|
-
Enter your lung capacity in liters. Calculate by blowing up a balloon
or displacing water in a container. (Or estimate, huge lungs are~7, small
people~4)
-
Calculate your VO2 maximum (if you don't know it) by filling out a page
for your best aerobic ride, preferably a hill climb over 1/2 hour, as these
are likely to be more accurate. Use the resulting figure , this will be a
benchmark for you.
-
Enter the distance of the ride.
-
Weight of your machine, water etc.
-
Weight of you, clothes, Camelback, etc.
-
Elevation gained. Total of all up-hills during the ride.
-
Elevation lost. Total of all declines.
-
Enter your chain condition. New, well oiled chain and gears give
an efficiency of ~95%. Dry, dirty chain and cogs can drop below 90%.
-
Tire type. A fat knobby 2.25 is about .015, the best road tubulars
about .002! My 1.9 touring tire = ~.006. I am doing some more experiments
with large factor tires, and will include them in future updates.
-
Enter your rear tire pressure, as 70% of your weight is there.
-
Enter your normal position, frontal area depends mainly on this, .33 for
track racers, .5 for upright, .55 when honking.
-
Enter the total time you ride, include brief stops.
-
Enter the surface condition. This is the road surface factor. I.e., the
number of times more resistive a surface is than smooth concrete
Smooth pavement= 1.0
|
Rough pavement= 1.1 - 1.3
|
Dry, hard dirt or cinder= 1.3 - 1.6
|
Deep, dry sand= 6+
|
Wet, firm cinder/sand= 2.0 - 3.0
|
Deep mud= 5+
|
-
Enter your Cd, loose shirts/jackets add at least 10% over tight
jerseys!
-
Hit the CALCULATE button for the results. Use <alt>+< or the
back button to return.
Note: I would greatly appreciate feedback on people's results!
E-mail me at: rays aaat blue-cove.com (<- anti-spam version)
Thanks!
|
|