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Cessna 441 to benefit from MT-Propeller blades
MT-Propeller natural composite blades provide maximal vibration damping, are protected from erosion, have greater ground clearance, have a small diameter and a favourable TBO, and spare parts come at low cost.
The Cessna 441 is powered by two Honeywell TPE-331-8 propeller turbines or TPE-331s.

MT-Propeller has received FAA STC for the MTV-27 Quiet Fan Jet composite five-blade propeller on the Cessna 441 powered by two Honeywell TPE-331-8 propeller turbines or TPE-331s installed per approved STCs that do not exceed 635.5 SHP and 2000 rpm. The installation is already certified by EASA STC.

MT-Propeller VP Martin Albrecht says: "The prop is bonded on wide chord nickel alloy leading edges for superior erosion protection of the blades; it has a smaller diameter of up to four inches compared to the original propeller, which means greater ground clearance of about two inches for less FOD and also more clearance to the fuselage and therefore less cabin noise from the prop tips; takeoff improvements of up to 15 per cent are possible, compared to the original AFM and therefore a higher level of safety for the calculated take-off run; no propeller ADs; TBO of 4,500 hours or six years, whichever comes first, for low maintenance costs; no intermediate inspections are needed between the TBO, which requires the propeller removal; reduced cost for spare parts, like blades and lower overhaul costs, for the complete propeller assembly; no RPM restrictions for the complete operational range.

The long time proven MT-Propeller natural composite blades provide significant inside and outside noise reduction. There is no life limitation of the blades and they are repairable in case of an FOD. The MT-Propeller natural composite blades provide best vibration damping characteristics for almost vibration free propeller operation.

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