Beech King Air 300 / 350 Series with 5-Blade MT-Propeller Now Supplemental Type Certified up to MTOW 17,500 lbs by EASA

June 24, 2021

MT-Propeller Entwicklung GmbH has received the Revision of the EASA STC 10050861 R2 installing the Quiet Fan Jet 5-blade Propeller MTV-27-1-(E,N)-C-F-R(P)/CFR260-65b on the Beech King Air 300/350 Series powered by the Engines P&WC PT6A-60A /-67A with a MTOW up to 17,500 lbs.

The FAA STC Revision is in progress.

According to MT-Propeller President Gerd Muehlbauer, the installation of the 5-blade MT-Propeller on the Beech King Air 300/350 Series:

- provides best vibration damping characteristics for almost vibration free propeller operations

- has bonded on nickel alloy leading edges for for superior erosion protection of the blades

- provides a general performance improvement (8% take-off & climb, 4-5 kts cruise)

- has no propeller speed restrictions on ground while operating in low idle

- has more ground clearance for less FODs

- has lower ITTs during start-up for less engine wear.

- provides a significant cabin noise and vibration reduction

- has an unbeatable esthetic ramp appeal

- has no life limitation 

- has FOD repairable blades

- has the longest industry TBO of 4,500 hours / 6 years

All models comply with the strict German noise regulations 2010 – "Landeplatz Lärmschutz Verordnung" for unrestricted airport operation in Germany and other European Countries