75 Pilatus PC-12s Currently Sporting MT’s The Silent 7

The world's first seven-blade propeller is currently installed on 75 European and U.S. specimens of Pilatus’s venerable PC-12, single-engine turboprop aircraft.

Developed by MT-Propeller and dubbed The Silent 7, the impressive air-screw redefines PC-12 performance, significantly improving on the climb, cruise, and even the descent characteristics of the model’s five-blade OEM propeller.

The advantages of MT-Propeller’s The Silent 7 include:

• Certified twenty-percent improvement in takeoff (roll) performance.
• Improved climb and cruise performance.
• Diminished cockpit, cabin, and overall aircraft noise.
• Smoother Operation than comparably sized (diameter) five-blade propellers.

Retrofitted with MT-Propeller’s The Silent 7, Pilatus’s PC-12 allegedly meets the highest E.U. noise regulations for unrestricted airport operations.

In April 2023, the STC for Pilatus PC-12 aircraft retrofitted with the seven-blade MTV-47 propeller was updated to reflect improvements in certified performance cited in the aircraft’s Approved Flight-Manual Supplement (AFMS). Subject improvements consisted primarily of a twenty-percent reduction in required takeoff field length compared to the originally-certified OEM values.

Converted PC-12 aircraft are eligible to receive the latest certified performance range of MT propellers.

Founded in 1980, MT-Propeller Entwicklung GmbH is a manufacturer of composite propellers for single and twin engine aircraft, airships, wind tunnels, and additional special applications. The company’s certified propeller models range from two- to seven-blade hydraulically-actuated variable-pitch propellers for aero-engines producing up to five-thousand horsepower, and two- to four-blade electronically-actuated variable-pitch propellers for aero-engines producing up to 350-horsepower. MT also produces two-blade fixed propellers.

The company headquarters are located on Germany’s Straubing Wallmuhle Airport (RBM) in Bavaria.

All told, MT-Propeller holds north of 220 STCs. 

To date, MT propellers have cumulatively logged 180-million flight hours.

Pilatus’s PC-12 aircraft family is operated by corporate flight departments, individual owner-operators, fractional and charter companies, air ambulance service providers, and numerous world militaries which make use of the aircrafts’ toughness and expansive capabilities. The PC-12’s large cabin, standard cargo door, docile handling characteristics, and low operating costs make for a uniquely attractive and useful machine, at once conducive to transporting executives between major city centers, hauling cargo between remote and austere environs, and advancing tactically against threats to national security.

FMI: www.mt-propeller.com