CONFUSION REF CLRNC LEADS TO POSSIBLE PENETRATION OF RESTR AREA.

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AFTER INITIALLY BEING CLRED 'DIRECT TO MQI' BY ZTL; WE WERE CRUISING AT 7000 FT ABOVE A WIDESPREAD OVCST LAYER N OF THE KINSTON VOR WHEN ZDC ASKED OUR HDG AND GAVE US A MORE NORTHERLY STEER TO KEEP US W OF R-5314. AT THAT TIME I ASKED; 'DO YOU WANT US TO MAINTAIN THIS HDG UNTIL WE INTERCEPT V-189?' HE SAID; 'AFFIRMATIVE; INTERCEPT V- 189 AND THEN DIRECT MQI.' ANOTHER HDOF AND ANOTHER NORTHERLY STEER AND NO ADDITIONAL CLRNC INSTRUCTIONS. 5 OR 10 MINS LATER WE INTERCEPTED V-189 (VERIFIED BY VOR AND GPS) AND TURNED E. A COUPLE MINS LATER THE CTLR ASKED OUR HDG AND SAID WE HAD ENTERED R-5314 AND INSTRUCTED US TO TURN N AGAIN. I SAID 'OUR CLRNC WAS TO INTERCEPT V- 189.' HE REPLIED; 'THAT WAS FROM THE PREVIOUS CTLR.' AT THIS TIME THE OTHER PLT AND I WERE WONDERING 'WHO'S IN CHARGE HERE?' WE WERE FOLLOWING OUR LAST INSTRUCTIONS; KNEW WE WERE CLOSE TO R-5314 AND DID NOT TURN UNTIL OUR COURSE WAS VERIFIED. IF WE WERE ON THE AIRWAY; AS OUR EQUIP INDICATED; HOW COULD WE HAVE INTRUDED IN R-5314? HAS IT BEEN MOVED? THE REST OF THE FLT WAS UNEVENTFUL TO THE EXTENT THAT WHEN WE ARRIVED OVER OUR DEST; WE SAW A LARGE HOLE IN THE OVCST AND PROCEEDED TO THE DEST VFR. THE 'HOLE' WAS ABOUT 25 MI BY 10! I HAVE FLOWN THE RTE SEVERAL TIMES PREVIOUSLY AND FIND THAT NAV IN THIS AREA IS DIFFICULT WITHOUT LORAN; GPS; OR VFR CONDITIONS BECAUSE AN INTEGRAL PART OF THE AIRWAY (V-189) IS 'OUT OF SVC INDEFINITELY.' THE RBX VOR NEEDS TO BE REPAIRED! ANOTHER THING THAT COULD HELP IS TO ESTABLISH A 'FIX' ON THE AIRWAY NEAR THE 'CHANGEOVER POINT' TO MAKE CLRNCS AND CLRNC LIMITS MORE ACCURATE AND LESS CONFUSING TO PLTS AND CTLRS.