HL Falbaum wrote:
The guy at 18,500 is a) IFR, b) alt set on 29.92, c) his ALT should have had
a static check for IFR, d) in contact with ATC, squawking ALT on his mode C
transponder. e) moving fast and bigger than you!

If you are there ---you should have a TPAS or TCAS or a transponder.

And I believe ATC won't allow him to fly at FL185 if that is only 500
feet above 18,000 msl. Isn't the minimum clearance to 18,000'msl at
least 1000 feet?

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly
* "Transponders in Sailplanes" http://tinyurl.com/y739x4
* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org