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STC King Air 90
  • Beech King Air 90 with 5-blade MTV-27
  • Beech King Air 90 with 5-blade MTV-27

STC - Data


  • Type of Aircraft: Beech King Air 90 Series

  • EASA STC: 10046759-R2 (issued February 10, 2017)
  • FAA STC: SA03507NY (issued May 12, 2016)
  • Transport Canada: Letter of Acceptance to the
    EASA STC 10046759 (issued Feb 21, 2017)
  • DGCA India STC: Acceptance of the EASA STC (issued Jan. 22, 2014)
  • ANAC Brazil CST: 2015S09-07 (issued September 08, 2015)
  • AFAC Mexico: Validation IA-941/2023 of the EASA STC

  • Applicable Aircraft: King Air B90, C90, C90A, C90GT, C90GTI, E90,
    F90 and with Blackhawk Conversion
  • Engines: PT6A-20, -20A, -21, -27, -28, -135A
    and other TC/STC approved PT6A series engines
    which do not exceed the propeller TCDS
  • Propeller: MTV-27-1-E-C-F-R(P)/CFR210-58d

  • Advantages:
  • Best vibration damping characteristics for almost
    vibration free propeller operations
  • Bonded on nickel alloy leading edge for superior
    erosion protection of the blades
  • General performance improvement
    (5% take-off & climb, 2-3 kts cruise with 1900 rpm)
  • No propeller speed restrictions on ground while operating in low idle
  • Unlimited blade life and FOD repairable blades
  • More ground clearance - less FODs
  • Lower ITTs during start-up for less engine wear
  • Unbeatable esthetic ramp appeal
  • Significant cabin noise and vibration reduction
  • All models comply with the strict German noise regulations
    2010– "Landeplatz Lärmschutz Verordnung"
    for unrestricted airport operations in Germany
    and other European Countries.

more information about the STC (.pdf 70k)