CRJ700 FLT CREW EXECUTES A GAR AT SLC DUE TO ACFT ON TKOF ROLL.

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ON VISUAL APCH TO RWY 16L AT SLC AND 2 MI FINAL; TWR CTLR CLRED AIRBUS INTO POS AND HOLD. AIRBUS SLOWLY TAXIED ONTO RWY. WE PREPARED FOR THE GAR. AIRBUS THEN CLRED FOR IMMEDIATE TKOF. AIRBUS ACCELERATED AND ROTATED WHEN OUR ACFT WAS AT 250 FT AGL. AIRBUS WAS WHEELS UP WHEN WE WERE INSTRUCTED BY TWR TO GO AROUND. I BANKED L TO PARALLEL THE RWY ON THE E SIDE OF THE FIELD SO AS TO SEE THE AIRBUS DURING CLBOUT. AIRBUS CLRED FOR A CLBING R TURN TO 280 DEGS OR 245 DEG HDG; WE WERE THEN CLRED 'R TURN HDG 280 DEGS; MAINTAIN VISUAL WITH THE AIRBUS AND REMAIN S OF HIM.' TURNING TO HDG 280 DEGS; WE LOST SIGHT OF THE AIRBUS UNDER OUR NOSE; BUT HAD HIM ON TCAS TO OUR S; CLBING INTO US. WE ELECTED TO KEEP HIM IN SIGHT BY TURNING FURTHER R 5-10 DEGS ON THE THEORY YOU WON'T HIT WHAT YOU CAN SEE. THIS ALSO KEPT US FROM OVERFLYING AN ACFT THAT WAS CLBING INTO US AND OUT-PERFORMING OUR CRJ. ONCE AGAIN INSTRUCTED BY TWR TO FLY 280 DEGS HDG S OF AIRBUS. THIS WAS IMPOSSIBLE WITHOUT TURNING INTO THE AIRBUS THAT ONLY THE CAPT COULD SEE OFF OUR L SIDE LOW. I REGAINED VISUAL WITH THE AIRBUS AT 12 O'CLOCK POS; 300 FT LOWER AND ABOUT 2500 FT (HORIZLY) OFF OUR NOSE. I WAS THEN COMFORTABLE TURNING TO HDG 250 DEGS TO GET S OF THE AIRBUS AS CTLR WAS INSISTENT ON US BEING S OF THE AIRBUS. ONCE S OF AIRBUS; RETURNED TO 280 DEG HDG AND KICKED OVER TO DEP. VECTORED TO AN UNEVENTFUL LNDG ON RWY 16R.