Gulfstream IV / G350 / G450
Flight Crew Air Transport Pilot (ATP)
Troubleshooting; Communication Breakdown; Confusion
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Provided Assistance; Flight Crew Became Reoriented; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Returned To Clearance
Human Factors; Procedure
Upon picking up our clearance at BJC on a quick turn we were given an amended clearance that included the RIKKK 3 Departure. I heard it instead as the BRYCC 3 Departure (Sounding like BRICK) and read it back. I then went to load the FMS. On the SIDS page on the FMS the BRYCC3 Departure comes up on the first page; as well as when you look at DU2; you don't even see the RIKKK3 Departure. Instead it is buried in the list. After I loaded the flight plan I looked at the map of our altered flight plan to ensure continuity; and briefed the BRYCC3. We took off; were given a radar vector as part of our takeoff clearance and departed uneventfully. We were then given direct RIKKK. Confused; we asked 'direct BRYCC?' The controller said 'direct RIKKK; isn't that on your flight plan?' We then asked for the spelling of the fix; which they didn't have and instead they gave us a heading instead while they sorted it out. Upon looking at the FMS departure list again; we found the RIKKK departure buried deeper in the list. This did not turn into a loss of separation issue; just a lot of confusion on the part of the controllers and flight crew.
[Report narrative contained no additional information.]
Gulfstream IV flight crew reported they programmed their FMS with a different route than cleared. After departure; ATC detected the errant track and provided route clarification.