As for using the UAT as a filtering system I personally wouldn't reccomend that. It is soley designed to ensure the elimination of air bubbles in all realms of flight manuevers. The basic header tank can work, but with some of the hard and extreme manuevers we do coimbined with the high fuel draw it is possible to have an air bubble flow out of the header tank through the pump and to the engine. I can assure you the header tank isn't always full during operation. The UAT isn't either for that matter. But with teh membrane bag inside it eliminates the air bubbles so we don't have a problem.

On a $6,000+ jet, it just seems like cheap insurance to a possible flame out.

Proper use of the tank is to mount it where the fiiting side is angled up at approximately a 30 degree angle. You can find this info on the BVM web site I believe under the tips section. I had a flameout in my Mig at Lubbock this year and was able to attribute it to a UAT coming loose from its mount and pointing down inside the jet. No fault of the tank or system, just my installation that gave up after many flights on the airframe. I used to secure the UAT with velcro, but now it is secured on a wooden mount with a velcro strap all the way around.

John Redman
Team BVM, Jet Cat USA, Shultze Chargers

and currently stuck in Marietta Georgia for about a month with nothing to do