Minima Flashcards
What is indicated by this symbol on the navaid box?
A flag displayed at the lower left corner of a NAVAID Box indicates an approach that differs from standard.
What are indicated by the highlighted markings in the minima box?
Approach Type
The type of approach for the relevant minimum is provided.
In case of precision approach only the category is shown.
The standard designator ”LOC” used in Lido charts may be varied by ATC units in different countries with identical meaning ,e.g. GP out, GP INOP, ILS without GP.
At present, ILS and MLS are shown using only the category e.g Cat1, Cat2, Cat3a, Cat3b. Once GLS approaches are approved for lower than Cat1, also GLS approaches will be shown only with the respective category.
What is meant by the ‘+ /’ symbols in the NAVAID box?
For Non-precision Approach Types a “+” between two facilities means that the facility shown after the “+” has to be used in addition. A ”/” between two facilities means that either one or the other of the two facilities/approach types can be used
What is indicated by these annotations in the minima box?
- LPV (Localizer Performance with Vertical guidance) or LP (Localizer Performance) will be shown when an approach has SBAS capabilities.
- Either LPV or LP minima will be shown along side the VNAV and/or LNAV minima for the procedure. These minima types can also be shown alone for procedures without VNAV or LNAV minima.
- The use of LPV or LP minima requires operator approval
What is the meaning of the indicated charachters in the minima box?
RequiredCeiling
If a particular ceiling is required by the state authority for a specific approach this is indicated by the prefix ”C” to the numeric value.
In this case the given value must not be considered as MDH/DH but as required ceiling and has to be accounted for in the flight planning.
Whenever a ceiling has to be observed, the MDH/DH is omitted by intention.
The difference between the state given ceiling value and the MDA/DA does not necessarily correspond to the airport or THR elevation.
What is indicated by the highlighted characters in the minima box?
Special Authorization is required to use minima containing SA in the system line.
What is the meaning of the highlighted characters?
Minimum Descent Height (MDH)/Decision Height (DH)
Where no specific ceiling is required, the mathematical difference between the higher of threshold or touchdown zone elevation and DA/MDA is published. This value has an informative character only. Decision to continue the approach or level off before descending to the runway has to be made by the DA or the MDA depending on the type of approach.
What is the meaning of the highlighted characters in the minima box?
The marked value (line of sight) can be either one of three kinds:
- an R stands for Runway Visual Range (RVR); or
- a V stands for prevailing meteorological Visibility (VIS); or
- a blank (neither a V nor an R is shown) as in this case, stands for Converted Meteorological Visibility (CMV). The term CMV denotes the result after the conversion of a visibility into an RVR. Thus, a CMV is always equally high as an RVR.
See OMA 8.22.8.iv for conversion formula.
What is the meaning of the letters highlighted in the minima box?
R and V are called “limiting letters”.
When shown, the value must be reported by and received from ATC in the respective format (as an RVR where R is shown next to the minimum, or as VIS where a V is shown next to the minimum. The value may not be converted!). Values shown without a “limiting letter” may be converted. A conversion is only possible from an ATC reported VIS into a CMV (RVR) but never from an RVR into a VIS.
What is the meaning of the highlighted charachters in the minima box?
Wherever RVR and VIS are stipulated at the same time by the state source, both values will be charted in the minima section. The value reported by and received from ATC must be equal or higher than the corresponding charted minimum. No conversion is allowed.
What is indicated by the text in the minima box?
The term ”Company” indicates that company and/or ACFT specific regulations/limitations have to be observed as published in the OM-B/AOM for Cat3 minima.
What does the highlighted wording in the minima box indicate?
An additional decision height required by state authorities is indicated by the term “DH”.
What is indicated by the minima boxes shown?
Cat3a minima are shown only:
- if Cat3a is the lowest permissible landing minimum for that ILS approach (Cat3b officially not published)
- or if different to the values 0-200R or DH-200R whenever Cat3b minima are shown.
What is indicated by the text in the minima box?
Whenever an ILS is officially authorized down to Cat3b as lowest permissible landing minimum (including Cat3a standard landing minima values) Cat3b values only are shown on Lido charts. Text and numbers in red will not be published (see examples).
What is the highlighted figure in the minima box?
Decision Altitude (DA) for Precision Approaches (PA) for example:
–ILSCat1
–MLSCat1
–GLSCat1
–PAR
What is indicated by the marking on the minima box?
An overflow arrow that there is more information for the approach on the last IAC page.
