MT STC Cessna 421C

STC – Data

• Type of Aircraft: C 421C
• EASA: EASA.A.S.03114 (issued Dec 18, 2007)
• FAA: SA02550NY (issued July 2008)
• Applicable Aircraft: Cessna 421C
  Compliance has also been shown for all combinations
  (and/or) of following FAA STCs:
  SA438NW, SA5183NM, SA8352SW, SA00015SE, SA5811SW
• Engines: TCM GTSIO-520-L and -N
• Propeller: MTV-16-1-E-C-F/CF225-37a
• Advantages:

• Best vibration damping characteristics
• Bonded on stainless steel leading edge for best erosion
  protection of the blades
• Enhanced take-off distance by approx. -3% (MTOW, SL, ISA)
• Enhanced climb by approx. 5% (MTOW, ISA)
• Cruise performance increased by approx. 3 to 4 kts
  (Mid GW, ISA)
• Approx. 4 lbs less weight than the original propellers
• Significant inside and outside noise reductions
• Inside noise is reduced by 5 to 7 dB(A)
• Unlimited blade life
• FOD repairable blades

more information about the STC (.pdf 75k)