If my face was on fire, I'd rather be hit with Halon than CO2 any day of the week! I keep a halon ext in my field box for the "just in case" but use CO2 to put out anything of any significance. A 1 lb halon fire ext weighs very little and meets the standard. I suppose if I was flying a kingcat or a boomerang, with an exposed engine, I would just carry the halon one to meet the rule, as there is not really much chance that if there was a fire, a blower could blow it out. As opposed to a bypassed airplane with intakes where you would want to blow lots of CO2 down the intakes.

But yes, Halon meets the rule, and works perfect for our application. I buy them on ebay for $40.00 or so, and if I use it, I throw it away and buy another one on ebay.