Here comes The TDN SR-22

Tornado Alley Turbo (TAT) has developed an electronically-controlled turbocharger wastegate for the existing fleet of Turbonormalized Cirrus SR22.

This new electronic engine control takes the popular “Turbonormalized” engine option to still another level of enhanced performance. The Turbonormalized Cirrus SR 22 aircraft has long been referred to as “TN SR-22s.” With the addition of this new electronic turbo wastegate controller, the system will manage the mass air flow to the engine to account for both ambient pressure changes and, now, also, extreme ambient temperature conditions.

As enhanced with the new controller from Tornado Alley, the previous TN SR-22 aircraft is re-named the TDN SR-22 aircraft, to signify that the engine is Turbo Density-Normalized. This electronic engine control, in design and testing for the past several years, has performed flawlessly through extensive flight testing.

Owners of TN SR-22 aircraft equipped with this new electronic engine control will enjoy significant performance improvements over the previous TN SR22 aircraft. These performance improvements include more than 7 knots of speed increase during warm and hot weather operation, and as much as a 33% improvement in ROC in the popular LOP climb mode of flight. Installation of the TDN system allows the removal of multiple heavy, complex and maintenance intensive components from under the cowl in the traditional turbo system. A weight savings of approximately 3 pounds is achieved with the TDN system.

The new TDN system employs an electrically-actuated wastegate and an electronic control with significant new capabilities. It works equally well on all turbocharged piston aircraft as well as the turbonormalized TDN SR-22. The system is the first part of a series of new, modular, electronic engine controls being developed for TAT by General Aviation Modifications, Inc. (GAMI) for use on a wide range of aircraft, including the SR-22, the Cessna T-210, the Cessna 400 series, and many other aircraft in the general aviation fleet.

“This enhanced design for the TN Cirrus SR-22 is another example of GAMI and Tornado Alley Turbo's continuing commitment to industry-leading research and development for General Aviation," said Tim Roehl, TAT president. "Going back to the Wright Brothers, most significant improvements in aviation have been based upon continuing advances in aircraft powerplants. We truly enjoy the development of this kind of new engine technology for General Aviation.”

FMI: www.taturbo.com