Of course, you could try flying a "proper" aircraft, like a Piper Cub, which flies perfectly happy all day (well, until the fuel runs out) with doors open, let alone windows <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> . .. .Or, fly one of the many open-cockpit aircraft, and there's literally nothing to worry about <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> . .. .FFF. .------------