Cox could very well be out of business, but have a look at "Cox" in EBAY and you'll find out how dead it really is ! The newer engines like Norvell are great engines and you can build 15 small airplanes for the cost of only one of your giant planes. And talk about noise, just listen to the flying chainsaws ! We use exhaust throttles on our 1/2A s and there alot quieter than even most 4 strokes. And we don't need a third of the space to fly! All it really takes is patience to work on a small plane( in fact any plane ) ! Most 1/2A s are built up because there aren't many 1/2A ARF's out there!