Piper Meridian converted to a PT6A-135A

Having ideas how to make aircraft quieter and more efficient, MT-Propeller took the Piper M500 Meridian as a new program, replacing the original PT6A-42A engine with a PT6A-135A engine. Initial flight test data show basically the same performance, reduced noise with a maximum propeller RPM of 1900 and an increased range of:



MT-Propeller took the Piper M500 Meridian as a new program, replacing the original PT6A-42A engine with a PT6A-135A engine.

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

The flight tests were performed with a 5-bladed Quiet Fan Jet MTV-27 Propeller, the propeller is already certified on the original Piper Meridian and can be used also – if already installed – on this conversion.

Maintenance cost will be reduced by installing the new engine. Changing the engine family from the mid-size category to the small-size, makes an impressive difference for the operating 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 ft. EASA certification is planned for second quarter of 2024 with the FAA STC following.

About MT-Propeller



MT-Propeller is the world leading natural composite propeller manufacturer with 30 certified propeller models from 2-blade to 7-blade hydraulically controlled variable pitch propeller, for engines producing up to 5000hp, and 2-blade to 4-blade electrically controlled variable pitch propeller, for engines producing up to 350hp as well as two blade fixed pitch propellers.

The high performance, light weight and durable MT-Propellers can be used on aircraft with piston engines and propeller turbines, as well as on airships, wind tunnels and hovercraft. MT-Propellers can be developed for nearly every aircraft type from motor gliders to regional airliners.

Fulfilling the highest certification requirements they are also supplemental type certified on Part 25 aircraft.

MT-Propeller is holder of over 220 STCs worldwide and OEM supplier for more than 90% of the European Aircraft Industry as well as 30% of the US Aircraft Industry. More than 28 000 propeller systems with more than 100 000 blades are in service.

180 Million fleet hours where already performed on MT-Propellers.

With the longest industry TBO of 4500 hours or 6 years for the 5-bladed turbo prop MT-Propeller has proven the reliability over years.

A factory certified network of 62 service centers, provides best service and maintenance all over the world.

MT-PROPELLER Entwicklung GmbH
Airport Straubing-Wallmuehle
D-94348 Atting - Germany
phone: +49-(0)9429-9409-0
fax: +49-(0)9429-8432
sales@mt-propeller.com
www.mt-propeller.com