Small Aircraft
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Commercial
Flight Crew Last 90 Days 20; Flight Crew Total 5000; Flight Crew Type 700
Confusion; Situational Awareness; Communication Breakdown
ATC Issue All Types; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued New Clearance
Procedure; Airspace Structure
On the VMC day; there was confusion over the SID; the verbal clearance received was the NOTWN4. The clearance showing in the ATC computer was RTTRN2 per Flightaware.com (discovered later). I noted that the RTTRN2 SID was not approved for the assigned runway. There was some confusion between LAS TRACON and VGT Tower as the release was delayed to the point that I told the Tower I was considering cancelling the IFR clearance and departing VFR west under the Bravo. They then said that the release was about ready; I waited. As soon as I departed 30L and contacted departure I received an urgent (ATC voice tension) turn 090 and expedited climb to 7;000 which was my initial altitude assigned. I was just beginning my turn to a track of 313 to RUZCO and continued the climb to 7;000 as vectored. One misjudgment on my part was that I was depending on the GPS route to RUZCO and had not set the 313 radial off LAS and the moving map display was set to a larger than optimal range so the track was not very visible. My suggestion would be to change the NOTWN4 for a straight out departure to intercept the 313 off LAS. RTTRN2 should remain unchanged unless the airspace NE of VGT could be utilized for the SID from R7; 12R and 12L.
The initial problem was a departure clearance issued not appropriate for the runway. Once that was worked out; and the departure initiated; the departure (TRACON) Controller modified the turn off the expected radial; possibly to avoid airspace or traffic for LAS.
A general aviation pilot reported ATC issues prior to release; and then after takeoff from North Las Vegas airport.