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T55 Turboshaft Engine
T55 Turboshaft Engine
To date, more than 6,000 T55 engines have been produced, logging some 12 million hours of operation on the Boeing CH-47 Chinook and MH-47 helicopters.
Our T55 family of military turboshaft engines began life, as its designation indicates, in 1955. To date, more than 6,000 T55 engines have been produced, logging some 12 million hours of operation on the Boeing CH-47 Chinook and MH-47 helicopters.
At its introduction, the T55 produced 1,600 shaft horsepower (SHP). Several decades and generations of development later, today’s T55 produces 5,000 SHP and powers the CH-47 Chinook to a maximum speed of 170 knots.
The latest configuration T55-714C delivers 20% more power and uses 8% less fuel than its predecessor. The next-generation T55 is a 6,000-shp class engine and is easier to maintain with lower operating costs and increased readiness for the warfighter. It also doubles the operating range for ‘high, hot and heavy’ missions at max payload.
Turboshaft Comparison
| Model | Engine Type | Market | Length (inch/cm) |
Height (inch/cm) |
Takeoff Power (Sea Level, SHP) |
Output Shaft Speed (RPM) |
|---|---|---|---|---|---|---|
| LTS101-700D-2 | Turboshaft | Commercial Helicopter | 31.6/80.2 | 24.8/63 | 732 | 37000 |
| LTS101-850B-2 |
Turboshaft | Commercial Helicopter | 31.1/78.9 | 25.4/64.4 | 780 | 36281 |
| HTS900-2-1D |
Turboshaft | Commercial Helicopter | 36.3/92.2 | 25.5/64.7 | 820 | 6317 |
| T53 | Turboshaft | Commercial and Military Helicopters | 47.6/120.9 | 24.5/62.2 | 1500 | 6461 |
| CTS800-4N |
Turboshaft | Military Helicopters | 48.1/122.2 | 28.7/72.9 | 1361 | 6402 |
| CTS800-4A |
Turboshaft | Military Helicopters | 34.0/86.4 | 28.7/72.9 | 1373 | 23000 |
| AGT1500 | Turboshaft | Battle Tank | 66.5/168.9 | 31.8/80.8 | 1500 | 3000 |
| Model | Engine Type | Market | Length (inch/cm) |
Height (inch/cm) |
Engine Shaft Horsepower Class | Output Shaft Speed (RPM) |
| T55-GA-714A |
Turboshaft | Military Helicopters | 47.1/119.6 | 24.3/61.6 | 5,000 | 15066 |
| T55-GA-714C | Turboshaft | Military Helicopters | 47 | 33 | 6,000 | 15066 |
| T55-L-714A |
Turboshaft | Military Helicopters | 47.1/119.6 | 24.3/61.6 | 5,000 | 15066 |
| T55-L-714C | Turboshaft | Commercial and Military Helicopters | 47 | 33 | 6,000 | 15066 |
CM = Centimeter
RPM = Revolutions Per Minute
SHP = Shaft Horsepower
Contact Us
Want to learn more about the T55 engine? Provide your contact information in the form below and a Honeywell representative will contact you.
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