diff --git a/src/blackmisc/simulation/remoteaircraftproviderdummy.cpp b/src/blackmisc/simulation/remoteaircraftproviderdummy.cpp
index 1d100667b..9f5036eb7 100644
--- a/src/blackmisc/simulation/remoteaircraftproviderdummy.cpp
+++ b/src/blackmisc/simulation/remoteaircraftproviderdummy.cpp
@@ -188,14 +188,12 @@ namespace BlackMisc
         void CRemoteAircraftProviderDummy::insertNewSituation(const CAircraftSituation &situation)
         {
             this->m_situations.push_front(situation);
-            this->m_situations.sortLatestFirst(); // like in real world, latest should be first
             emit addedRemoteAircraftSituation(situation);
         }
 
         void CRemoteAircraftProviderDummy::insertNewAircraftParts(const CCallsign &callsign, const CAircraftParts &parts)
         {
             this->m_parts[callsign].push_front(parts);
-            this->m_parts[callsign].sortLatestFirst(); // like in real world, latest should be first
             emit addedRemoteAircraftParts(callsign, parts);
         }
 
diff --git a/tests/blackmisc/testinterpolator.cpp b/tests/blackmisc/testinterpolator.cpp
index d4a8ace28..ba7525ef6 100644
--- a/tests/blackmisc/testinterpolator.cpp
+++ b/tests/blackmisc/testinterpolator.cpp
@@ -63,7 +63,7 @@ namespace BlackMiscTest
         const qint64 ts =  1425000000000; // QDateTime::currentMSecsSinceEpoch();
         const qint64 deltaT = 5000; // ms
         const qint64 offset = 5000;
-        for (int i = 0; i < IRemoteAircraftProvider::MaxSituationsPerCallsign; i++)
+        for (int i = IRemoteAircraftProvider::MaxSituationsPerCallsign - 1; i >= 0; i--)
         {
             CAircraftSituation s(getTestSituation(cs, i, ts, deltaT, offset));
 
@@ -74,7 +74,7 @@ namespace BlackMiscTest
         }
 
         constexpr int partsCount = 10;
-        for (int i = 0; i < partsCount; i++)
+        for (int i = partsCount - 1; i >= 0; i--)
         {
             CAircraftParts p(getTestParts(i, ts, deltaT));
             interpolator.addAircraftParts(p);