Examples of Reference speed in a sentence
Reference speed 10m/s at 10m above sea, corresponds to 12 m/s at the mid-span of the rotor.
The uncertainties come from three main sources: Reference speed uncertainty √ Calibration uncertainty √ Range uncertainty The last term expresses the uncertainty associated with calibrating at one lidar range and measuring at a (presumably) very different range.
The Reference speed is given through a potential divider since it is straightly identified with the speed of the DC engine.
Ideally we would set this to 1.0 but since radial wind speed distributions are time consuming to achieve, a value of availability > 0.95 is also acceptable. Reference speed quality – requiring valid reference wind speed data.
Average speed is a time of day and day of week average that is updated, while Reference speed is the 85th percentile measured speed capped at 65 mph.
For data prior to February 1, 2017, the average is calculated using the 12-month period preceding November 2014. Reference speed — an approximation of free-flow speed for the segment.
Reference speed points range from 20km/h with 10 km/h intervals up to the maximum of 130 km/h, with a 14 km/h margin between vehicle top speed and the highest reference speed point.
The uncertainties come from three main sources: Reference speed uncertainty √ Calibration uncertainty √ Height uncertainty The last term represents the uncertainty in comparing the reference wind speed to a lidar wind speed at a slightly different height.
Reference speed is never less than V2 for the current flap setting.
Reference speed is compared with the measured rotor speed (ωr) and it provided speed error ωe.