Question: What is the approximate global workforce of the Turboprop manufacturer whose designation was originally designed in the 1950s by Garrett AiResearch ?

text: Turboprop
Current engines

A turboprop engine is a turbine engine that drives an aircraft propeller. In its simplest form a turboprop consists of an intake, compressor, combustor, turbine, and a propelling nozzle. Air is drawn into the intake and compressed by the compressor. Fuel is then added to the compressed air in the combustor, where the fuel-air mixture then combusts. The hot combustion gases expand through the turbine. Some of the power generated by the turbine is used to drive the compressor. Thrust is obtained by the combusting gases, pushing toward a (vectored) surface in front of the expanding gas. The rest is transmitted through the reduction gearing to the propeller. Further expansion of the gases occurs in the propelling nozzle, where the gases exhaust to atmospheric pressure. The propelling nozzle provides a relatively small proportion of the thrust generated by a turboprop. In contrast to a turbojet, the engine's exhaust gases do not generally contain enough energy to create significant thrust, since almost all of the engine's power is used to drive the propeller.
Manufacturer Country Designation Dry weight ( kg ) Takeoff rating ( kW ) Application
DEMC People 's Republic of China WJ5E 720 2130 Harbin SH-5 , Xi'an Y-7
Europrop International European Union TP400-D6 1800 8203 Airbus A400M
General Electric United States CT7 -5A 365 1294
General Electric United States CT7 -9 365 1447 CASA/IPTN CN-235 , Let L-610 , Saab 340 , Sukhoi Su-80
General Electric United States Czech Republic H80 Series 200 550 - 625 Thrush Model 510 , Let 410NG , Let L-410 Turbolet UVP-E , CAIGA Primus 150 , Nextant G90XT
General Electric United States T64 -P4D 538 2535 Aeritalia G.222 , de Havilland Canada DHC-5 Buffalo , Kawasaki P-2J
Honeywell United States TPE331 Series 150 - 275 478 - 1650 Aero/Rockwell Turbo Commander 680/690/840/960/1000 , Antonov An-38 , Ayres Thrush , BAe Jetstream 31/32 , BAe Jetstream 41 , CASA C-212 Aviocar , Cessna 441 Conquest II , Dornier Do 228 , Fairchild Swearingen Metroliner , General Atomics MQ-9 Reaper , Grum Ge man , Mitsubishi MU-2 , North American Rockwell OV-10 Bronco , Piper PA-42 Cheyenne , RUAG Do 228NG , Short SC.7 Skyvan , Short Tucano , Swearingen Merlin , Fairchild Swearingen Metroliner
Honeywell United States LTP 101 -700 147 522 Air Tractor AT-302 , Piaggio P.166
KKBM Russia NK-12MV 1900 11033 Antonov An-22 , Tupolev Tu-95 , Tupolev Tu-114
Progress Ukraine TV3-117 VMA-SB2 560 1864 Antonov An-140
Klimov Russia TV7-117 S 530 2100 Ilyushin Il-112 , Ilyushin Il-114
Progress Ukraine AI20 M 1040 2940 Antonov An-12 , Antonov An-32 , Ilyushin Il-18
Progress Ukraine AI24 T 600 1880 Antonov An-24 , Antonov An-26 , Antonov An-30
LHTEC United States LHTEC T800 517 2013 AgustaWestland Super Lynx 300 ( CTS800-4N ) , AgustaWestland AW159 Lynx Wildcat ( CTS800-4N ) , Ayres LM200 Loadmaster ( LHTEC CTP800-4T ) ( aircraft not built ) , Sikorsky X2 ( T800-LHT-801 ) , TAI/AgustaWestland T-129 ( CTS800-4A )
OMKB Russia TVD-20 240 1081 Antonov An-3 , Antonov An-38
Pratt & Whitney Canada Canada PT-6 Series 149 - 260 430 - 1500 Air Tractor AT-502 , Air Tractor AT-602 , Air Tractor AT-802 , Beechcraft Model 99 , Beechcraft King Air , Beechcraft Super King Air , Beechcraft 1900 , Beechcraft T-6 Texan II , Cessna 208 Caravan , Cessna 425 Corsair/Conquest I , de Havilland Canada DHC-6 Twin Otter , Harbin Y-12 , Embraer EMB 110 Bandeirante , Let L-410 Turbolet , Piaggio P.180 Avanti , Pilatus PC-6 Porter , Pilatus PC-12 , Piper PA-42 Cheyenne , Piper PA-46-500TP Meridian , Shorts 360 , Daher TBM 700 , Daher TBM 850 , Daher TBM 900 , Embraer EMB 314 Super Tucano
Pratt & Whitney Canada Canada PW120 418 1491 ATR 42 -300/320
Pratt & Whitney Canada Canada PW121 425 1603 ATR 42 -300/320 , Bombardier Dash 8 Q100
Pratt & Whitney Canada Canada PW123 C/D 450 1603 Bombardier Dash 8 Q300
Pratt & Whitney Canada Canada PW126 C/D 450 1950 BAe ATP