A Fractional Carrier First Officer reported that his FMS's PDX RIVER 6 database was not properly coded because it did not track the PDX 082 Radial and the fix CROWN is not part of the procedure.

Narrative

Departed PDX Runway 10R; assigned the RIVER 6 departure procedure. Loaded that departure into the FMS from its database. For the departure; the PF used the FMS to fly the departure; while I (the PM) had the raw VOR data (PDX 085 radial) on my side as a cross-check. Shortly after takeoff; the Tower Controller said something to the effect of; 'Confirm you're turning left to join the 085 radial and contact departure.' We confirmed that we were starting the turn; as the FMS course was starting to come alive from the right; and contacted Departure. As we continued; I noticed that the intercept was VERY shallow. I checked the FMS; and it was flying a 082 course to intercept that 085 radial; and wouldn't actually intercept until some 6 miles from the airport. My raw VOR needle on my screen was still full-scale to the left; and I suggested to the PF that I thought something wasn't right with the FMS course. He concurred; and switched his side to the VOR; and turned the airplane about 20 degrees left to more quickly join the radial. I'd suggest a reevaluation of the coding of the RIVER 6 departure; as I believe it's erroneous. The shallow (3-degree) intercept angle clearly surprised ATC (which is why we abandoned it); and since this departure is designed for noise abatement; flying some six miles before joining the radial would completely defeat its purpose. Recoding the procedure so it aims for a closer point that creates a 20-30 degree intercept; instead of a 3 degree one; would probably fix the issue. Also; the coding for the departure has the aircraft flying that 082 course between the runway end and a lat/long fix about six miles away. After that; it says to fly a '085 Heading;' which is incorrect. Both the graphic and textual descriptions instruct us to 'proceed via the PDX 085 RADIAL;' which continues to the published fix CROWN. In the FMS coding; CROWN does not appear at all. Because the coding goes direct from the 082 intercept course to a heading; the PDX 085 radial is not actually coded anywhere on the departure. Any significant wind would set the aircraft up for a course deviation. Until the coding is revised; the only possible way to fly along the PDX 085 radial is to use the raw VHF data; or program it manually in the FMS. The RIVER 6 in the database does not actually join that radial at any point.