LGW-ANU why 40 min added?

Curious as to why 40 minutes have been added to VS LGW-ANU (VS & BA were both 8H 40m, VS now 9H 20m). Seems a long time extra in the air but not long enough for a stop, anyway it's still listed as 0 stops.
ANU-LGW is now + 15m, which seems a more understandable alteration.

(And yes, I do know what killed the cat!)

depends on the plane allocated.

I think the A330 is a little slower than a 747 (or vice versa)

Pretty sure original booking was A330 (2 cabin). Revised flight time A330 3 cabin, must be all the UC slowing things down!

Yep, probably plane type allocated. The A330 is a little slower than 747 or 777(which BA use).

I think the 330 flies at about 3 minutes and hour slower than the 747.

I think the 330 flies at about 3 minutes and hour slower than the 747.

That's really interesting. Thanks wwings
Would that also be true of an A340?

I think the 330 flies at about 3 minutes and hour slower than the 747.

That's really interesting. Thanks wwings
Would that also be true of an A340?

Depends.. the A340-600 flies faster than the A340-300 for example. (ie 600 flies more like a Boeing, and the 300 more like a 330 if that makes sense)

Depends.. the A340-600 flies faster than the A340-300 for example. (ie 600 flies more like a Boeing, and the 300 more like a 330 if that makes sense)

That is interesting. I was thinking that the A343 and A346 were only marginally different.