FLC OF AN LTT CPR JET FAILED TO FOLLOW THEIR DEP CLRNC RESULTING IN PENETRATING CLASS B AIRSPACE.

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DEPARTING FDK UNCTLED ARPT; THE COPLT CONTACTED BWI CLRNC DELIVERY FOR OUR IFR CLRNC ON COM #2. I MONITORED UNICOM ON COM #1. COPLT RECORD CLRNC OF 'CLRED TO HTS; RWY HDG FOR VECTORS EMI-LIN J134 J6 HUQ DIRECT. MAINTAIN 3000 FT. DEP 133.0 SQUAWK XXXX.' TFC WAS DEPARTING RWY 23. THERE WERE 3 SINGLE ENG ACFT DEPARTING RWY 23 IN FRONT OF US AND 1 ACFT DOING TOUCH AND GOES. ON DEP WE MAINTAINED RWY HDG AND CLBED TO 3000 FT; CLR OF THE FDK TFC PATTERN WE ATTEMPTED TO CONTACT BWI DEP. RADIO XMISSIONS WENT UNANSWERED FOR 2-3 MINS. AFTER CONTACT; BWI RPTED NO RADAR CONTACT CLB AND MAINTAIN 4000 FT. AT 4000 FT; BWI ASKED RADIAL AND DISTANCE FROM EMI. WE RPTED AND BWI TOLD US OUR CLRNC HAD BEEN DIRECT EMI (NOT RWY HDG FOR VECTORS). WE WERE THEN TOLD TO TURN R TO HDG OF 090 DEGS FOR EMI. DURING THE TURN WE TUNED IN ARMEL VOR ON THE #2 NAV AND AS WE WERE ON THE 320 DEG RADIAL AND 23 NM PUTTING US CLR OF THE IAD/BWI/DCA TCA; WE ELECTED TO CANCEL IFR AND PROCEED VFR TO OUR DEST. I BELIEVE WE NEED TO BE ABLE TO PICK UP CLRNCS FROM FDK PRIOR TO BEING READY TO TAXI SO THAT BOTH PLTS CAN BE INVOLVED IN PICKING UP THE CLRNC. I DID NOT MONITOR CLRNC DELIVERY WHILE THE COPLT RECEIVED THE CLRNC BECAUSE I WAS ON UNICOM TAXIING FOR DEP. I DO NOT KNOW WHICH CLRNC WAS RECEIVED; RWY HDG OR DIRECT EMI. I NOW KNOW; HOWEVER; BWI EXPECTED US TO FLY DIRECT EMI. THE RTE THAT WE DID FLY TOOK US INTO DULLES APCH CTL AIRSPACE AND INTO THE NORTHERN EDGE OF THE IAD TCA. LACK OF RADAR COVERAGE AT 3000 FT EXTENDED THE TIME IT TOOK TO RECOGNIZE THAT WE WERE FLYING A DIFFERENT FLT PATH THAN BWI HAD EXPECTED.