Citation V/Ultra/Encore (C560)
Flight Crew Air Transport Pilot (ATP)
Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Regained Aircraft Control
Environment - Non Weather Related; Procedure
Wake turbulence encounter close to ground. We were following an Airbus A340 to [Runway] 10C at O'Hare. I told the Captain that I was going to hand fly the aircraft and stay a dot to two dots high due to the aircraft in front of us. We were at 300 FT AGL and about two dots high on VGLI when the airplane started to pitch down and rapidly roll to the left. I was holding the yoke in my right hand and immediately grabbed it with my left hand to apply right aileron to counter the roll. It took me three tries to disconnect the yaw damper. I had to ask the Captain to 'help' push the throttles forward as my hands were full. We executed a successful go-around. We were high intentionally to avoid the wake but we hit it anyway. Possibly the [A340] was above the glide path as well. We maintained our assigned speed to keep our distance; and did not slow further as there was traffic behind us. Little jets don't fit in at major airports; plain and simple.
A CE560 First Officer encountered wake vortices from an A340 while landing at ORD.