Flight Crew Flight Instructor; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 35; Flight Crew Total 4500; Flight Crew Type 600
Inflight Event / Encounter Wake Vortex Encounter
General None Reported / Taken
Procedure; Environment - Non Weather Related
Wake Turbulence suspected: We were aware of the other aircraft by ATC & TCAS. Other aircraft was level at FL400 same direction approximately 12-17 miles ahead. Turbulence was bordering on moderate. No vertical acceleration was noticed.Aircraft change in attitude: Pitch: 3deg down Roll: 15-20deg Yaw: No significant changes. There was buffeting. No stick shaker. Autopilot was engaged but self-disconnected. No auto throttles were engaged
HS125-800XP FO reported encountering wake turbulence at FL400 from same direction/same altitude aircraft 12-17 miles ahead.