Keywords
Citation
(2003), "Three-bladed prop conversion for the Piper Comanche 260C", Aircraft Engineering and Aerospace Technology, Vol. 75 No. 5. https://doi.org/10.1108/aeat.2003.12775ead.003
Publisher
:Emerald Group Publishing Limited
Copyright © 2003, MCB UP Limited
Three-bladed prop conversion for the Piper Comanche 260C
Three-bladed prop conversion for the Piper Comanche 260C
Keywords: Blades, Propellers, Aircraft
Hartzell Propeller Inc. recently announced the availability of a new propeller conversion for the Piper Comanche 260C (PA24-260C). The new 77inch diameter prop is designed for compatibility with both the normally aspirated 10-540-N1A5 and the turbocharged 10-540-R1A5 engines used in the "C" model 260 Comanche. The system has an extended hub to accommodate the 260C cowling and will reportedly deliver improved overall performance and reduced maintenance costs compared to the original equipment two-bladers. The new kit completes Hartzell's line of propeller conversions available for the 260 Comanches (Plate 2).
Plate 2
Hartzell's new top prop three-bladed propeller system with extended hub for the
260C
The new Comanche 260C propeller system is designed with a blade twist distribution that maximises low speed thrust while maintaining or increasing cruise performance. The new prop also features a trailing edge extension (Synchro-Pulse) aligned with the engine induction inlet which is designed to provide a more intense pressure pulse to increase the manifold pressure. This new propeller is part of Hartzell's growing family of proven, constant speed designs that feature a compact aluminium hub and aluminium blades. The prop conversion is fully compatible with other popular Comanche mods such as those offered by Lopresti Speed Merchants.
The new prop also feature's Hartzell's scimitar shaped tip sweep and an airfoil designed to provide flight performance improvements over the original equipment two-bladers. These include: superior acceleration, take-off and climb, lower cabin and flyover noise levels, as well as a shorter overall diameter which will reduce tip erosion and extend service life. The system also delivers an improved 2,400 h/6 year TBO and the exclusive Hartzell Plus Three warranty which provides a full 3 years or 1,000 h of coverage.
Details available from: Hartzell Propeller Inc. Tel: +1 937 778 4200; Fax: +1 937 778 4321; Web site: www.hartzellprop.corn