Lycoming LTS101

LTS101 / LTP101
LTS101-750C engine installation (left engine) in a Bell 222UT
Type	Turboprop / turboshaft
National origin	United States
Manufacturer	Lycoming Engines Honeywell Aerospace
First run	1960
Major applications	Air Tractor AT-302 Bell 222 HH-65 Dolphin

The Lycoming (now Honeywell) LTS101 is a turboshaft engine family ranging from 650 to 850 shaft horsepower, used in a number of popular helicopters, and, as the LTP101 turboprop, light aircraft. Both models carry the US military designation T702. The engine was originally designed at the Lycoming Turbine Engine Division in Stratford, Connecticut, but is now produced by Honeywell Aerospace.

Applications

• Bell 222A, B and UT
• Eurocopter AS350 AStar
• HH-65A/B Dolphin
• MBB/Kawasaki BK 117
• Air Tractor AT-302
• Piaggio P166
• Cessna 421C Golden Eagle (turbine conversion)
• EcoJet concept car built under the direction of General Motors and Jay Leno

Variants

LTP101-600

LTP101-700

LTS101-600A-2

LTS101-600A-3

LTS101-600A-3A

LTS101-650B-1

LTS101-650B-1A

LTS101-650C-2

LTS101-650C-3

LTS101-650C-3A

LTS101-700D-2

LTS101-750B-1

LTS101-750B-2

LTS101-750C-1

LTS101-850B-2

T702

Specifications (LST101-650C-3/3A)

Data from

General characteristics

• Type: Turboshaft
• Length: 31 in (78 cm)
• Diameter: 23 in (58 cm)
• Dry weight: 241 lb (109 kg)

Components

• Compressor: 1 stage low pressure axial compressor, 1 stage high pressure centrifugal compressor
• Combustors: Annular
• Turbine: 1 stage high pressure turbine, 1 stage low pressure turbine

Performance

• Maximum power output: 675 shp (503 kW)
• Overall pressure ratio: 8.4:1
• Specific fuel consumption: 0.57 lb/lbf-hr
• Power-to-weight ratio: 2.8:1 hp/lb

See also

Related development

• Honeywell HTS900

Related lists

• List of aircraft engines

External links

• Honeywell LTS101 page