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Certified Noise Level 8 dB(A) Below ICAO Chapter X Limit PIQUA, Ohio – November 5, 1999 — Hartzell Propeller Inc., today announced the results of noise testing in Germany of its Cessna Caravan STC. A certified noise level of 76.9 dB(A) was achieved which is more than 8 dB(A) below the ICAO Chapter X limit, […]
Highly Swept Hartzell Propeller System Helps Lancair Set A New Class Record Qualifying At 335 MPH PIQUA, Ohio — October 28, 1999 — Hartzell Propeller Inc. announced today that its specially designed experimental propeller system for the Lancair IV Sport Class Champion at the Reno National Championship Air Races incorporated a variety of advanced design […]
Four-Blade Composite Prop Selected for PT6 Turbine Conversion of the Piper Malibu/Mirage PIQUA, Ohio — October 22, 1999 — Hartzell Propeller Inc., today announced the development of a four-blade blade composite propeller for the JetPROP DLX, a Pratt & Whitney PT6 turbine conversion of the Piper Malibu/Mirage. The propeller has passed the required testing and […]
PIQUA, Ohio — August 10, 1999 — Hartzell Propeller Inc. announced today that it has received a Supplemental Type Certificate (STC) for Piper Twin Comanche PA30 and PA39 aircraft including those fitted with counter-rotating and turbocharged engines. The new two-bladed propellers are 70 inches in diameter and feature Hartzell’s exclusive “Q-tip” tip design. The conversion […]
PIQUA, Ohio — Hartzell Propeller Inc. announced today that it had completed preliminary performance and acoustical testing of its AGATE/GAP propeller concept. The new system consists of aluminum blades with full 25° tip sweep and very high lift airfoils. This initial testing series on a Piper Saratoga testbed simulating the GAP engine, demonstrated a flyover […]
PIQUA, Ohio — June 23, 1999 — Hartzell Propeller Inc. announced today that its 93-inch diameter three-bladed aluminum, fully reversing turbine propeller system for the Turbo Raven recently helped the aircraft achieve a series of new world climb records. The Turbo Raven is a highly advanced, light weight carbon graphite based aircraft intended for high […]
