Originally Posted by sadiqhassan
...On a side note, whats the difference between an AB3 and an AB6? EK flew A300-600Rs (what does the "R" stand for?) and designated them as AB3s
The R stands for "extended range" (but Boeing uses ER, so of course Airbus has to be different). The last model of the A300 was modified to include an extra fuel tank in the tailplane and this became the R model. The R can also stand for "reduced crew" as the original A300 had a 3 man cockpit, changed to be just 2 pilots (like all the current planes). But that change was actually in the -600 and not unique to the -600R.