2 RATED PLT ABOARD A C170 ENTER THE DC ADIZ WITHOUT AUTH. PLT WERE USING AN OUTDATED CHART THAT DID NOT DISPLAY THE ADIZ.

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ON A PLEASURE FLT BTWN DOVER; DE; AND WINCHESTER; VA; I DEPARTED CHANDELLE ARPT HEADED FOR WINCHESTER. THIS WAS A VFR FLT THAT NECESSITATED NAVING NEAR AND POTENTIALLY THROUGH CLASS B AIRSPACE IN THE BALTIMORE AREA. I CALLED FSS TO FIND OUT ABOUT TFRS IN THE AREA AND ANY OTHER RESTRS OR ENHANCEMENTS TO THE AIRSPACE. ABOUT 10 MI FROM THE CLASS B AIRSPACE AS DEPICTED ON MY SECTIONAL CHART; I RADIOED BALTIMORE APCH. AFTER CALLING THEM A NUMBER OF TIMES; I DID NOT HEAR A REPLY TO MY CALL. THE AIR WAVES WERE EXTREMELY BUSY WITH MUCH STATIC AND VARIOUS OTHER CALLS BEING STEPPED ON. I REMAINED CLR OF THE CLASS B AIRSPACE GOING JUST UNDERNEATH THE RING AND GENERALLY IN THE DIRECTION I NEEDED TO GO. HOWEVER; DUE TO THE CONGESTION OF AIRSPACE IN THIS AREA; I PURSUED A CLASS B TRANSITION. FINALLY I BEGAN TO GET A LITTLE NERVOUS. IT WAS THEN THAT I REALIZED THAT THE SECTIONAL CHART WHICH I WAS USING FOR NAV WAS OUT OF DATE. I HAD INADVERTENTLY GRABBED 1 OF 2 SECTIONALS FOR WASHINGTON. I ALWAYS KEEP OLDER SECTIONALS AROUND TO MARK UP WITH PEN AND PENCIL; KEEPING THE NEWER ONES CLEAN AND MORE READABLE. THE ONE I MISTAKENLY SELECTED WAS INDEED OUT OF DATE (BY 8 MONTHS -- IT WAS THE PRECEDING CHART THAT HAD BEEN ISSUED). IN THE CONFUSION OF MAKING RADIO CALLS UNANSWERED; NAVING COMPLEX VFR AIRSPACE; STAYING CLR OF CLASS B AIRSPACE; ETC; I WAS ALSO USING AN OUT-OF-DATE CHART. I THEN ASKED MY FRIEND (WHO WAS ASLEEP) TO HELP ME OUT AND LOOK FOR THE CURRENT CHART WHICH I KNEW WAS IN THE PLANE. HE FINALLY FOUND IT AFTER SEVERAL MINS. JUST ABOUT THAT TIME I HEARD A RADIO CALL FROM APCH LOOKING FOR AN ACFT SQUAWKING 1200. I ASSUMED THAT THE CALL WAS MEANT FOR ME -- THE RETURN RADIO CALL FROM APCH. MY FRIEND AGAIN HELPED OUT AND ANSWERED THE CALL AND OBTAINED A SQUAWK CODE FOR ME. I STUDIED THE MORE UP-TO-DATE CHART AND WAS SHOCKED TO FIND THAT THE DC ADIZ INCLUDED THE AREA IN WHICH I WAS FLYING! -- NOT SO WITH THE PREVIOUS SECTIONAL CHART. I HAD ENTERED THE ADIZ WITHOUT OBTAINING A SQUAWK CODE AND HAD PROCEEDED ABOUT 5 MI INTO IT BEFORE GETTING A CODE. SHORTLY THEREAFTER; THE VOICE ON THE RADIO ASKED ME TO CALL A PHONE NUMBER ONCE WE LANDED. AGAIN MY FRIEND MADE THE CALL TO EXPLAIN WHAT HAD HAPPENED; AS HE IS MORE EXPERIENCED THAN I WHEN IT COMES TO THIS TYPE OF MATTER AND I; REALIZING THAT I HAD MADE A FLT INTO ADIZ AIRSPACE; THOUGH JUST A SHORT WHILE; WAS VERY SERIOUS INDEED. MY FRIEND CALLED THE NUMBER; BUT RATHER THAN LISTEN TO HIS EXPLANATION THEY SIMPLY ASKED FOR AND WERE GIVEN HIS NAME AND PLT CERTIFICATE NUMBER. ACTUALLY HE TRIED TO EXPLAIN THAT I WAS PIC BUT THEY APPARENTLY WERE SO BUSY AND RUSHED THEMSELVES THAT HE COULD NOT GET A WORD IN EDGEWISE AND SO IT WAS LEFT AT THAT. THEY PROBABLY ASSUMED THAT HE WAS PIC. HOWEVER; I HAD PLTED THE PLANE INTO AN ADIZ BY VIRTUE OF HAVING REFED THE WRONG CHART AND DID NOT HAVE THE SIT CORRECTED UNTIL I RECEIVED A SQUAWK CODE ABOUT 5-10 MI INTO THE ADIZ. I NEVER DID GET A CLASS B TRANSITION. I REMAINED ON THE CODE UNTIL EXITING THE ADIZ. I KNOW THAT ANY FLT INTO SUCH AN AIRSPACE IS VERY SERIOUS. HOWEVER; I CAN SEE THAT WITHOUT UP-TO-DATE INFO OF ALL KINDS THAT SUCH AN EVENT IS POSSIBLE.