J
JNugent
Guest
Steve Walker wrote:
> Tom Crispin
>> My friend is sure that she maintained an indicated speed between 65
>> and 70 mph.
> At an indicated 74mph on the speedo, my GPS reads 70. In my previous car
> the speedo read a little over 75 at 70 by GPS.
I am never sure about this (mainly because my car odometers have always
read consistently with road mileage signs and I assume that the speedo and
odometer are part of the same system), but that very point has been made
many times before in this NG - often by lorry drivers who drive vehicles
with calibrated instruments.
> Tom Crispin
>> My friend is sure that she maintained an indicated speed between 65
>> and 70 mph.
> At an indicated 74mph on the speedo, my GPS reads 70. In my previous car
> the speedo read a little over 75 at 70 by GPS.
I am never sure about this (mainly because my car odometers have always
read consistently with road mileage signs and I assume that the speedo and
odometer are part of the same system), but that very point has been made
many times before in this NG - often by lorry drivers who drive vehicles
with calibrated instruments.