Skip to main content Skip to search Skip to main navigation

TBO increased to 3,600 hours or 6 years

News

After reaching another milestone with 130 flying Silent-7 propellers, several propellers were inspected based on the certification requirements after 2,000 hours in service. The propellers showed basically no wear or abnormalities. Due to these excellent inspection results, the engineering team at MT-Propeller was able to increase the TBO for the 7-bladed propellers - presently installed on the Pilatus PC-12 series, the King Air 350 series and the Short Skyvan - to 3,600 hours or 6 years, whichever comes first.





The TBO for MT-Propeller’s 7-bladed Silent-7 props, which are currently used on aircraft such as the Pilatus PC-12 and the King Air 350 series, has now been increased to 3,600 hours or six years.

The official document, SB-1 R10, can be downloaded here https://www.mt-propeller.com/pdf/sbs/sb1r10.pdf

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 33 000 propeller systems with more than 115 000 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
More news from this category

f.u.n.k.e. AVIONICS demonstrates the next evolutionary stage of certified avionics

At AERO 2026, f.u.n.k.e. AVIONICS will present concrete advancements for enhanced safety, improved integration, and future-proof cockpit monitoring.

read now

MT-Propeller’s 3-blade prop for Piper PA-28

MT-Propeller’s 3-blade prop MTV-12 may now be installed in US-registered Piper PA-28 aircraft, as well.

read now

Slingsby Firefly

MT-Propeller has received the revision of the EASA STC 10081036 R1 for the installation of the 3-blade light-weight natural composite propeller MTV-9-B-C/C180-50( ) on the Slingsby T67 Models T67M260 Firefly and T67M200 Firefly.

read now

more News