The Muller mechanical or Pendulous Integrating Gyroscopic Accelerometer – today normally referred to as a PIGA. Designed by Fritz K Muller.
Album: Missile guidance equipment
Categories: Missile guidence
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The J device no1 (J Gerate Eins). The full name of this device is: the Muller Pendulous (or mechanical) Integrating Gyroscopic Accelerometer – today normally referred to as a PIGA. The device, designed by Fritz K Muller, operates as a switch to initiate rocket engine shutdown and is able to smoothly record and accumulate every moment of acceleration, without any kind of recording resolution or discrete time interval limit, of the rocket’s entire motor burn phase, and at the same time process this accumulated acceleration with respect to time as a gradually increasing velocity. In the case of the V2 missile, when the correct predetermined velocity is reached, the velicity sufficient to achieve the desired range of the missile, the device trips the relays that close valves that shutdown the supply of steam to the turbo-pump, and thus shutdown the rocket motor itself.
Categories: Missile guidence
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Hydraulic servo from fin 1 or 3 of the V2 missile, collected with other debris following a combat impact.
Album: A4-V2 Hydraulic servo and electric trim motor
Categories: Missile guidence V2 Missile relics
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Two Askania (designed) hydraulic gear pumps – the examples shown here have two ceramic insulators with with Nichrome wire type heating elements. The heaters are located at each end of the pump on the long axis. The pump on the right still has its power supply wires attached and was easily repaired and restored to full function in our workshop.This type of pump (with heaters) seem to be rare among the debris of European combat impact sites but fairly common in debris collections emanating from research flights in Peenemünde and parts of Poland. An explanation maybe that the oil could be warmed up sufficiently simply by starting all four hydraulic gear pumps sooner in the pre-launch sequence. The only downside being that the already noisey missile would be making yet more noise in the risky period leading up to launch.
Album: A4-V2 Hydraulic servo and electric trim motor
Categories: Missile guidence V2 Missile relics
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Copyright: V2 Rocket History
