Narrative:

Clearance for departure from runway 34L was arsenal 1 departure (ARSNL1.csn). After contacting departure control, ATC was slow in responding, and after responding, ATC was trying to radar identify my plane. Clearance had transposed 2 numbers in the clearance, and until that was sorted out, ATC did not issue any heading or altitude changes. In the meantime, I flew approximately runway heading at 800 ft (shown as an absolute altitude in the pictorial depiction) until intercept with the 056 degree radial of csn. At that point, I initiated a climb to 2000 ft and was immediately cleared to 6000 ft. At that time, ATC implied I flew the SID erroneously and said I was to review the procedure. The following day, I spoke to a controller and a manager at potomac TRACON. They insisted, initially I was to climb to 800 ft as the narrative reads and turn, climbing to 2000 ft to intercept the 056 degree radial outside of or using GPS at shrli. I believe the SID is defective and should be changed since it is subject to misinterp for the following reasons: 1) the turn not being specified, could be as little as 1 degree, an amount sufficient to comply, but not enough to vacate the extended runway centerline. 2) the 800 ft atl is a 'hard' altitude for the runway centerline. 3) the depiction strongly implies the climbing turn is in fact the interception of the radial (needle movement) and in the narrative, we are given to understand we need to intercept outside of shrli, but with a 'not to scale' drawing, we get no heading guidance. Theoretically, we could get needle movement about when we reach 800 ft, but we do not. 4) the departure is not allowed for runways 16L&right because too many pilots were violating the restr airspace. The correction is simple: 'fly runway heading until 800 ft, turn to a heading of XXX degrees until intercepting 056 degree radial while climbing to 2000 ft.' change the chart to agree with the narrative. TRACON advised to set shrli in GPS and fly direct in the phone call. This is not a GPS departure. Lots of confusion.

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Original NASA ASRS Text

Title: C210 PLT MISINTERPS THE PUBLISHED DEP AND FLIES RWY HDG VICE TURNING AT 800 FT WHILE DEPARTING HEF.

Narrative: CLRNC FOR DEP FROM RWY 34L WAS ARSENAL 1 DEP (ARSNL1.CSN). AFTER CONTACTING DEP CTL, ATC WAS SLOW IN RESPONDING, AND AFTER RESPONDING, ATC WAS TRYING TO RADAR IDENT MY PLANE. CLRNC HAD TRANSPOSED 2 NUMBERS IN THE CLRNC, AND UNTIL THAT WAS SORTED OUT, ATC DID NOT ISSUE ANY HDG OR ALT CHANGES. IN THE MEANTIME, I FLEW APPROX RWY HDG AT 800 FT (SHOWN AS AN ABSOLUTE ALT IN THE PICTORIAL DEPICTION) UNTIL INTERCEPT WITH THE 056 DEG RADIAL OF CSN. AT THAT POINT, I INITIATED A CLB TO 2000 FT AND WAS IMMEDIATELY CLRED TO 6000 FT. AT THAT TIME, ATC IMPLIED I FLEW THE SID ERRONEOUSLY AND SAID I WAS TO REVIEW THE PROC. THE FOLLOWING DAY, I SPOKE TO A CTLR AND A MGR AT POTOMAC TRACON. THEY INSISTED, INITIALLY I WAS TO CLB TO 800 FT AS THE NARRATIVE READS AND TURN, CLBING TO 2000 FT TO INTERCEPT THE 056 DEG RADIAL OUTSIDE OF OR USING GPS AT SHRLI. I BELIEVE THE SID IS DEFECTIVE AND SHOULD BE CHANGED SINCE IT IS SUBJECT TO MISINTERP FOR THE FOLLOWING REASONS: 1) THE TURN NOT BEING SPECIFIED, COULD BE AS LITTLE AS 1 DEG, AN AMOUNT SUFFICIENT TO COMPLY, BUT NOT ENOUGH TO VACATE THE EXTENDED RWY CTRLINE. 2) THE 800 FT ATL IS A 'HARD' ALT FOR THE RWY CTRLINE. 3) THE DEPICTION STRONGLY IMPLIES THE CLBING TURN IS IN FACT THE INTERCEPTION OF THE RADIAL (NEEDLE MOVEMENT) AND IN THE NARRATIVE, WE ARE GIVEN TO UNDERSTAND WE NEED TO INTERCEPT OUTSIDE OF SHRLI, BUT WITH A 'NOT TO SCALE' DRAWING, WE GET NO HDG GUIDANCE. THEORETICALLY, WE COULD GET NEEDLE MOVEMENT ABOUT WHEN WE REACH 800 FT, BUT WE DO NOT. 4) THE DEP IS NOT ALLOWED FOR RWYS 16L&R BECAUSE TOO MANY PLTS WERE VIOLATING THE RESTR AIRSPACE. THE CORRECTION IS SIMPLE: 'FLY RWY HDG UNTIL 800 FT, TURN TO A HDG OF XXX DEGS UNTIL INTERCEPTING 056 DEG RADIAL WHILE CLBING TO 2000 FT.' CHANGE THE CHART TO AGREE WITH THE NARRATIVE. TRACON ADVISED TO SET SHRLI IN GPS AND FLY DIRECT IN THE PHONE CALL. THIS IS NOT A GPS DEP. LOTS OF CONFUSION.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.