diff --git a/src/blackmisc/aviation/aircrafticaocodelist.cpp b/src/blackmisc/aviation/aircrafticaocodelist.cpp
index 4571262f3..2983a5548 100644
--- a/src/blackmisc/aviation/aircrafticaocodelist.cpp
+++ b/src/blackmisc/aviation/aircrafticaocodelist.cpp
@@ -114,6 +114,19 @@ namespace BlackMisc
             return c;
         }
 
+        QStringList CAircraftIcaoCodeList::allIcaoCodes(bool onlyKnownDesignators) const
+        {
+            QStringList c;
+            for (const CAircraftIcaoCode &icao : *this)
+            {
+                if (onlyKnownDesignators && !icao.hasKnownDesignator()) { continue; }
+                const QString d(icao.getDesignator());
+                if (c.contains(d)) { continue; }
+                c.append(d);
+            }
+            return c;
+        }
+
         CAircraftIcaoCodeList CAircraftIcaoCodeList::fromDatabaseJson(const QJsonArray &array, bool ignoreIncomplete)
         {
             CAircraftIcaoCodeList codes;
diff --git a/src/blackmisc/aviation/aircrafticaocodelist.h b/src/blackmisc/aviation/aircrafticaocodelist.h
index fbec727ca..90b419f2e 100644
--- a/src/blackmisc/aviation/aircrafticaocodelist.h
+++ b/src/blackmisc/aviation/aircrafticaocodelist.h
@@ -71,6 +71,9 @@ namespace BlackMisc
             //! For selection completion
             QStringList toCompleterStrings(bool withIataCodes = false, bool withFamily = false) const;
 
+            //! All ICAO codes, no duplicates
+            QStringList allIcaoCodes(bool noUnspecified = true) const;
+
             //! From our database JSON format
             static CAircraftIcaoCodeList fromDatabaseJson(const QJsonArray &array, bool ignoreIncomplete = true);
         };