Seriously guys, there are no such things known as taxi speed indicators. There is also no limitations as to taxi speeds. Know why? Generally the taxi speed is not up to you, usually you are taxiing as fast as the other traffic around you. Obviously you can not pass someone or beat someone to a turn since you are just a puppet to ATC. You are taught from your first day as a student pilot to taxi at a speed of a brisk walk. This is the same day you are trying to taxi by turning the yolk too. You can use that as a basis by which most pilots will go by. Do they use this....no.....but each situation dictates how fast they will taxi.
If you are at your hub and familiar with the field, then yes, you may taxi a little faster with traffic permitting. On the other hand, after you land at Newark at night with heavy rain, you bet your butt you are going to taxi slow because the Captain is steering and outside the aircraft while the FO is writing down directions and finding the way on the airport diagram. Each situation calls for a different taxi speed.
On another note, it is not a race to the gate as it may seem with SWA. Whether taxiing in or out the flight deck is running checklists, running new numbers if the runway changes, reprogramming the FMS if a reroute occurs, etc....They are busy up there. You know the time you worry about how fast you get in the air is the time you forget to put the flaps at TO configuration. ie. NWA DC-9.
Lastly, the pitot tube will not register on the ground, why, well airspeed indicators in commercial aircraft will not begin to react until 40 knots is reached at the lowest. You dont even make a call in most till 80 or 100. A gust of wind can register in your a/s indicator but a taxi should not. Regardless, guess what happens in most airplanes when you hit 25 knots or more........the ground spoilers open!!!!!!!!!!!I think that may prevent you from going much faster.
To CX flyboy- are you really a pilot- you talk the talk but I believe that I saw you said you flew a 74 or something of that caliber? You fly a 74 and you are telling me you rely on the INS to display a ground speed and thats how you taxi. Do you know what ground speed is?
No, okay, I'll tell you......ground speed is the relative speed the aircraft is travelling in relation to the ground below you. Thus ground speed is a measurement that is taken in the air, what does this account for, well how about wind direction, speed, your course, and your true airspeed. So your telling me you account all of this into determining how fast you should taxi? Why dont you just save time and taxi as fast as the others around since your speed means nothing if the plane ahead is taxiing slower.
Not trying to be rude but the person asked for an honest answer and he has been told everything from imaginary instruments to rotations on taxiways........