MT-Propeller - The Winner's Propeller

Aug, 2017
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STC Twin Commander 690 / 695 Series


  • Twin Commander 690 / 695 Series with 5-blade MTV-27
  • Twin Commander 690 / 695 with 5-blade MTV-27

STC - Data


  • Type of Aircraft:Twin Commander 690 / 695 Series

  • EASA STC: 10060826 (issued Jan 27, 2017)
  • FAA STC: SA03933NY (issued July 19, 2017)

  • Applicable Aircraft: Twin Commander 690 / 695 Series
    Model: 690, 690A, 690B, 690C, 690D, 695, 695A, 695B
  • Engines: Honeywell, USA TPE-331-5-( ) or TPE-331-10-( )
    or TPE-331-10T-( ) or any TPE-331-( ) installed
    per approved STC which do not exceed 820SHP and 1591 rpm.
  • Propeller: MTV-27-1-E-C-F-R(G)/CFRL240-55d

  • Advantages:
  • Best vibration damping characteristics for
    almost vibration free propeller operations.
  • Bonded on nickel alloy leading edge
    for best erosion protection of the blades.
  • Reduced take-off distance by approx. 10 %
    (MTOW, SL, ISA conditions).
  • Enhanced cruise performance by 3 to 4 kts (MTOW, ISA).
  • Unlimited blade life; FOD repairable blades.
  • Cooler ITTs during engine start up, therefore less
    engine wearand reduced risk of hot start.
  • Unbeatable esthetic ramp appeal.
  • Lighter than the original propellers by 8 kg (17,7 lbs)
    per propeller assembly.
  • Significant inside and outside noise reduction.
  • Cabin noise reduction between 3-5 dB(A).
  • The STC complies with the strict German noise regulations
    2010 - „Landeplatz Lärmschutz Verordnung“ for unrestricted
    airport operation in Germany and other European Countries.

more information about the STC (.pdf 90k)