MT-Propeller has received a new EASA type certificate for the propeller model MTV-9 for engines up to 850 shp at a maximum propeller speed of 2,200 rpm.
This propeller, with a diameter of up to 102.3 inches (260 cm), is an option for owners of Pratt & Whitney engines within those limits to install the lightest weight certified three-bladed full feathering/reversing propeller model with an approximate weight of 92 lbs (42 kg). The newly certified reverse systems can be used on P&W, Allison and Walter turbine engines.
The MTV-9 was already certified for the hub-flange types -B (Lycoming engines), -D (Continental engines), -E (Propellerturbines), -K (M-14 radial engines) and now it is also certified for the hub flange type -AA. It was successfully tested on the Dornier Do27 and is suitable for all Spline 20 applications. The advantages of the MTV-9 on the hub flange -AA types are the bolt-on design and the fact that no engine modifications are neccessary and it is easy to install.
The MTV-9 is an easy to maintain, low maintenance, certified system, a constant speed propeller of long time proven MT-Propeller quality. More than 4,150 MTV-9 propeller systems are in service worldwide.
No life limited parts are installed in any of the company’s propellers which, it says, makes them some of the lowest cost to be operated.