MT-Propeller has achieved EASA certification to replace PT6A-42A engines with the PT6A-135A engine in conjunction with a 5-blade MT propeller.
The company holds more than 220 STCs to install MT-Propellers with up to 7 blades. The 5-bladed propeller is mandatory for this STC, and when a 5-blade Quiet Fan Jet MTV-27 propeller is already installed, it can also be used on this conversion.
Advantages of the engine replacement:
Efficiency: RANGE:Max. range with max fuel (ISA, MTOW, no wind, one pilot, 45 min fuel reserve)
203 KTAS cruise speed: 1340NM (2479km) @ 30000ft
203 KTAS cruise speed: 1290NM (2387km) @ 28000ft
240 KTAS cruise speed: 1160NM (2146km) @ 28000ft
258 KTAS cruise speed: 960NM (1776km) @ 25000ft
Reduction of Maintenance Costs: Changing the engine family from the mid-size to the small-size category, results in a significant difference in operating costs. Direct cost per mile will be similar to the PA46-350P Lycoming-powered Mirage, but with a top speed of up to 260 KTAS @ 30,000 ft.
Noise reduction: The speed of the new engine is 1900 rpm compared to the original speed of 2000 rpm. which reduces noise from the original 74.9 db(A) to 66.9 db(A).
The MT-Propeller STC Kit contains the following parts:
1 new engine P&W PT6A-135A
1 new propeller MTV-27-()/CFR203-58d
1 new set of exhaust pipes
1 new set of airbox parts
1 new bracket set for the engine power control interface
The system does require a Garmin EIS System at a minimum.
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