Better Performance For Mooney M20A-G, M20J Operators

Hartzell Propeller announced at AirVenture 2007 this week it has received an STC to install a newly designed, two- bladed 74" diameter blended airfoil Top Prop performance conversion kit onto Mooney M20A-G and M20J models.

Hartzell tells ANN it optimized the new blended airfoil design to deliver greater cruise performance at higher airspeeds. Flight tests with an M20F have confirmed an increase of 2-4 knots in normal cruise over the original Hartzell two-bladed propeller while maintaining equivalent climb performance. The improvement in cruise was achieved at the expense of a slightly longer take-off roll that has been observed at about an extra 3%.

"Tests also confirmed that performance levels increased along with power settings and airspeed levels. So the higher the airspeed and the higher the power settings the greater the performance improvement that we observed in cruise levels," said Mike Trudeau, Director of Hartzell's Top Prop Performance Conversion program.

Restrictive placards on the A-D, G and J aircraft have been removed entirely while the restriction on the E and F models has been reduced to simply no continuous operation above 24” of manifold between 2350 and 2550 RPM.

On all models of the aicraft, the repetitive inspections required by AD2006-18-15 have been eliminated.

The new Mooney Top Prop kit comes with the propeller, a highly-polished spinner, STC paperwork and a three-year/1000-hour warranty, at a list price of $6,995.

FMI: www.hartzellprop.com