The type of launch submerged or surfaced was selected by means of a director valve. Torpedo tube flooding and drainage installation Drawing 1. The torpedo compensating tank's capacity was greater than torpedo tube capacity and was initially filled with water. Every tube purchase is backed by my guarantee. An undesirable result was the appearance of air bubbles on the surface of the water, which betrayed the position of the attacking boat. At the instant of firing, the pressure below the piston was release to the atmosphere through the vent line 6.
When fired, the firing rod was moved back towards the rear end of tube entering a special socket on the rotating ring locking the breech door. When submerged, the vent valve m was opened automatically allowing the venting of the pressurized air into the boat. Argunners Magazine is also a central resource offering the latest stories, articles and news related to war history. This one was either stuck during battle or ditched during retreat in order for it not to fall back into the Russian enemies hands. Two times less current maintains the battery's temperature at 30 °C. The tubes were not provided with an interlock that would prevent launching torpedo with the connected powering cable.
Finally the muzzle door was closed and the tube was drained. The time to heat reserve torpedo's batteries up to 30 °C is about 20-25 hours. Aft torpedo tube on U-995. Its inner circuit consists of the following: a two pole isolating switch, a moving coil ammeter reading up to 20 A and enclosed in a bakelite case, a bi-metal relay switch and heater sealed into a glass tube, a small 1 nF mica capacitor and a 600 Ohm resister. For that reason the tubes were easily damaged by explosions of aerial bombs and depth charges.
Opening the pilot valve caused the firing valve to open and blow pressurized air from the air flask through the director valve into the space between piston and breech door in case of submerged launch or between piston and the aft part of torpedo in the case of surfaced launch. Each tube was fitted with two handles for turning the shaft - one near the rear end of the tube and one in the middle of the tube. Interlocks Torpedo tubes were fitted with a number of interlocks, which prevented improper operation of the torpedo tubes which endangered the safety of the boat. The installation was composed of torpedo tube Rohr 5 , torpedo compensating tank Torp Zelle 1 , vent pipes, drainage pipes and valves: feeding valve c2 which connected the installation with boat's low pressure system, control valve q , cut-off valves g , equalization valve h , drain valve i and vent valve k1. Although, when surfaced without proper attention and preservation, degradation often occurs rather rapidly. These torpedoes required additional setting gear which adjusted additional angles.
The resistance grids of all the heating plates of a battery are connected in series. Master valve o1 opened the high pressure air supply. It was intended to catch air bubbles, which escaped from tube during torpedo launching. This same StuG is now in driving condition, see the video below, which is the same StuG after restoration: Jagdpanzer 38 t Amazing footage from a German Jagdpanzer 38 t Hetzer, tank destroyer, being recovered from the Baltic Sea.
This hole was closed with a water-tight plug when not in use. Pressurized air was blown in sequence through the pipes s2 , s1 and s pushing away respectively external, middle and internal mine. The circuit is powered from the regulated part 110 V of the boat's electric network. The piston was made from steel, weighed about 35 kg and had two guide wings on its edge which fitted into guide recesses inside the torpedo tube which ran almost the length of the tube up to about 90 cm before the muzzle door. Electric heaters controlled by a thermostat were embedded in the cells for this purpose.
The 1 nF capacitor is connected across the bi-metal switch in order to protect the contacts by reducing sparing, on breaking the circuit, to a minimum. But even at periscope depth during submerged torpedo attack, the tubes were at a depth of ca 10 m, where the external pressure was about two times greater than the internal pressure and effectively prevented the opening of the muzzle doors. Even after more than 60 years in the water, the wheels are still turning. The G7e torpedo battery consists of two battery trays. Smiths Medical is part of the global technology business Smiths Group plc. The receiver in the forward torpedo room also received the spread angle for a salvo shot.
What Is Your 100% Money Back Satisfaction Guarantee? That's why before going to a greater depth the muzzle doors should be shut. The most important was the gyro angle setting which defined the torpedo course after leaving the tube. Then the compensating tank could be empted into the sea by means of pressurized air. The receiver passed modified gyro angles to the torpedo tubes selected for the salvo shot. The thermostat has a form of contact thermometer - a long glass tube inserted through the tray's top cover into the electrolyte.
Product s described may not be licensed or available for sale in all countries. When the air started venting from the vent valve q , the pressurized air was cut off and valve i was closed. The matching of the tonal balance of tubes to a particular system is akin to matching proper cables. This was probably not done because there would also have to be provisions for ventilating the battery compartment because of hydrogen gas generated during the charging process and that would just further complicate the torpedo tube. The torpedo stop bolt and tripper latch casing on the torpedo tube No 4 in the forward torpedo room of the U-995.
Rod opening valve inflow of pressurized air into the mine stop bolt actuator. This type of splashless launching gear was simple but required precise manufacturing of the tube and piston. The setting gears were automatically withdrawn by the operation of the firing rod. The force acting on the upper, beveled part of the piston moved it down and opened the firing valve.