Thanks Pilot DAR, that's a great answer - just what I needed! One more for you (or anyone!) :
What does ARC mean? I've seen it in some ads, and I think it pertains to engines with quite some hours on them, but I don't really know. It may be a CAA/JAR thing so, looking at your location, not sure if you can help, but thanks again for your original answer.
Always trying to learn, PP.
