The dual system will also facilitate the installation of a glassier cockpit than is now installed in the SR22. This system will also run the FADEC if it is blessed to do so by the FAA. Cirrus calls the systems primary and secondary though the secondary system might also be called the essential bus, running as it does the flight instruments and selected avionics. The SR22 has two batteries, two alternators and two buses. This might be done with a standby battery, but the most logical way to do it is with a dual electrical system, a nice thing to have with or without FADEC. Because FADEC requires electrical power, there is a requirement for dual systems and enough power to operate the FADEC after any imaginable electrical problem-at least until the fuel is exhausted.
#Cirrus sr22 specs full
The other is the coming of full authority digital engine control, FADEC, currently being tested at Continental and almost ready. One is that vacuum pumps have been a high warranty item. There are good reasons for the choice of electric power. The Porsche-powered Mooney PFM is the only other contemporary all-electric single. The SR22 is almost unique in being an all-electric airplane. The elevator horns were also changed.Ī big change is in the electrical system. The angle of incidence of the horizontal tail was changed on the SR22 to retain flying qualities with the increased horsepower.
The longer wing and the increased weight (the SR22 maximum takeoff weight is 500 pounds greater, at 3,400 pounds) are said to enhance the landing qualities of the airplane, but after flying both, all I can say is that both are nice airplanes to land. More horsepower meant more fuel and that, too, required an internal change in the wing.
The 22 wing has more span, which, with its higher maximum takeoff weight, requires a larger and stronger wing spar. That is a big increase.Įven though the two airplanes look alike, they are actually quite different. Where the original production Cirrus, the SR20, flies with a 200-horsepower IO-360 six-cylinder Continental, the SR22 has an IO-550 Continental six that develops 310 horsepower. The natural evolution of airplanes is to increase the power, and that is just what Cirrus Design has done with its new SR22.
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