VC-10 Aerobatic Certification

I heard some people claiming the VC-10 had an aerobatic certification. I tired searching the web to confirm this but I haven't found anything.
Did it have an aerobatic certification? What exactly is meant by "aerobatic certification"? What kind of maneuvers can you do, that you can't do on other liners?
Did it have an aerobatic certification? What exactly is meant by "aerobatic certification"? What kind of maneuvers can you do, that you can't do on other liners?