diff --git a/ogn_lib/parser.py b/ogn_lib/parser.py
index 4df961f..e50eb80 100644
--- a/ogn_lib/parser.py
+++ b/ogn_lib/parser.py
@@ -714,3 +714,32 @@ class Skylines(Parser):
             'id': fields[0],
             'vertical_speed': int(fields[1][:3]) * FEET_TO_METERS
         }
+
+
+class LiveTrack24(Parser):
+    """
+    Parser for LiveTrack24-formatted APRS messages.
+    """
+
+    __destto__ = ['OGLT24', 'OGLT24-1']
+
+    @staticmethod
+    def _parse_protocol_specific(comment):
+        """
+        Parses the comment string from LiveTrack24's APRS messages.
+        :param str comment: comment string
+        :return: parsed comment
+        :rtype: dict
+        """
+
+        fields = comment.split(' ', maxsplit=2)
+
+        if len(fields) < 3:
+            raise exceptions.ParseError('LT24 comment incorrectly formatted:'
+                                        ' received {}'.format(comment))
+
+        return {
+            'id': fields[0],
+            'vertical_speed': int(fields[1][:3]) * FEET_TO_METERS,
+            'source': fields[2]
+        }

Implement parser for LiveTrack24 messages (OGLT24)
diff --git a/tests/test_parser.py b/tests/test_parser.py
index fa7c7cd..fb5ec8d 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -481,6 +481,23 @@ class TestSkylines:
             parser.Skylines._parse_protocol_specific('id1111')
 
 
+class TestLT24:
+    def test_parse_protocol_specific(self):
+        data = parser.LiveTrack24._parse_protocol_specific('id25387 +000fpm GPS')
+        assert data['id'] == 'id25387'
+        assert data['vertical_speed'] == 0
+        assert data['source'] == 'GPS'
+
+        data = parser.LiveTrack24._parse_protocol_specific('id25387 +159fpm GPS')
+        assert data['id'] == 'id25387'
+        assert abs(data['vertical_speed'] - 4.57) < 0.1
+        assert data['source'] == 'GPS'
+
+    def test_parse_protocol_specific_fail(self):
+        with pytest.raises(exceptions.ParseError):
+            parser.LiveTrack24._parse_protocol_specific('id11111 GPS')
+
+
 class TestServerParser:
 
     def test_parse_message_beacon(self, mocker):

pip install -e .
parse_log_pytest
pytest
pytest pytest-mock
3.6
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
attrs @ file:///opt/conda/conda-bld/attrs_1642510447205/work
certifi==2021.5.30
importlib-metadata @ file:///tmp/build/80754af9/importlib-metadata_1631916693255/work
iniconfig @ file:///home/linux1/recipes/ci/iniconfig_1610983019677/work
more-itertools @ file:///tmp/build/80754af9/more-itertools_1637733554872/work
-e git+https://github.com/akolar/ogn-lib.git@dd7b9bf33caee17a839240a134246881e9c7c32f#egg=ogn_lib
packaging @ file:///tmp/build/80754af9/packaging_1637314298585/work
pluggy @ file:///tmp/build/80754af9/pluggy_1615976315926/work
py @ file:///opt/conda/conda-bld/py_1644396412707/work
pyparsing @ file:///tmp/build/80754af9/pyparsing_1635766073266/work
pytest==6.2.4
pytest-mock==3.6.1
toml @ file:///tmp/build/80754af9/toml_1616166611790/work
typing_extensions @ file:///opt/conda/conda-bld/typing_extensions_1647553014482/work
zipp @ file:///tmp/build/80754af9/zipp_1633618647012/work

name: ogn-lib
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - attrs=21.4.0=pyhd3eb1b0_0
  - ca-certificates=2025.2.25=h06a4308_0
  - certifi=2021.5.30=py36h06a4308_0
  - importlib-metadata=4.8.1=py36h06a4308_0
  - importlib_metadata=4.8.1=hd3eb1b0_0
  - iniconfig=1.1.1=pyhd3eb1b0_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.3=he6710b0_2
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - more-itertools=8.12.0=pyhd3eb1b0_0
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - packaging=21.3=pyhd3eb1b0_0
  - pip=21.2.2=py36h06a4308_0
  - pluggy=0.13.1=py36h06a4308_0
  - py=1.11.0=pyhd3eb1b0_0
  - pyparsing=3.0.4=pyhd3eb1b0_0
  - pytest=6.2.4=py36h06a4308_2
  - python=3.6.13=h12debd9_1
  - readline=8.2=h5eee18b_0
  - setuptools=58.0.4=py36h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - toml=0.10.2=pyhd3eb1b0_0
  - typing_extensions=4.1.1=pyh06a4308_0
  - wheel=0.37.1=pyhd3eb1b0_0
  - xz=5.6.4=h5eee18b_1
  - zipp=3.6.0=pyhd3eb1b0_0
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - pytest-mock==3.6.1
prefix: /opt/conda/envs/ogn-lib

tests/test_parser.py::TestLT24::test_parse_protocol_specific tests/test_parser.py::TestLT24::test_parse_protocol_specific_fail
tests/test_parser.py::TestParserBase::test_new_no_id tests/test_parser.py::TestParserBase::test_new_single_id tests/test_parser.py::TestParserBase::test_new_multi_id tests/test_parser.py::TestParserBase::test_no_destto tests/test_parser.py::TestParserBase::test_new_wrong_id tests/test_parser.py::TestParserBase::test_set_default tests/test_parser.py::TestParserBase::test_call tests/test_parser.py::TestParserBase::test_call_server tests/test_parser.py::TestParserBase::test_call_no_parser tests/test_parser.py::TestParserBase::test_call_default tests/test_parser.py::TestParserBase::test_call_failed tests/test_parser.py::TestParser::test_pattern_header tests/test_parser.py::TestParser::test_pattern_header_matches_all tests/test_parser.py::TestParser::test_pattern_location tests/test_parser.py::TestParser::test_pattern_location_matches_all tests/test_parser.py::TestParser::test_pattern_comment_common tests/test_parser.py::TestParser::test_pattern_comment_common_matches_all tests/test_parser.py::TestParser::test_pattern_all tests/test_parser.py::TestParser::test_pattern_all_matches_all tests/test_parser.py::TestParser::test_parse_msg_no_match tests/test_parser.py::TestParser::test_parse_msg_calls tests/test_parser.py::TestParser::test_parse_msg tests/test_parser.py::TestParser::test_parse_msg_full tests/test_parser.py::TestParser::test_parse_msg_delete_update tests/test_parser.py::TestParser::test_parse_msg_comment tests/test_parser.py::TestParser::test_parse_digipeaters tests/test_parser.py::TestParser::test_parse_digipeaters_relayed tests/test_parser.py::TestParser::test_parse_digipeaters_unknown_format tests/test_parser.py::TestParser::test_parse_heading_speed tests/test_parser.py::TestParser::test_parse_heading_speed_both_missing tests/test_parser.py::TestParser::test_parse_heading_speed_null_input tests/test_parser.py::TestParser::test_parse_altitude tests/test_parser.py::TestParser::test_parse_altitude_missing tests/test_parser.py::TestParser::test_parse_attrs tests/test_parser.py::TestParser::test_parse_timestamp_h tests/test_parser.py::TestParser::test_parse_timestamp_z tests/test_parser.py::TestParser::test_parse_time_past tests/test_parser.py::TestParser::test_parse_time_future tests/test_parser.py::TestParser::test_parse_datetime tests/test_parser.py::TestParser::test_parse_location_sign tests/test_parser.py::TestParser::test_parse_location_value tests/test_parser.py::TestParser::test_parse_protocol_specific tests/test_parser.py::TestParser::test_get_location_update_func tests/test_parser.py::TestParser::test_update_location_decimal_same tests/test_parser.py::TestParser::test_update_location_decimal_positive tests/test_parser.py::TestParser::test_update_location_decimal_negative tests/test_parser.py::TestParser::test_call tests/test_parser.py::TestParser::test_update_data tests/test_parser.py::TestParser::test_update_data_missing tests/test_parser.py::TestAPRS::test_parse_protocol_specific tests/test_parser.py::TestAPRS::test_parse_id_string tests/test_parser.py::TestNaviter::test_parse_protocol_specific tests/test_parser.py::TestNaviter::test_parse_id_string tests/test_parser.py::TestSpot::test_parse_protocol_specific tests/test_parser.py::TestSpot::test_parse_protocol_specific_fail tests/test_parser.py::TestSpider::test_parse_protocol_specific tests/test_parser.py::TestSpider::test_parse_protocol_specific_fail tests/test_parser.py::TestSkylines::test_parse_protocol_specific tests/test_parser.py::TestSkylines::test_parse_protocol_specific_fail tests/test_parser.py::TestServerParser::test_parse_message_beacon tests/test_parser.py::TestServerParser::test_parse_message_status tests/test_parser.py::TestServerParser::test_parse_beacon_comment
ogn_lib/parser.py
ogn_lib/parser.py