VG kits approved for Cessna 170

The FAA has issued an STC for the installation of micro vortex generators on the wings and horizontal stabilizer of the Cessna 170.

While the VGs have no effect on high speed performance, they enhance slow speed maneuvering, according to Micro Aerodynamics officials, who note the VGs provide a 10% reduction in stall speed, improved aileron response in slow flight and a reduced takeoff and landing roll. The overall effect is improved flight characteristics in slow flight along with improved crosswind control, officials said.

Vortex generators assist in keeping the boundary layer attached at high angles of attack, assuring better aileron control into stall speeds. They do not affect cruise speed and do not collect ice.

Kits provide templates for the installation of 76 vortex generators just aft and above the leading edge and another 36 vortex generators that get attached to the underside of the horizontal stabilizer. Made of 6063-T6 aluminum, the VGs are curved to fit the contour of the wing.

Kits for the Cessna 170, with fabric-covered wings, are available for $950 plus shipping and handling. The VGs can be painted to match the base color of the aircraft for an additional $150. Each kit comes with complete, illustrated instructions, Loctite Depend for adherence and all other materials needed to complete the installation, which takes about a day.

For more information: 800-677-2370 or MicroAero.com.