B777-200
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 250; Flight Crew Total 15000; Flight Crew Type 220
Other / Unknown
Deviation - Track / Heading All Types; Inflight Event / Encounter Wake Vortex Encounter; Inflight Event / Encounter Weather / Turbulence
General None Reported / Taken
Weather; Environment - Non Weather Related
I hand flew the HOLTZ 9 Departure (RNAV) as I am new to this aircraft. After entering the clouds we experienced a rough ride from what I think was the wake of a B777 aircraft that departed before us. I believe that we were within the 0.5 mile tolerance of the RNAV departure. We hit another jolt close to PEVEE Intersection either from wake or weather. This is one time I would have been better off engaging the autopilot and observing the navigation limits instead of hand flying.
A B777 Captain reported difficulty tracking the hand-flown HOLTZ 9 Departure off LAX because of a wake or weather encounter.