Black Caviar finally boarded a plane heading towards Britain on Wednesday for her hugely-anticipated appearance in the Diamond Jubilee Stakes at Royal Ascot.

Peter Moody's mare has become one of the all-time greats in Australian racing after her remorseless rise through the sprinting division, and will be looking for her 22nd victory from as many starts on 23 June.

Moody has taken no chances as Black Caviar makes her first overseas trip, fitting her with a special compression suit for a journey of more than 30 hours with several stopovers.

Racing Victoria's Twitter feed said: "Black Caviar has emerged from her float at Melb Airport decked out in her famous compression suit. UK here she comes!"

Adding: "Singapore Airlines SQ7297 about to taxi out with Black Caviar aboard. Cargo includes A380 engine and fruit & veggies! First stop Singapore."

Black Caviar should arrive at her quarters in Newmarket on Friday and will be accompanied by her vet, exercise rider and the stable foreman.

Such is her dominance, and lack of likely opposition, bookmakers make her a best-price 1-2 to maintain her unbeaten record.