AN INSTRUCTOR AND STUDENT IN A C150 HAVE A JET BLAST ENCOUNTER WITH AN ACR B727 AND THEIR ACFT IS DAMAGED.

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OUR INITIAL CLRNC; AS GIVEN BY THE GND CTLR; WAS TO TAXI TO PARKING; BUT TO HOLD SHORT OF TXWY D. WE PROCEEDED TO TAXI DOWN TXWY R. AS WE APCHED TXWY D; WE RECEIVED A NEW CLRNC TO PASS BEHIND A B727; PASSING FROM L TO R; ON TXWY D AND TO THEN AVOID TFC TAXIING OUT OF OUR PARKING RAMP. IT SHOULD BE NOTED THAT I AM UNSURE IF THE CTLR CAUTIONED ME TO AVOID THE JET BLAST FROM THE B727; AT THIS POINT. WE BROUGHT OUR ACFT TO A COMPLETE STOP; HOLDING SHORT OF TXWY D; IN ORDER TO WAIT FOR THE PASSING B727. THE B727; AN ACR; PASSED IN FRONT OF US; THEN TO THE R; AND CAME TO A FULL STOP AT THE INTXN OF TXWY D AND RWY 12L; BEHIND THE HOLD SHORT LINE. AFTER THE B727 CAME TO A FULL STOP; I TOLD MY STUDENT TO BEGIN TAXIING ONTO TXWY R IN A FASHION WHERE OUR ACFT WOULD BE HUGGING THE FAR L SIDE OF THE TXWY. AS WE TRANSITIONED MIDWAY BTWN TXWYS R/D; OUR ACFT NOW IN AN OPPOSING DIRECTION TO THE B727; THE BOEING WAS CLRED ACROSS RWY 12L. AS THE B727 THROTTLED UP; I BEGAN TO NOTICE THAT OUR ACFT WAS STARTING TO BUFFET FROM ITS JET BLAST. AT THIS POINT; I TOOK CTL OF OUR ACFT. THE JET BLAST WAS HITTING OUR VERT STABILIZER ON THE R SIDE; THE ACFT THEN YAWED TO THE R AT AN ANGLE PERPENDICULAR TO THE B727. WITH OUR FORWARD MOMENTUM; OUR GND TRACK TOOK US DIRECTLY BEHIND THE B727. HERE I REMEMBER THAT I WAS TRYING TO STOP THE FORWARD MOTION OF OUR ACFT BY APPLYING FULL BRAKES. ALSO; I TRIED TO STEER THE ACFT BACK TOWARDS THE L WITH FULL L RUDDER BUT TO NO AVAIL. I REMEMBER SKIDDING AT AN ANGLE TO THE L; AND; SOON AFTER; I REMEMBER THE ACFT BEING LIFTED INTO THE AIR; R WING AND TAIL FIRST (ALL 3 WHEELS WERE OFF THE GND). THE ACFT STRUCK THE L WINGTIP ALONG WITH THE PROP. AS THE PROP STRUCK THE GND; THE ENG ABRUPTLY STOPPED RUNNING. THE ACFT UP RIGHTED ITSELF AND CAME TO REST ON ALL 3 WHEELS; FACING IN A DIRECTION OPPOSITE OF THE B727. I REMEMBER SOMEBODY ASKING US IF WE WERE OK OVER THE GND CTL FREQ. I REPLIED THAT WE WERE. I SECURED THE ACFT AND MY STUDENT AND I QUICKLY EXITED THE ACFT. AFTER INSPECTING THE ACFT; I CONTACTED GND CTL AND TOLD THEM THAT I WOULD TOW THE AIRPLANE BACK TO PARKING BY PUSHING IT. I WANT TO MAKE IT KNOWN THAT I AM UNSURE OF THE EXACT CONTENT OF THE RADIO XMISSIONS BTWN THE GND CTLR AND MYSELF. WHEN LOOKING BACK ON MY PREVIOUS FLT EXPERIENCE; IT SHOULD BE NOTED THAT I HAVE BEEN IN THIS SAME SIT BEFORE. I HAVE RECEIVED THE SAME EXACT CLRNC BEFORE. I HAVE TAXIED BEHIND THIS SAME TYPE OF ACFT (LAST TIME; A FREIGHTER B727) BEFORE; ALONG WITH OTHER TYPES OF LARGE ACFT (ANOTHER PAX B727; A FREIGHTER DC8; ALONG WITH OTHERS); AND ALL OF THIS HAPPENING AT THE SAME TXWY INTXN. I WANT TO EMPHASIZE THAT IF THIS SIT NEVER HAD OCCURRED AND THIS TYPE OF SIT PRESENTED ITSELF AGAIN; I WOULD HAVE PROBABLY ACCEPTED THE SAME CLRNC AND PASSED BEHIND THE STOPPED ACFT; AS I HAVE DONE IN THE PAST. I ALSO WOULD LIKE TO EMPHASIZE THAT I WOULD HAVE NOT ELECTED TO TAXI ON BEHIND THE ACR B727 IF I HAD SEEN THE ACFT POWERING UP TO TAXI ACROSS RWY 12L; OR IF I HAD KNOWN THAT IT WAS GOING TO BE CLRED TO TAXI ACROSS RWY 12L; FROM A DEAD STOP.