Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Wake Vortex Encounter; Inflight Event / Encounter Weather / Turbulence
Flight Crew Returned To Clearance
Environment - Non Weather Related; Human Factors; Procedure
I was the PNF and; at the gate; briefed the departure off of runway 25L in LEBL. The departure requires an 80 degree turn after takeoff for noise abatement. Company [procedure] mandates that the first turn airborne be hand-flown before engaging the autopilot. We departed behind a Heavy A340. At 500 feet; the first officer requested the heading change. I delayed responding to his request because of two factors: I felt we were too slow to initiate that turn as we were very heavy; and; as we initially climbed; we had encountered turbulence; thus at our heavy weight and slow speed wanted to make sure that we would have adequate speed and altitude before continuing the turn.[Suggest] choosing a different runway. Take the full 2 minutes behind a departing heavy.
B767-300ER Captain reported deviating from cleared departure track at LEBL because of lingering wake turbulence.