MT-Propeller Entwicklung GmbH has received the DGAC Mexico Validation of the EASA STC for the installation of the 5-blade MTV-27 propellers on the Beechcraft King Air 200/250 Series powered by engine P&WC PT6A-41, -42, -52, and -61 models and the Beech King Air 300/350 Series powered by P&WC PT6A-60A engines.
The installation is already certified by EASA, FAA, Transport Canada and ANAC Brazil.
According to MT-Propeller President Gerd Muehlbauer, the installation of the 5-blade MTV-27 Propellers on the King Air 200/250 and 300/350 series aircraft feature the following advantages:
■ General performance improvement (for the 200/250, five percent takeoff and climb, three knots cruise and for the 300/350 eight percent takeoff and climb, four-to-five knots cruise)
■ Approximately 25 pounds less weight than the original 4-blade propellers with aluminum blades
■ Provides best vibration damping characteristics for almost vibration free propeller operations
■ Has bonded-on nickel alloy leading edges for superior erosion protection of the blades
■ No propeller speed restrictions on ground while operating in low idle
■ More ground clearance which allows for less FODs
■ Has lower ITTs during start-up for less engine wear
■ Provides a significant cabin noise and vibration reduction
■ Has no life limitation
■ Has FOD repairable blades
■ Unbeatable aesthetic ramp appeal
The company also recently received EASA approval for its blades in the Beech 99/100 series models.
MT-Propeller is holder of over 210 STCs worldwide, and OEM supplier for more than 90 percent of the European aircraft industry as well as 30 percent of the U.S. aircraft industry. There are 20,000 propeller systems in service, compiling 130 million fleet hours.