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STC approved for new propellers on Diamonds

By General Aviation News Staff · October 4, 2025 · Leave a Comment

MT-Propeller has received STCs from EASA and the FAA for the installation of its two-blade propeller on the Diamond DV20 and DA20-A1 powered by Rotax 912 A3 or Rotax 912 F3 engines.

According to MT-Propeller Vice President Martin Albrecht, the MTV-21-A/170-05 propeller provides:

  • Stainless steel propeller leading edge for erosion protection of the blades
  • Milled single piece threadless aluminum hub
  • Vibration damping characteristics
  • FOD repairable with unlimited propeller blade life.

MT-Propeller manufactures 30 certified propellers from 2-blade to 7-blade hydraulically controlled variable pitch propellers for engines producing up to 5,000 hp, and 2-blade to 4-blade electrically controlled variable pitch propellers for engines producing up to 350 hp, as well as two blade fixed pitch propellers.

MT-Propeller holds more than 230 STCs worldwide and is an OEM supplier for more than 90% of the European aircraft industry, as well as 30% of the US aircraft industry, according to officials with the German company.

For more information: MT-Propeller.com

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