Q for pilots: Taxiing and autostart in 777 or similiar ac.
First of all, my apologizes for my poor english.
My first question is about taxiing the 777 or similiar heavy aircraft.
How much imput from the engines do You need to keep the plane rolling on taxiway? Of course You need some extra thrust to move it, but what about just maintaining and keeping the taxi speed? Of course it depends on payload and fuel amount, but i wonder if it's possible to taxiing fully loaded aircraft when thrust levelers at idle? And how much of "idle setting" do You use in everyday taxi procedure?
And what about managing with 90 deegree turns? Manuals says, that you have to reduce GS to maximum 10 knots, but what is the most reasonable speed for those kind of turn?
Second question - When reading the manual, I do not understand starting engines procedure, with autostart. Do You swith "on" both fuel cutoff switches before moving engine controls to the "start" position? Or just after this procedure?
Best regards!