diff --git a/specs/lts26.04.spec b/specs/lts26.04.spec
new file mode 100644
index 00000000..1da22b0c
--- /dev/null
+++ b/specs/lts26.04.spec
@@ -0,0 +1,105 @@
+# $Id$
+# $HeadURL$
+#
+# Ubuntu 26.04 LTS spec file for Qt6 migration
+#
+Name: @PROJECT@_@OS_SYSTEM@
+Version: @VERSION@
+Release: @RELEASE@
+Packager: @PACKAGER@
+Summary: Live Simulation Training System Software
+License: proprietary
+Group: Applications/Communications
+Source:  @SOURCES@
+Vendor: Rheinmetall Electronics GmbH
+URL: http://www.rheinmetall-electronics.de
+Prefix: /shd/CTC
+%description
+Live Simulation Training System Software
+Build information: @JENKINS_BUILD_TAG@
+
+%define _unpackaged_files_terminate_build 0
+%debug_package
+
+%prep
+%setup -q -n @SOURCE_DIR_REL@
+export source_dir=`pwd`
+
+%build
+my_builddir=%{_builddir}/%{buildsubdir}-build
+rm -fr ${my_builddir}
+mkdir -p ${my_builddir}
+cd ${my_builddir}
+cmake -DBUILD_RPM=ON -DBUILD_ALL=ON -DBUILD_TESTING=OFF @CMAKE_FLAGS@ -DCMAKE_COLOR_MAKEFILE=OFF -DCMAKE_INSTALL_PREFIX=%{prefix} %{_builddir}/%{buildsubdir}
+make %{?_smp_mflags}
+
+%install
+my_builddir=%{_builddir}/%{buildsubdir}-build
+cd ${my_builddir}
+DESTDIR=%{buildroot} cmake -DCOMPONENT=Unspecified -P cmake_install.cmake
+
+%clean
+%{__rm} -rf '%{buildroot}'
+%{__rm} -rf '%{_builddir}'
+
+%changelog
+#* date +"%a %b %d %Y" text
+* Tue Sep 19 2017 CE
+- initial
+
+##############################################################################
+#
+# LTS Server
+#
+
+%package -n @PROJECT@_sv_@OS_SYSTEM@
+Summary: LTS Software Server
+Group: Applications/Communications
+Prefix: /shd/CTC/SV
+Requires:      libecpg6
+Requires:      libgdal30
+Requires:      libpoppler-qt6-3
+Requires:      libQt6Concurrent6
+Requires:      libQt6Core6
+Requires:      libQt6Gui6
+Requires:      libQt6Network6
+Requires:      libQt6Sql6
+Requires:      libQt6WebSockets6
+Requires:      libQt6Xml6
+Requires:      libQt6Test6
+Requires:      libQt6SerialPort6
+Requires:      libQt6Multimedia6
+Requires:      ctc_GeographicLib
+Requires:      ctc_Log4Qt
+Requires:      ctc_rti
+Requires:      ctc_tmsif
+Requires:      ctc_schusstafel
+# for elevation and new building files
+Requires:      @PROJECT@_situation_map
+Requires:      @PROJECT@_dependencies
+#Requires: ctc_ngs_tes_uae_apache
+BuildRequires: python3-xml
+BuildRequires: pkgconfig(gdal)
+BuildRequires: pkgconfig(poppler-qt6)
+BuildRequires: pkgconfig(Qt6Concurrent)
+BuildRequires: pkgconfig(Qt6Core)
+BuildRequires: pkgconfig(Qt6Gui)
+BuildRequires: pkgconfig(Qt6Network)
+BuildRequires: pkgconfig(Qt6Sql)
+BuildRequires: pkgconfig(Qt6Test)
+BuildRequires: pkgconfig(Qt6WebSockets)
+BuildRequires: pkgconfig(Qt6Xml)
+BuildRequires: pkgconfig(Qt6SerialPort)
+BuildRequires: pkgconfig(Qt6Multimedia)
+BuildRequires: libpq-dev
+BuildRequires: ctc_GeographicLib-devel
+BuildRequires: ctc_Log4Qt-devel
+BuildRequires: ctc_tmsif-devel
+BuildRequires: ctc_rti-devel
+# no devel version...
+BuildRequires: ctc_schusstafel
+AutoReqProv: no
+
+%description -n @PROJECT@_sv_@OS_SYSTEM@
+Live Simulation Training System Server Software
+