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Some terms that may be new to you
What do you mean by ...?
Have you come across unfamiliar abbreviations or terms in the EFM web pages? Here we’ve put together a list of definitions and explanations.
Glossary
| AEA | Association of European Airlines |
| Anti-icing | Measures that prevent ice or snow from again adhering to the aircraft within a certain period (hold-over time); for this purpose, chemical products are generally used. |
| Batch heating | System in de-icing vehicles that heats the de-icing fluid (Type I) in the vehicle to the required temperature within a short time; this eliminates the need to heat the de-icing fluid (Type I) in the storage tanks and then keep it warm. |
| De-icing | All measures designed to remove ice and snow from aircraft to ensure a clean surface. This can be achieved mechanically, through the use of thermal energy or by other means. |
| FMG | Flughafen München GmbH (Munich Airport Authority) |
| Hold-over time | A statistical value defining a time period during which it is unlikely that fresh precipitation will accumulate on treated aircraft surfaces, taking into account the current temperature and the type and quantity of precipitation. Under the one-step procedure, the hold-over time begins when de-icing starts; under the two-step procedure, it begins with the start of anti-icing. |
| Hot at nozzle | System in de-icing vehicles that makes hot de-icing fluid (Type I) instantly available at the nozzle; this ensures that the de-icing fluid (Type I) in the spraying arm does not cool down, which would make the spraying operation ineffective. |
| ISO | International Organization for Standardization |
| One-step procedure | In a one-step procedure, the removal of accumulations of ice and snow (de-icing) is achieved in a single step. The de-icing fluid that remains on the aircraft provides limited protection against fresh accumulations (anti-icing). |
| Recyclate | De-icing fluids obtained through the regeneration of used de-icing fluids |
| Recycling | Regeneration and reuse of used materials; in this case, previously used de-icing fluids |
| Remote areas | Special pads for de-icing aircraft at the runway heads |
| SAE | Society of Automotive Engineers |
| SMPB | Single man pushback |
| Two-step procedure | The two-step procedure consists of two steps: First, ice and snow are removed from the aircraft using Type I fluid (de-icing). Next, Type IV fluid is sprayed on the cleaned surfaces to protect the aircraft against the formation of new ice before take-off (anti-icing). |
| Type I | De-icing fluid Clariant Safewing MP I 1938 ECO |
| Type IV | De-icing fluid Clariant Safewing MP IV LAUNCH |
| Under-wing de-icing | De-icing of the lower surface of the wings |
| Walkout assistant | In a pushback operation the walkout assistant handles the communications between the tractor driver and the cockpit and is responsible for safety. |
