Pictures: Cirrus joins the Coanda contingent

I had my first good look at the Cirrus SF50 Vision jet's tail pipe  the evening of 6 October 2010 at an owners gathering in Manassas, Virginia.

Like Piper (click here for previous post), Cirrus has selected a passive Coanda tail pipe for its Williams International  FJ33-4A-19-powered single-engine personal jet. Like Piper, the company wanted to reduce the effects of pitch moments when engine power is changed, a result of having an engine mounted above longitudinal axis of the aircraft. The Coanda effect in effect deflects the exhaust upward in this case, reducing the pitching moment of the engine thrust around the CG.

Cirrus chieft test pilot Mike Stevens tells me the Coanda spout has the equivalent effect of canting the exhaust nozzle by 14 degrees, leaving just a "small delta" in pitch moment on go-around.

Here are a few more pictures of the aircraft, and a short video of a high speed pass by Stevens during a 10-minute demo.