• Avia Propeller LogoAvia Propeller


  • last update November 3, 2025
STC Air Tractor
  • Air Tractor with 3-blade Avia V508H/108/A
  • Air Tractor with 3-blade Avia V508H/108/A

STC - Data


  • Type of Aircraft: Air Tractor AT-502

  • EASA STC: 10086020 (issued December 09, 2024)
  • FAA STC: SA12083IB (issued July 23, 2025)

  • STC Holder:
  • MT-Propeller Entwicklung GmbH
  • Flugplatzstrasse 1
  • 94348 Atting
  • Germany

  • Applicable Aircraft: Air Tractor AT-402(), -502() Series
    Models: AT-402, -402A, -402B, AT-502, -502B, -503A
  • Engines: Pratt & Whitney PT6A-( )
  • Propeller: AVIA V508H/108/A


  • Advantages:
  • Identical Performance Data compared with Legacy STC 4-blade propeller
  • Static Thrust (1,081 kg / 10,600 N / 2,600 lbs) same as existing Legacy 4-blade propeller STC
  • Optional power rating to 2080 rpm for reduced noice and higher efficiency
  • In-field removable blades: Easy installation because separate hub and blade installation
  • Single blades easily replaceable in-field

more information about the STC (.pdf)