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rsuggitt

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About rsuggitt

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  1. Many thanks for those scans ! As it happens I'm just about to go off on vacation, I'll take a close look once I'm back.
  2. Many thanks, a page or two woul help confirm we're looking in the right place. I dont think that the sight system was used in any other guns though.
  3. Many thanks for that... I've not encountered that document/manual before. Might it also cover the operation of the 'Bofors Speed and Course Sight ' or 'Bofors Corrector Sight' ?
  4. Thanks, I found tht a while back. Unfortunately, it doesnt show those connectors. I think our model of gun pre-dates the use of external predictors (such as the Kerrison, Sperry, or Vickers predictors). It has a predictor (or more accuratly, a corrector) mounted near the azimuth operator.
  5. We've been looking at the electrical wiring that is on our Bofors 40mm AA gun. A lot of it is for lighting; this is run off a 6v battery and the wiring and connectors are all (naturally) low current. We can trace the wiring runs pretty well. However..... there are some items we are not sure about. There are a couple of heavy-duty pin sockets just to the left of the ejection chute; one has a lead that goes into the centre of the revolve drum, and another lead that goes to a pretty chunky brass brass socket that is positioned just left of the ejection chute. All this is totally separate from the lighting wiring, and we have no idea what it is all for. It looks like you would plug a power supply into one part of this, and some device that needs power into the other; we have no idea why one lead goes into the revolve drum, as it is inacessible and has not electrical brushes on it. The gun is all manual.... no electric motors anywhere. I'll post some photos below. Any ideas anyone.... ? Incidentally, from info in the Terry Gander book we now believe that 'our' gun was made in Poland in about 1942 (but to the 1938 design) and was shipped to Portugal.
  6. We've been looking at the electrical wiring that is on our Bofors 40mm AA gun. A lot of it is for lighting; this is run off a 6v battery and the wiring and connectors are all (naturally) low current. We can trace the wiring runs pretty well. However..... there are some items we are not sure about. There are a couple of heavy-duty pin sockets just to the left of the ejection chute; one has a lead that goes into the centre of the revolve drum, and another lead that goes to a pretty chunky brass brass socket that is positioned just left of the ejection chute. All this is totally separate from the lighting wiring, and we have no idea what it is all for. It looks like you would plug a power supply into one part of this, and some device that needs power into the other; we have no idea why one lead goes into the revolve drum, as it is inacessible and has not electrical brushes on it. The gun is all manual.... no electric motors anywhere. I'll post some photos below. Any ideas anyone.... ? Incidentally, from info in the Terry Gander book we now believe that 'our' gun was made in Poland in about 1942 (but to the 1938 design) and was shipped to Portugal.
  7. Hello ! I'm a volunteer worker at an aviation museum, one of a team looking after and displaying a Bofors 40mm in AA configuration. It's been tucked away at the back of a hangar for 20 years and thi sis the first time a team has been assembled to work on it. We're trying to put together a maintenance programme for it for the winter season... including re-tempering the accumulator / balance springs. The gun is understood to have been made in 1938 or 1939 for the Portugese (and indeed there are Portugese markings on the corrector and one or two other places) but we dont know of any further history. A number '10' is stamped in a number of places but we're not sure of the significance. We're also unsure about the intended operation of the corrector and some of the sight adjustment, and a mysterious dial at the base of the corrector. So, does anyone have access to general manuals for Bofirs guns of this period, and in particular does anyone have information about how the corrector was operated ? Many thanks
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