Contrail
Contrails (/ˈkɒntreɪlz/; short for "condensation trails") or vapor trails are lang, thin airtifeecial cloods that sometimes form behind aircraft. Thair formation is maist eften triggered bi the watter vapor in the exhaust o aircraft ingines, but can an aa be triggered bi chynges in air pressure in weengtip vortices or in the air ower the entire weeng surface.[1] Contrails are made o watter in the form o a suspension o billions o liquid droplets or ice crystals.
| Aviaticus clood | |
|---|---|
 Ingine exhaust contrails | |
| Genus | Cirrus (curl of hair), cirrocumulus, or cirrostratus |
| Altitude | 7,620 tae 12,192 m (25,000 tae 40,000 ft) |
| Clessification | Family A (Heich-level) |
| Appearance | lang baunds |
| Precipitation clood? | No |
References
eedit- ↑ "vapour trail". Encyclopædia Britannica. Encyclopædia Britannica Inc. 2012. Retrieved 17 Apryle 2012.