What is the most efficient turboprop engine?

PT6A-140A Turboprop
P&WC Launches the PT6A-140A Turboprop: The Most Powerful and Fuel Efficient Engine for the General Aviation Market. It has launched the new PT6A-140A turboprop engine and the PT6A-140AG variant – bringing the world’s most popular turboprop family to more than 70 engine models strong.

How much does a c130 engine cost?

Rolls-Royce T56 Turboprop Engine

Engine Type: Turboprop Engine
Applications: E-2C Hawkeye; E-2D Advanced Hawkeye; C-130 Hercules; P-3C Orion/EP-3E ARIES II; C-2A Greyhound
Status: In Production (E-2D)
Manufacturer: Rolls-Royce plc
Price/Unit Cost: T56-A-427: $2.40 million T56-A-427A: $3.19 million

Who made the T56 engine?

Allison Engine Company
The Allison T56 is an American single-shaft, modular design military turboprop with a 14-stage axial flow compressor driven by a four-stage turbine….Allison T56.

T56 / Model 501
National origin United States
Manufacturer Allison Engine Company Rolls-Royce plc

How long do turboprop engines last?

Typically, TBO ranges between 3,000 to 6,000 flight hours, but several factors must be considered – like the setting of operation, type of operation, frequency of operation, etc.

How many C-130 does the Philippines have?

Current inventory

Aircraft Origin In service
Combat Aircraft
C-130 Hercules United States 1 / 1 / 2
Turbo Commander United States 2
Cessna 208 Caravan United States 2

How much does a T56 cost?

When shopping for a T56, you will discover that there are numerous variations of T56’s, both new and used. At the pricier end of the spectrum, for about $3,000, you can buy a completely new unit (Tremec’s T56 Magnum) with a choice of gear ratios and shifter locations.

How much does it cost to rebuild a turboprop engine?

Nevertheless, costs for overhauling turboprop engines within Business Aviation typically fall in the $100k-$300k range per engine.

Are turboprop engines reliable?

Turboprops are reliable options and were designed to fill the gap between high speed, high altitude jets and low flying light airplanes. This does not mean turboprops are slow or fly low compared to jets, however.

What kind of engine is the Allison T56?

The Allison T56 is a single shaft, modular design military turboprop with a 14-stage axial flow compressor driven by a four-stage turbine. It was originally developed by the Allison Engine Company for the Lockheed C-130 transport entering production in 1954. It is now produced under Rolls-Royce which acquired Allison in 1995.

When did Rolls Royce start making the T56 turboprop?

It has been a Rolls-Royce product since 1995 when Allison was acquired by Rolls-Royce. The commercial version is designated 501-D. Over 18,000 engines have been produced since 1954, logging over 200 million flying hours. The T56 turboprop, evolved from Allison’s previous T38 series, was first flown in the nose of a B-17 test-bed aircraft in 1954.

What’s the compression ratio of an Allison T56?

Evolution of the T56 has been achieved through increases in pressure ratio and turbine temperature. The T56-A-14 installed on the P-3 Orion has a 4591 shp rating with a compression ratio of 9.25:1 while the T56-A-427 fitted to the E-2 Hawkeye has a 5250 shp rating and a 12:1 compression.

What was the purpose of the Allison yt56 a 6?

The YT56-A-6 produced pressurized air for blowing over control surfaces to demonstrate boundary layer control (BLC), which helped to enable short takeoff and landing (STOL) performance.:42–44 In 1963, Lockheed and Allison designed another STOL demonstrator, this time for a U.S. Army requirement.