The RHS in any Airbus/Boeing/twin crew aircraft has a set of brake pedals, a set of flight controls and the F/O can reach the thrust levers, so of course an F/O can perform an RTO. I mean, trained or not, you're not going to just sit there and watch the aircraft pile towards the perimeter fence or over a cliff without doing anything are you?!
If the take-off has to be continued and controls are being gripped, the Airbus F/O can simply press and hold his/her red disconnect button to disable the Captain's side-stick. (Does the Boeing have a physical yoke disconnect?)
All FBW Airbus have RHS tillers, but not all company's allow RHS to taxi.
Our company regularly trains for Captain incap on take-off followed by RTO performed by F/O. Our RHS seat also taxis, so F/O could RTO and taxi to a gate.
Heathrow, for one, is a very big place and it would probably be quicker for the aircraft to 'follow the greens' to a gate than for ATC to 'taxi' paramedics possibly a mile or so across the airfield out to the aircraft.
All commercial flights have two pilots for exactly this sort of scenario, and in my opinion, this sort of thing illustrates why it is daft not to allow F/Os to taxi (if a RHS tiller is fitted).
Last edited by Uplinker; 10th Dec 2016 at 09:22.