2 WINGTIPS COME TOGETHER DURING INITIAL TAXI OUT OF THE GATE UNDER THE GUIDANCE OF GND MARSHALLER AND OBSERVATION BY A WING OBSERVER.

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WHILE TAXIING OUT OF MY GATE; MY L WINGTIP STRUCK ANOTHER WINGTIP OF ANOTHER ATR72 ACFT. I OBSERVED CGP AT MY L WINGTIP. AS I LOOKED FORWARD; MY LEAD RAMPER WAS WAVING ME STRAIGHT AHEAD. AS I GOT CLRNC FROM RAMP TWR TO THE S L SIDE OUT; I RELEASED BRAKES AND TAXIED FORWARD. I THEN ORDERED MY FO 'FLAPS 15 DEGS.' AS I LOOKED L; I FELT FINE THAT I HAD ADEQUATE SPACING FROM MY ANGLE. I LOOKED FORWARD TO THE LEAD MARSHALLER AS I FOLLOWED COMPANY SOP'S AND PROCS. A BUMP WAS FELT AND I IMMEDIATELY STOPPED THE ACFT. I THOUGHT MAYBE I RAN OVER A CHOCK; BUT COMPANY SAFETY PERSONNEL WERE AT THE ACFT. I TAXIED BACK TO GATE; SECURED THE ACFT; AND WENT OUTSIDE TO CHK WHAT HAD HAPPENED. I FEEL THAT IF THERE WERE QUALIFIED GND PERSONNEL OR WING WALKERS IT WOULD HAVE HELPED. ALSO; IF THERE WERE GOOD GND MARKINGS FOR PARKERS TO FOLLOW WOULD HAVE AIDED. MORE RAMP SPACE AT THE ARPT ALSO WOULD HAVE HELPED. AND AS ALWAYS; A CONSTANT VIGILANCE BY ALL CAPTS IS A MUST FOR SITUATIONAL AWARENESS. SUPPLEMENTAL INFO FROM ACN 505248: RAMPER IN FRONT OF OUR ACFT WAVING US FORWARD. AFTER BUMP WAS FELT; HE THEN MOTIONED FOR US TO STOP. FOUND WE HAD SCRAPED WINGTIPS WITH OTHER ACFT. NOSE RAMPER THOUGHT OTHER RAMPER WAS WATCHING WINGTIP. CAPT THOUGHT BOTH RAMPERS WERE IN PLACE.