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The monthly news publication for aviation professionals.

ACE 2026 - September 8th

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Meridian upgrade delivers faster speeds and quieter performance
Developed by MT-Propeller and distributed by The Blackhawk Group, the PT6A-135A-based STC replaces the factory-installed engine and includes a 5-blade composite propeller.
The full upgrade kit includes a new engine, exhaust, propeller and mounting hardware.
Read this story in our September/October 2025 printed issue.

The Blackhawk Group has been named exclusive distributor in North and South America for MT-Propeller’s Piper Meridian engine replacement programme. The Supplemental Type Certificate replaces the factory PT6A-42A engine with the lighter, more efficient Pratt & Whitney Canada PT6A-135A.

The upgrade also includes MT’s 5-blade MTV-27 Quiet Fan Jet composite propeller. Together, these allow cruise speeds of up to 258 KTAS, improved fuel economy, more payload and up to 1,340 NM range at 30,000 feet, as well as lower internal and external noise levels.

The STC kit includes the engine, propeller, new exhaust system, engine mounting hardware, airbox components and power control brackets. The Garmin EIS system is required.

MT-Propeller vice president Martin Albrecht says: “The Blackhawk Group was the obvious choice for this program in the Americas. Their deep expertise with PT6A upgrades, reputation for excellence and strong support network made them the ideal partner.”

Edwin Black, president of TBG’s Proprietary Upgrades division, adds: “This programme builds upon our success with the Finnoff Silent 7 programme to provide an option that combines performance, efficiency and value.”

Other News
 
Canada awards silent prop STC for Beech 300 series
August 31, 2026
TCCA STC SA26-78 officially clears the installation of the seven-bladed MTV-47 Silent 7 propeller system on eligible Beech King Air 300 series aircraft.
Blackhawk forms dedicated propeller solutions organisation
August 3, 2026
A single operation has been created to bring propeller upgrades, installation, maintenance and support together through Performance Centers and dealer networks in the US and UK.
Blackhawk completes testing for Meridian de-ice STC
July 26, 2026
The heated de-ice STC adds to a range of Meridian upgrades that includes the MT X-Range 135A Engine+ programme, offering owners a wider modernisation path.