STC's and Conversions

For Beechcraft Baron Models A-55 and B55
The Colemill President 600 conversion, developed for the 55 series Beechcraft Baron, is Colemill's most popular performance package. The fully engineered President package complements the basic Baron airframe perfectly.

The President 600 sets a new standard in performance, safety and efficiency, as attested to by several hundred satisfied owners.


Also available are custom designed avionics installations, interior re-upholstering and exterior paint schemes.
Colemill's President 600 conversion will result in...
  • Increased top speed - by 20 mph or more.
  • Increased rate of climb.
  • Improved single-engine performance.
  • Improved safety.
Colemill's President 600 conversion includes...
  • Continental IO520E 300 horsepower engines with belt-driven generators or alternators
  • New Hartzell 3-bladed propellers
  • Woodward governors
  • New vacuum pumps, starters, alternators, lord mounts and new fuel and oil hoses
Price Sheet
CONVERSION PRICES INCLUDE REPAIRING OR REPLACING RUBBER BAFFLING.
CONVERSION PRICES DO NOT INCLUDE: REPAIRING METAL BAFFLING, AIRBOXES, OR EXHAUST SYSTEM, FUEL COSTS FOR TEST FLYING.

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Murfreesboro Municipal Airport
1932 Memorial Boulevard
Murfreesboro, TN 37129

Phone: (615) 390-0915
Fax: (615) 896-5688
Email: mike@mikejonesaircraft.com

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