Gulfstream G200 (IAI 1126 Galaxy)
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 75; Flight Crew Total 19500; Flight Crew Type 450
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Loss Of Aircraft Control; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Regained Aircraft Control; Flight Crew Returned To Clearance
Environment - Non Weather Related
We were given the BEKOl3A departure from Hong Kong airport and departed on Runway 7R. Shortly after takeoff we encountered what I thought was severe wind shear which I now believe was wake turbulence. The aircraft rolled sharply to the left into a 60 degree bank. I [tried] to the best of my ability to get the aircraft back to a straight and level flight but by that time we were off course well to the left of the departure. We had the terrain in sight at all times. I'm sorry for the deviation from the SID; but I did [try] to the best of my ability to correct an unfortunate situation and fly a safe aircraft.
G200 Captain reported a wake vortex encounter shortly after takeoff from VHHH that resulted in a roll and a track deviation from the assigned SID.