H
OT
R
OD
C
ALC
™ — 7
calculates current local water vapor pressure, saturation
water vapor pressure, and dew point temperature.
Default value is 0% RH.
Wind Speed –
Enters current local wind speed;
calculates corrected ET and speed.
Elevation / Air Density Index –
Enters current local
elevation; calculates air density index and density
altitude. Default elevation is 0 feet. Default air density
index is 100%. Default density altitude is -0.001 feet
(effectively 0 feet).
Wind Direction –
Enters the current local wind direction.
A direct headwind is entered as 0°, a direct crosswind is
entered as 90°, and a direct tailwind is entered as 180°.
You can enter a value from 0° to 360°.
Vehicle Weight –
Enters or calculates the vehicle’s
weight. Vehicle weight typically includes the driver’s
weight. Calculates vehicle weight given ET and HP or
MPH and HP.
Frontal Area –
Enters the vehicle’s frontal area when
correcting for wind conditions. This is the view of the
vehicle from “head-on”, measuring from bottom of front
bumper to the top of the roof and the widest point to
point of the race car (e.g. door handle to door handle).
Elapsed Time –
Enters or calculates the vehicle’s
quarter-mile drag strip elapsed time in seconds;
calculates the vehicles eighth-mile drag strip elapsed
time in seconds; calculates the vehicle’s horsepower
correction factor (HPc) and Motorsport Standard
Atmosphere (MSA) adjusted elapsed time and speed
when the appropriate weather conditions are entered.
Summary of Contents for Hot Rod Calc 8703
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