MT-Propeller has earned an EASA STC for the installation of the PT6A-135A engine in the Piper Meridian.
The FAA STC is in the works, according to officials with the German company.
As a company that holds more than 220 STCs to install its propellers with up to seven blades, MT-Propeller’s engineers and test pilots decided to take the next step and not only certify a more efficient propeller, but also combine it with a more efficient engine, company officials said.
The original PT6A-42A engine installed in the Meridian was replaced with a PT6A-135A engine.
According to company officials, the advantages of the engine replacement include:
- Range: Maximum range with maximum fuel (ISA, MTOW, no wind, one pilot, 45 minute fuel reserve):
- 203 KTAS cruise speed: 1,340 nm @ 30,000 feet
- 203 KTAS cruise speed: 1,290 nm @ 28,000 feet
- 240 KTAS cruise speed: 1,160 nm @ 28,000 feet
- 258 KTAS cruise speed: 960 nm @ 25,000 feet
- Reduction of Maintenance cost: Direct cost per mileage will be similar to the PA46-350P Lycoming-powered Mirage, but with a top speed of up to 260 KTAS @ 30,000 feet
- Noise reduction: The new engine has a speed of 1,900 rpm compared to the original speed of 2,000 rpm. The certified outside noise is reduced from the original 74,9 db(A) to 66,9 db(A). Inside noise has also been reduced.
The MT-Propeller STC Kit contains:
- 1 new P&W PT6A-135A engine
- 1 new propeller
- 1 new set of exhaust pipes
- 1 new set of airbox parts
- 1 new bracket set for the engine power control interface
Not included, but the minimum needed: The Garmin EIS System
The 5-bladed propeller is mandatory for this STC, but in case the 5-blade Quiet Fan Jet MTV-27 propeller is already installed, it can also be used on this conversion, company officials said.
For more information: MT-Propeller.com