The Lycoming T53, (company designation LTC-1) is a turboshaft engine used on helicopters and (as a turboprop) fixed-wing aircraft since the 1950s. It was designed at the Lycoming Turbine Engine Division in Stratford, Connecticut by a team headed by Anselm Franz, who was the chief designer of the Junkers Jumo 004 during World War II.
A much larger engine, similar in overall design, became the Lycoming T55. Both engines are now produced by Honeywell Aerospace.
T53-L-1B860 hp (645 kW)
T53-L-11825 hp (615 kW)
T53-L-13B1400 shp (1044kW) improved L-11
T53-L-7011,400 hp (1044 kW) Turboprop variant used on Mohawk and
AIDC T-CH-1T53-L-7031,800 hp (1343 kW) improved durability variant of the L-13B
T5311A1100 shp (820kW)
T5313A1400 shp (1044kW) commercial variant of the L-13
T5313B1400 shp (1044kW) commercial variant of the L-13
T5317A1500 shp (1119kW) improved variant of the L-13
LTC1K-4K1550 shp (1156kW) direct drive variant of the L-13B
AIDC T-CH-1 (T53-L-701)AIDC XC-2Bell 204B (T5311A)Bell 205A (T5313B)Bell 205A-1 (T5313B and T5317A)Bell AH-1 Cobra (T53-L-703)Bell UH-1H Iroquois (T53-L-703)Bell XV-15 (LTC1K-4K)Boeing Vertol VZ-2 (YT53)Canadair CL-84Doak VZ-4F+W C-3605Grumman OV-1D Mohawk (T53-L-701)Kaman HH-43 HuskieKaman K-1200 (T5317A)Kaman K-MAXRyan VZ-3 VertiplaneDB Class 210, diesel railway locomotiveData from Flight International
Type: TurboshaftLength: 58.4 in (1,483 mm)Diameter: 23 in (584 mm)Dry weight: 688 lb (312kg)Compressor: 5-stage axial compressor and 1-stage centrifugal compressorCombustors: reverse flowTurbine: 2-stage high pressure turbine; 2-stage power turbineMaximum power output: 1,451 shp (1,082 kW)Overall pressure ratio: 7.4Air mass flow: 10.7 lb/s (4.853 kg/s)Power-to-weight ratio: 
