Wed, Jan 19, 2011
Hartzell Propeller Introduces New 2-Bladed Scimitar Top Props
for Piper Aztec Aircraft
Hartzell Propeller has developed a new 2-bladed Top Prop
propeller conversion kit for Piper PA-23-250 Aztec twin-engine
aircraft. The cost-efficient conversion provides Aztec owners with
improved reliability, performance and noise levels.
Hartzell Aztec Top Prop
The new 77-inch diameter propeller uses blade-mounted
counter-weights to provide redundant assistance to the propeller
pitch control and feathering system versus the original
configuration that relies heavily on an air pressure charge for
these functions. Hartzell says the unique swept-tip Scimitar
"blended airfoil" blade design used in this conversion provides an
increase in cruise speed of two to three knots as well as a noise
reduction of almost 2 dB(a).
The new propellers are available for Piper Aztec PA-23-250 C to
F models, serial numbers 27-2505 through to 27-8154030, installed
with Lycoming IO-540-C4B5 or TIO-540-C1A engines. They replace
Hartzell's 2-blade aluminum non-counter-weighted propeller models
normally installed on these aircraft. Hartzell's Top Prop program
manager, Mike Trudeau said, "Hartzell's new Top Prop conversion for
Piper Aztec aircraft will provide owners with one of the most
cost-efficient ways of improving aircraft value through improved
reliability, performance and noise levels."
The kit can be ordered with either a 14 or 28 volt de-ice system
and includes composite spinners. Total installed weight is 62
pounds per side. Installation time is reportedly just a few hours,
and the conversion does not require any change to the propeller
governors.
Available directly from Hartzell or through Hartzell's Top Prop
dealers, the basic kit is offered at an introductory retail price
of $21,950, with a three-year / 1,000-hour warranty and six-year /
2,400-hour TBO.
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