diff --git a/config.py b/config.py
index 460901a..3482971 100644
--- a/config.py
+++ b/config.py
@@ -7,10 +7,17 @@ import os
 import sys
 
 # Application version
-VERSION = "2.26.11"
+VERSION = "2.26.12"
 
 # Changelog - latest release notes (shown on welcome screen)
 CHANGELOG = [
+    {
+        "version": "2.26.12",
+        "date": "March 2026",
+        "highlights": [
+            "AIS and ADS-B dashboards now use configured observer position from .env",
+        ]
+    },
     {
         "version": "2.26.11",
         "date": "March 2026",
diff --git a/routes/adsb.py b/routes/adsb.py
index 3ca852c..3b7d8c9 100644
--- a/routes/adsb.py
+++ b/routes/adsb.py
@@ -40,6 +40,8 @@ from config import (
     ADSB_DB_PORT,
     ADSB_DB_USER,
     ADSB_HISTORY_ENABLED,
+    DEFAULT_LATITUDE,
+    DEFAULT_LONGITUDE,
     SHARED_OBSERVER_LOCATION_ENABLED,
 )
 from utils import aircraft_db
@@ -1197,6 +1199,8 @@ def adsb_dashboard():
         'adsb_dashboard.html',
         shared_observer_location=SHARED_OBSERVER_LOCATION_ENABLED,
         adsb_auto_start=ADSB_AUTO_START,
+        default_latitude=DEFAULT_LATITUDE,
+        default_longitude=DEFAULT_LONGITUDE,
         embedded=embedded,
     )
 
diff --git a/routes/ais.py b/routes/ais.py
index 7ff016c..847ef36 100644
--- a/routes/ais.py
+++ b/routes/ais.py
@@ -15,7 +15,7 @@ import time
 from flask import Blueprint, Response, jsonify, render_template, request
 
 import app as app_module
-from config import SHARED_OBSERVER_LOCATION_ENABLED
+from config import DEFAULT_LATITUDE, DEFAULT_LONGITUDE, SHARED_OBSERVER_LOCATION_ENABLED
 from utils.constants import (
     AIS_RECONNECT_DELAY,
     AIS_SOCKET_TIMEOUT,
@@ -542,5 +542,7 @@ def ais_dashboard():
     return render_template(
         'ais_dashboard.html',
         shared_observer_location=SHARED_OBSERVER_LOCATION_ENABLED,
+        default_latitude=DEFAULT_LATITUDE,
+        default_longitude=DEFAULT_LONGITUDE,
         embedded=embedded,
     )
diff --git a/templates/adsb_dashboard.html b/templates/adsb_dashboard.html
index 229adc8..3ef17f0 100644
--- a/templates/adsb_dashboard.html
+++ b/templates/adsb_dashboard.html
@@ -36,6 +36,8 @@
     <script>
         window.INTERCEPT_SHARED_OBSERVER_LOCATION = {{ shared_observer_location | tojson }};
         window.INTERCEPT_ADSB_AUTO_START = {{ adsb_auto_start | tojson }};
+        window.INTERCEPT_DEFAULT_LAT = {{ default_latitude | tojson }};
+        window.INTERCEPT_DEFAULT_LON = {{ default_longitude | tojson }};
     </script>
     {% if offline_settings.assets_source == 'local' %}
     <script defer src="{{ url_for('static', filename='vendor/leaflet/leaflet.js') }}"></script>
@@ -340,8 +342,8 @@
             <div class="control-group">
                 <span class="control-group-label">LOCATION</span>
                 <div class="control-group-items">
-                    <input type="text" id="obsLat" value="51.5074" onchange="updateObserverLoc()" style="width: 70px;" title="Latitude" placeholder="Lat">
-                    <input type="text" id="obsLon" value="-0.1278" onchange="updateObserverLoc()" style="width: 70px;" title="Longitude" placeholder="Lon">
+                    <input type="text" id="obsLat" value="{{ default_latitude }}" onchange="updateObserverLoc()" style="width: 70px;" title="Latitude" placeholder="Lat">
+                    <input type="text" id="obsLon" value="{{ default_longitude }}" onchange="updateObserverLoc()" style="width: 70px;" title="Longitude" placeholder="Lon">
                     <span id="gpsIndicator" class="gps-indicator" style="display: none;" title="GPS connected via gpsd"><span class="gps-dot"></span> GPS</span>
                 </div>
             </div>
@@ -643,7 +645,9 @@
                     if (parsed.lat !== undefined && parsed.lat !== null && parsed.lon !== undefined && parsed.lon !== null) return parsed;
                 } catch (e) {}
             }
-            return { lat: 51.5074, lon: -0.1278 };
+            const defaultLat = window.INTERCEPT_DEFAULT_LAT || 51.5074;
+            const defaultLon = window.INTERCEPT_DEFAULT_LON || -0.1278;
+            return { lat: defaultLat, lon: defaultLon };
         })();
         let rangeRingsLayer = null;
         let observerMarker = null;
diff --git a/templates/ais_dashboard.html b/templates/ais_dashboard.html
index b0e3bd9..56c5017 100644
--- a/templates/ais_dashboard.html
+++ b/templates/ais_dashboard.html
@@ -35,6 +35,8 @@
     <!-- Deferred scripts -->
     <script>
         window.INTERCEPT_SHARED_OBSERVER_LOCATION = {{ shared_observer_location | tojson }};
+        window.INTERCEPT_DEFAULT_LAT = {{ default_latitude | tojson }};
+        window.INTERCEPT_DEFAULT_LON = {{ default_longitude | tojson }};
     </script>
     {% if offline_settings.assets_source == 'local' %}
     <script defer src="{{ url_for('static', filename='vendor/leaflet/leaflet.js') }}"></script>
@@ -185,8 +187,8 @@
             <div class="control-group">
                 <span class="control-group-label">LOCATION</span>
                 <div class="control-group-items">
-                    <input type="text" id="obsLat" value="51.5074" onchange="updateObserverLoc()" style="width: 70px;" title="Latitude" placeholder="Lat">
-                    <input type="text" id="obsLon" value="-0.1278" onchange="updateObserverLoc()" style="width: 70px;" title="Longitude" placeholder="Lon">
+                    <input type="text" id="obsLat" value="{{ default_latitude }}" onchange="updateObserverLoc()" style="width: 70px;" title="Latitude" placeholder="Lat">
+                    <input type="text" id="obsLon" value="{{ default_longitude }}" onchange="updateObserverLoc()" style="width: 70px;" title="Longitude" placeholder="Lon">
                 </div>
             </div>
 
@@ -248,7 +250,9 @@
             if (window.ObserverLocation && ObserverLocation.getForModule) {
                 return ObserverLocation.getForModule('ais_observerLocation');
             }
-            return { lat: 51.5074, lon: -0.1278 };
+            const defaultLat = window.INTERCEPT_DEFAULT_LAT || 51.5074;
+            const defaultLon = window.INTERCEPT_DEFAULT_LON || -0.1278;
+            return { lat: defaultLat, lon: defaultLon };
         })();
         let rangeRingsLayer = null;
         let observerMarker = null;