Taxi speed

Hi,

What is the normal and maximum taxi speed (in knots) for an RJ, 737, and 747
in normal operations? I'm just using those as examples, feel free to
mention any others. Also, I'm not looking for maximums or AFM limiations,
just the day-in day-out taxi speeds and the maximum that a crew would use to
get to the runway for an expedited takeoff.

Thanks,

Hilton

On Mar 5, 12:55 pm, "Hilton" wrote:
Hi,

What is the normal and maximum taxi speed (in knots) for an RJ, 737, and 747
in normal operations? I'm just using those as examples, feel free to
mention any others. Also, I'm not looking for maximums or AFM limiations,
just the day-in day-out taxi speeds and the maximum that a crew would use to
get to the runway for an expedited takeoff.

My guess here is that if you're taxiing fast enough to get an
indication on the airspeed indicator (tape display?) you're going too
fast... (unless you're heading upwind maybe) I don't know if there is
a max taxi speed, usually it's at the pilot's discretion - interesting
question though.

Hilton wrote:
Hi,

What is the normal and maximum taxi speed (in knots) for an RJ, 737, and 747
in normal operations?

As an airline passenger, I typically see ~ 15 MPH (~ 12.5 knots) on my
handheld GPS, with the occasional 20 MPH leg on a long, straight
taxiway. In my Spam can, the GPS groundspeed typically shows ~ 10-12
knots on the high end.

When the 747 entered service, the pilots used the inertial
nav to control speed, because it was said, that it was too
hard to judge the speed visually because of the high cabin.
I a straight line, you can taxi fast, but no airplane
corners like a F1 race car.

Slower is better.



"B A R R Y" wrote in message
...
| Hilton wrote:
| Hi,
|
| What is the normal and maximum taxi speed (in knots) for
an RJ, 737, and 747
| in normal operations?
|
| As an airline passenger, I typically see ~ 15 MPH (~ 12.5
knots) on my
| handheld GPS, with the occasional 20 MPH leg on a long,
straight
| taxiway. In my Spam can, the GPS groundspeed typically
shows ~ 10-12
| knots on the high end.

Hilton wrote:
Hi,

What is the normal and maximum taxi speed (in knots) for an RJ, 737, and 747
in normal operations? I'm just using those as examples, feel free to
mention any others. Also, I'm not looking for maximums or AFM limiations,
just the day-in day-out taxi speeds and the maximum that a crew would use to
get to the runway for an expedited takeoff.

Thanks,

Hilton


We used to taxi our CRJ 200's around 20kts. Usually on one engine. Two
at idle, no passengers the thing will taxi at 40kts.
Michelle (former instructor mechanic)

Michelle P wrote:

We used to taxi our CRJ 200's around 20kts. Usually on one engine. Two
at idle, no passengers the thing will taxi at 40kts.
Michelle (former instructor mechanic)

How not to taxi:

http://www.cargolaw.com/2003nightmare_NW165%20arrive.html

http://www.amfanatl.org/Pages/11_Safety&Standards/NWAAirbusLGARpt11903.htm

747 and 777, 15 knots. At least that's what we, as mechanics were taught.
Slowing to 8ish in turns.


"Hilton" wrote in message
news
Hi,

What is the normal and maximum taxi speed (in knots) for an RJ, 737, and
747 in normal operations? I'm just using those as examples, feel free to
mention any others. Also, I'm not looking for maximums or AFM limiations,
just the day-in day-out taxi speeds and the maximum that a crew would use
to get to the runway for an expedited takeoff.

Thanks,

Hilton

Hi,

In article ,
wrote:
747 and 777, 15 knots. At least that's what we, as mechanics were taught.
Slowing to 8ish in turns.

Just out of interest, how do you measure speed on the ground? Obviously the
airspeed indicator isn't much use in these situations...

(This is from a sim 'pilot', so might seem like a daft question!)

Andy

Andy Hawkins wrote:

Just out of interest, how do you measure speed on the ground? Obviously the
airspeed indicator isn't much use in these situations...

GPS and inertial nav units can provide ground speeds.

Andy Hawkins writes:

Just out of interest, how do you measure speed on the ground? Obviously the
airspeed indicator isn't much use in these situations...

If you have fancy avionics, they'll tell you your actual ground speed, as read
from an IRU or GPS.

--
Transpose mxsmanic and gmail to reach me by e-mail.