Sentence examples for density of ash from inspiring English sources
Once the Met Office assigns a particular density of ash to a section of airspace, airlines must prove they have the safety case to fly through it.
The authorities ban travel through airspace when the density of ash in the atmosphere is enough to damage jet engines.
The speed, density of ash cloud, size of ash particles, temperature and wind all have an impact – in short there are just too many variables and it's extremely difficult!" Does ash affect the fuel efficiency of an engine?
Comparisons with the maximum density test results revealed that relative compaction is a more appropriate quantity to control the density of ash mixtures than relative density.
The bulk density of Ash-RH was determined using Archimedes's principle.
Now, airlines can fly through ash plumes if they can demonstrate that their fleets can handle medium or high-level densities of ash.
All these studies emphasise the need to focus on static load rather than ash thickness as wet and dry densities of ash can vary widely from about 500 to 2000 kg/m3 (Shipley, S.and Sarna-Wojcicki, A 1982; Blong 1984; Spence et al. 2005; Macedonio & Costa 2012; Jenkins et al. 2014).
This value was based on our measured densities of ash-fall deposit 2 km ENE from the source (1540 and 1420 kg/m3).
The high bulk density of some ash deposits can cause line breakage and damage to steel towers and wooden poles due to ash loading.
Criticism following the strictly enforced shutdown resulted in the CAA relaxing its rules to allow planes to fly in areas with a low density of volcanic ash.
