Tow segment data · Day 21
FlatIron Crossing RAN (Broomfield) LaVern M. Johnson Park (Lyons)
This 27.5-mile tow leg from FlatIron Crossing RAN (Broomfield) to LaVern M. Johnson Park (Lyons) on Day 21 averaged 0.96 mi/kWh, -22% the 1.23 mi/kWh ledger average, over mostly level ground, into 8 mph of light headwind penalty, around 75°F. That works out to a full-pack tow pace of about 135 miles on the 141 kWh pack, ranking #41 of 47 logged legs by efficiency.
The road shape behind the number.
The data points
- Distance
- 27.5 mi
- Energy used
- 29 kWh from the pack
- Efficiency
- 0.96 mi/kWh
- Consumption
- 1,042 Wh/mi
- Expected range
- 135 mi on a 141 kWh pack
- Net elevation
- +21 ft climb
- Total climbed
- 810 ft up
- Total descended
- 790 ft down
- Peak elevation
- 5,703 ft
- Average grade
- +1 ft/mi
- Wind
- 8 mph NNE Wind direction worked against the trailer and likely pulled efficiency down. ↓ light headwind penalty
- Temperature
- 75 °F avg 66-83°F mild temperature
Dashboard at arrival
The Rivian center-display readout when we rolled into LaVern M. Johnson Park (Lyons) , 7:30 PM. Point-in-time instrument values, the kind of telemetry that goes continuous once we start logging OBD-II.
- Motor temps
- 104 °F
Why it ran this way
The short last hop up into the Front Range canyons, Broomfield through Boulder to the Lyons river camp. Just 0.96 mi/kWh towing, the lowest leg of the trip so far, the foothills climb and stop-and-go through Boulder eating the efficiency.