How long does it take to reach
terminal velocity? Up hill, down hill, at start of time trial, in
a break?
Down Hill, Up Hill
On a long downhill, a rider typically accelerates for a
long time due to the force of gravity. How fast will a rider be going
when at terminal velocity? How long will it take to reach terminal
velocity?
Terminal velocity downhill in the sample case takes about
60 seconds.
Under the same conditions, but going up hill:
Acceleration at Start of Time Trial
Assume that a rider is starting a time trial at maximum,
steadystate power. How long will it take at maximum, steadystate
power to reach maximum speed? The plot bellow shows that for the example
rider, it can take about 70 seconds. (Power= 350 W, Slope= 0)
Acceleration at start of a Break
Now assume that the same rider is starting a break, how
long will it take to reach steadystate from some relatively fast start?
Again, about 70 seconds. Be patient, let your speed increase in a
natural way. (Power=350 W, Speed at Start=12.5)
