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T53
Cutaway view of an early T53 turboprop, with single stage HP and power turbines
Type	Turboshaft
National origin	United States
Manufacturer	Lycoming Engines Honeywell Aerospace Ozark Aeroworks LLC
First run	~1955[1]
Major applications	AH-1 Cobra Kaman K-MAX OV-1 Mohawk UH-1 Iroquois
Developed into	Lycoming T55

TheLycoming T53, (company designationLTC-1) is aturboshaft engine used onhelicopters and (as aturboprop) fixed-wingaircraft since the 1950s. It was designed at theLycoming Turbine Engine Division inStratford, Connecticut, by a team headed byAnselm Franz, who was the chief designer of theJunkers Jumo 004 duringWorld War II.

A much larger engine, similar in overall design, became theLycoming T55 produced byHoneywell Aerospace. The T53 model is produced by Ozark Aeroworks LLC.

T53-L-1

T53-L-1A

770 hp (570 kW)

T53-L-1B

860 hp (640 kW)

T53-L-3

T53-L-5

960 hp (720 kW)

T53-L-7

T53-L-11

1,100 hp (820 kW)

T53-L-13

T53-L-13B

1,400 hp (1,000 kW) improved L-11

T53-L-701

1,400 hp (1,000 kW) turboprop variant used on Mohawk and AIDC T-CH-1

T53-L-703

1,800 hp (1,300 kW) improved durability variant of the L-13B

TF12

1,150 hp (860 kW) marine gas turbine fitted to prototype hydrofoil Halobates.^[2]

T5307A

commercial L-7

T5309A

commercial L-9A

T5309B

commercial L-9B

T5309C

similar to T5309A but with L-11 combustion chamber

T5311A

1100 shp (820 kW)

T5313A

1400 shp (1044 kW) commercial variant of the L-13

T5313B

1400 shp (1044 kW) commercial variant of the L-13

T5317A

1500 shp (1119 kW) improved variant of the L-13

T5317A-1

T5317B

T5317BCV

LTC1B-1

LTC1B-2

company designation for L-1A

LTC1F-1

company designation for L-3

LTC1F-2

company designation for L-7

LTC1K-1

company designation for L-5

LTC1K-2

company designation for L-9

LTC1K-2A

company designation for L-9A

LTC1K-2B

company designation for L-9B

LTC1K-4

company designation for L-13

LTC1K-4A

for tilt-wing / tilt-rotor aircraft (Canadair CL-84 Dynavert)

LTC1K-4K

1550 shp (1156 kW) direct drive variant of the L-13B

LTC1K-5

company designation for L-11

Kawasaki KT5311A

Kawasaki production forFuji-Bell 204B helicopters

• AIDC T-CH-1 (T53-L-701)
• AIDC XC-2
• Bell 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)
• Canadair CL-84 Dynavert
• Doak VZ-4
• F+W C-3605
• Grumman OV-1D Mohawk (T53-L-701)
• Kaman HH-43 Huskie
• Kaman K-MAX (T5317A-1)
• Ryan VZ-3 Vertiplane
• Vertol VZ-2 (YT53)
• Eagle Single (T5317A, T5317B, or T5317BCV)^[3][4]

• DB Class 210, diesel railway locomotive

Data fromFlight International^[5]

• Type:Turboshaft
• Length: 58.4 in (1,483 mm)
• Diameter: 23 in (584 mm)
• Dry weight: 688 lb (312 kg)

• Compressor: 5-stageaxial and 1-stagecentrifugal
• Combustors: reverse flow
• Turbine: 2-stage high pressure turbine; 2-stagepower turbine

• Maximum power output: 1,451shp (1,082kW)
• Overall pressure ratio: 7.4
• Air mass flow: 10.7 lb/s (4.853 kg/s)
• Power-to-weight ratio: 2.109 hp/lb

Related development

• Lycoming T55

Related lists

• List of aircraft engines

• Gunston, Bill (2006).World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. p. 132.ISBN 0-7509-4479-X.

Wikimedia Commons has media related toLycoming T53.

• Honeywell T53 page
• Ozark Aeroworks, LLC

• Lycoming aircraft engines
• 1950s turboprop engines
• Helicopter history
• Honeywell Aerospace aircraft engines
• 1950s turboshaft engines

• Articles with short description
• Short description is different from Wikidata
• Articles needing additional references from November 2008
• All articles needing additional references
• Commons category link from Wikidata