4Turmo IIIC5Turmo IIIC6Turmo IIIC7Turmo IIIDTurboprop for the proposed Breguet Br 942 STOL transport, maximum rating 913 kW (1,225 hp).
Turmo IIID2996 kW (1,335 hp) at 22,460 free turbine rpm
Turmo IIID31,080 kW (1,450 hp) at 33,500 rpm
Turmo IVBTurmo IVCTurmo IV-CALicence production in
RomaniaTurmo VITurboprop engine with two axial stages, one centrifugal compressor stage and two free power turbine stages, rated at 1,300 kW (1,800 hp) at 32,000 rpm.
WZ-6Licence production at the Changzhou Lan Xiang Machinery Works in the Peoples Republic of China.
TurboshaftAérospatiale PumaAérospatiale Super FrelonAérospatiale Super PumaBölkow Bo 46IAR 330SNCASE SE.3200 FrelonTurbotrainSNCF Class T 2000TurbopropBreguet 940Breguet 941Breguet 941SData from Flight International.
Type: Two-shaft turboshaftLength: 182 cm (71.6 in)Diameter: 71.6 cm (28.2 in)Dry weight: 325 kg (716 lb)Compressor: Single-stage axial, single-stage centrifugalCombustors: Annular, reverse-flowTurbine: Two-stage compressor turbine, two-stage power turbineMaximum power output: 1,217 kW (1,632 shp)Overall pressure ratio: 5.9:1Air mass flow: 6.2 kg/s (13.7 lb/sec)Power-to-weight ratio: 3.74 kW/kg (2.28 shp/lb) 
