into the chamber 45 which causes outer tube 12 to be fired into the ground the baffle 56 includes a locating ring 58 which forms a snug fit around the sabo 46 such that the launcher remains in alignment with the outer tube which is emplaced in the ground accordingly the outer tube when emplaced remains in coaxial alignment with the barrel 42 as also shown in fig2 the breach seal 52 and sabo 46 may be held in position prior to firing by a plurality of resilient members 60 which exert a separating force between the seal and the sabo although a launcher of a particular construction is illustrated in fig2 it shall be understood that other launcher types and methods can be used to emplace the outer tube within the ground for example a launcher which makes use of an explosive charge may be used alternatively a vibratory means may also be used along with some force which helps to ease the outer tube into the ground as stated above it is preferable to avoid excavation for emplacement of the outer tube as such excavation is equipment and manpower intensive and environmentally unfriendly fig3 illustrates a second embodiment 10 u2032 of the present invention the support device.