MIDWEST AIRCRAFT PROPELLERS, Inc., is your one-stop source for Hartzell's TOP PROP Performance Conversion. To date, literally thousands of pilots have discovered that MORE BLADES EQUALS MORE PERFORMANCE. For many, a propeller conversion is one of the most significant improvements that can be made.

Advancements in propeller design can directly address performance areas such as takeoff distance, rate of climb, noise level, and vibration. Additionally, for many, the benefits can also include improved ground clearance, longer overhaul intervals, elimination of Airworthiness Directives, elimination of tachometer placards, a new propeller warranty, increased safety, and improved appearance. On certain aircraft, a switch to a prop with more blades will even provide greater flexibility in selecting effective power settings, as well as improved drag characteristics that are helpful for fast descents.

While it appears that maximizing the efficiency of aircraft with the lower horsepower and higher RPMs of smaller piston engines would usually call for fewer blades, it must be noted that 2-bladed props do have some inherent disadvantages. These may include an increase in noise level, both external and in the cabin, and an increased potential for vibration.

Hartzell's TOP PROP Performance Conversion includes STC’d applications involving most Beechcraft, Cessna, Mooney, Piper, and other general aviation aircraft where performance in every category is desirable and must be part of the propeller’s design. All TOP PROP Performance Conversions sold by MIDWEST AIRCRAFT PROPELLERS, Inc., include Hartzell's ironclad Plus Three™, 3-year or 1,000-hour total warranty, and the MIDWEST AIRCRAFT PROPELLERS' record of always standing 100% behind the work we do.

Remember, Hartzell Top Prop pilots enjoy the longest TBO standards in the industry; 2,400 hours/6 years for piston and 4,000 hours/6 years for turbine driven aircraft. These kits also include new mirror finished aluminum alloy spinner assemblies. Two-blade to two-blade conversions are also available to replace obsolete propellers, where performance would be unchanged across the flight envelope.