IAA Safety Leaflets
| No. | Title | Date of issue | Type | Size | |
|---|---|---|---|---|---|
| AED 1 | Risk from Obstacles at Aerodromes | 29/08/2011 |
pdf
|
195 KB | Download |
| EASA DG | GA Dangerous Goods Safety | 18/08/2020 |
pdf
|
1355 KB | Download |
| GA 1 | Collision Avoidance | 20/09/2011 |
pdf
|
3463 KB | Download |
| GA 3 | Weather Anticipation | 14/02/2012 |
pdf
|
3991 KB | Download |
| HE 1 | Methods to Improve Helicopter Pilot Capabilities | 20/09/2011 |
pdf
|
1194 KB | Download |
| HE 2 | Helicopter Airmanship - Methods to Improve Helicopter Pilots Safety | 12/01/2012 |
pdf
|
1463 KB | Download |
| IGA 10 | Propeller Safety | 22/09/2025 |
pdf
|
614 KB | Download |
| IGA 3 R1 | Aircraft and Components with Low Utilisation | 14/02/2025 |
pdf
|
186 KB | Download |
| IGA 4 | Use of GNSS/GPS in General Aviation | 16/12/2011 |
pdf
|
121 KB | Download |
| IGA 6 | Wire Strikes - The Hazard to Aviation | 26/04/2013 |
pdf
|
135 KB | Download |
SKYbrary Articles
Arcus
02 Feb 2022
A dense, horizontal roll with more or less tattered edges, situated on the lower front part of certain primary clouds and having, when extensive, the appearance of a dark, menacing arch. Technicall an "accessory cloud" which is in association with other cloud types, it occurs with Cumulonimbus (Cb) and, less often, with Cumulus.
Roll clouds and shelf clouds are the two main types of arcus clouds. They most frequently form along the leading edge or gust fronts of thunderstorms. Roll clouds may also arise in the absence of thunderstorms, forming along the shallow cold air currents of some sea breeze boundaries and cold fronts.
Roll clouds and shelf clouds are the two main types of arcus clouds. They most frequently form along the leading edge or gust fronts of thunderstorms. Roll clouds may also arise in the absence of thunderstorms, forming along the shallow cold air currents of some sea breeze boundaries and cold fronts.
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Source Skybrary