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BobKat

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Viewing 15 posts - 676 through 690 (of 912 total)
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  • in reply to: Wreckage Of Lancaster ED908 (60-Z) #932219
    BobKat
    Participant

    Peter, thanks for the picture of what may be the main hydraulic feed system filter. Looking at AP2062A this is shown as being near the hydraulic reservoir by the front spar. The filter for the mid-upper turret is shown behind the rear spar. Both are shown in the diagrams as larger that those for the front and rear gun turrets (they have distinct E-prefixed reference numbers), but as the scale of all the drawings is a little different, it is not easy to tell whether this is actually the case or not.

    I wonder whether the early version of the hydraulic system of the Mk.III Lancaster would have been configured slightly differently from the later Canadian-built Mk.X?

    If vacb has a four-bolted filter from a Spitfire, might this also have been used in the Lancaster? As mentioned earlier, what seems to be the AM stores reference code for the gun turret filters is shown as 27B/1407. It is difficult to imagine that our piece is not what is shown in vacb’s picture. Perhaps we need to try to confirm the AM reference for the Spitfire part and see if it is the same as that shown for the Lancaster in AP2062A.

    Hmmm! Not quite as simple as I had thought yesterday evening!

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #932378
    BobKat
    Participant

    vacb, thanks for your response. Your description of the gun turret type fits with Peter’s picture. So that seems to rule them out. However the Lancaster appears to have two further types with an ‘E’ reference according to AP2062A, so maybe we have one of these? It seems a bit more research may be required before we have a positive identification but, hopefully, we seem to be heading in the right direction?

    I guess the ‘FGS’ marking could be ‘AGS’ – Laurent was uncertain – it was difficult to make out and I cannot read it clearly on the photo he has sent.

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #932586
    BobKat
    Participant

    Peter, many thanks for the pictures. I note your cautious response. Your photos appear to show a fitting with five or six bolt positions, whereas vacb’s picture shows just four. I am still not certain whether our piece has five bolt positions, or four with one of these having fractured. The camera angle distorts the perspective slightly – I am assuming only four.

    Your larger picture shows some banding at the top of the filter. I wonder whether this might be the line of brass or copper with the marking ‘FGS’ or similar on the fragment also found?

    vacb, is your photo of a modern equivalent or of an unused ww2 vintage? The picture is very persuasive – the features of our “broken ring” seem to be identical, although the rim does appear to be a little thicker than yours.

    Looking more closely at AP2062A, the front and rear gun turrets’ oil filters have stores reference 27B/1407, whereas the mid-upper turret has type E.60L/3/4/7915. The hydraulic feed system has a high pressure filter E.72L/1/9339. So we seem to have at least three different types of filter on the aircraft. Would Vokes have manufactured all of these?

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #932719
    BobKat
    Participant

    vacb, I was editing my previous post just as you posted your last comments. Yes, they seem to be in the gun turret circuits. I have also found a high pressure oil filter in the hydraulic feed system, but can’t see any others. It’s after midnight my time, so will await any further responses in the morning. Many thanks again – another mystery solved!

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #932726
    BobKat
    Participant

    vacb, have just seen your amended post. Many thanks indeed – the shape looks absolutely right. You will now have to explain to me where this fits into the engine!!

    Or is it nothing to do with the engine at all?

    ……….

    Just checked AP2062A – there is an oil filter in each of the gun turret hydraulic systems. Is this what you are describing?

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #932735
    BobKat
    Participant

    Thanks vacb. I will see if I can find anything. Sadly we are a bit stuck until I have the diameter of our piece.

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #932784
    BobKat
    Participant

    Peter,

    I have found the attached – not a Merlin 28, but similar. I have circled the point which I think you have in mind and also the point at the back of the camshaft casing circled in my earlier picture. These are very different in size and I need Laurent to confirm the dimensions of his piece. I think he may have been too busy digging to have found time to respond!! The generator flange doesn’t seem quite the same shape as our item, but I suppose there are two flanges of similar type at the opposite sides of the joint?

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #932805
    BobKat
    Participant

    Thanks Peter. Any chance of a picture or diagram? I can’t put my hands on anything showing this.

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #933258
    BobKat
    Participant

    Thanks, Peter. I have looked at a few pictures of the generator housing underneath the engine. It is difficult to be certain, but the visible flanges all appear to have six bolts, so not seemingly what we have. So we still have the mystery item circled on my picture?

    I have asked Laurent about the size.

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #933516
    BobKat
    Participant

    Item M6

    I am not surprised that I have had no response to my final effort to identify the previously unidentified items but, despite over 200 views, nobody seems to be able to help with the latest find, M6. Perhaps Laurent is wrong in his assumption that it was an engine part? Unless anybody comes up with some information, I think I will have to renumber it ‘40’ and consign it to the ‘too difficult’ box – Laurent has been numbering the engine parts found with an ‘M’ for ‘Moteur’.

    I did find several pictures of a circular bolted fitting on the top of the rear of the port-side camshaft casing of a Merlin 28 which looked a little like the piece found (could somebody enlighten me as to what the fitting is for – it is unlabelled in all the diagrams I have seen): I have circled the area in the attached picture courtesy of Wikimedia Commons – File: Packard Merlin 28 engine Flickr 7326117948.jpg – Flickr user “summer photo hobby”.

    However Laurent does not think that this is the piece he has found which is aluminium. But presumably there was something similarly shaped which was attached to the bolted fitting– could this be what Laurent has found? I have asked Laurent to confirm its dimensions, but he has been very busy in his spare time over the last few days. I will have some more photos to post shortly.

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #937586
    BobKat
    Participant

    Item M6

    Just as I thought there was going to be a lull, Laurent has found some more pieces which he thinks are from an engine.

    He says that the aluminium pieces all have traces of black paint. On the large piece there is a copper or brass band with the lettering ‘FGS’, ‘FG6’ or ‘FG8’, which may provide a clue, and there is a small Bakelite piece with traces of connectors.

    It is the broken circular piece on the right which someone may recognise as being part of an engine.

    Any thoughts, please?

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #939792
    BobKat
    Participant

    Remaining unidentified items

    Laurent has tried to clean up the bolt in picture no.6, but without success. He says it is “scisaillé” which I think means sheared, and that it is a high strength metal which is why it is so rusted, so much so that he cannot help us further. What he has said is wholly consistent with WV-903’s thought that this is a high-tensile steel bolt with a high loading/shear requirement. Amongst the wreckage found on the trestle table was an engine mounting block (T3 in post #35), so perhaps this bolt could be from the engine mounting.

    I think that I have now posted photographs of all the items which are potentially identifiable from what has been discovered amongst the wreckage so far. I have not troubled with pieces of fuselage with no obvious distinguishing characteristics, nor a number of shapeless fragments. My thanks again to the members of the Forum who have contributed their knowledge to this thread and have helped to identify so many of the objects. Hopefully there will be more to come in due course.

    There still remain, however, a small number of items which have defied all efforts to identify them despite their having distinctive shapes:

    9. the possible fuel tank cap [post #1] – maybe from something like the hydraulic reservoir or glycol tank ??;

    13. the copper pipe – from where? [post #340] – maybe from one of the engines, but what would require copper with its conductive properties, as distinct from aluminium alloy ??;

    15. the suggested equipment mounting bracket [posts #1, #4, # 67, and #308] – maybe something small (with a base about 6 inches by 8 inches?) from amongst the radio/radar equipment ??;

    31. the flanged piece with a circular arc [posts #129 and #196] not positively identified as being from a gun turret as at one time thought, but maybe not from the aircraft – what would that attachment that looks like a snap fastener be used for ??

    33. another piece of copper tubing [post #118] – less than 1 inch in diameter and with what appear to be capped ends.

    There are many others with less hope of success which I have ignored, but any further thoughts on those listed above would be much appreciated. For ease of reference I attach below the photographs originally posted.

    Now that we may have come to a temporary halt, subject to any replies to these final queries, it might be helpful for me to produce a list summarising what has been identified to date. I will work on this.

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #941600
    BobKat
    Participant

    The V-1 Site

    For some unknown reason the pictures just uploaded have not been reproduced at their full size. Hopefully the attached will show more detail as I had originally intended!

    in reply to: Wreckage Of Lancaster ED908 (60-Z) #941616
    BobKat
    Participant

    The V-1 Site

    I have been in touch with Laurent who tells me that extensive searching for wreckage has not been practicable over the summer “à cause des fougères et des ronces” –because of the ferns and brambles of the undergrowth! He has not given up looking and has identified a location where there may be something more to find but, working on his own, the clearance work in the area he wants to search will take some time. He needs to find a few local volunteers!

    He will try to clean the bolt in picture 6 and he confirms that the pipes in picture 13 are indeed copper. I still hope somebody may be able to confirm where copper pipes might have been used – either in the engines or elsewhere.

    However, we do have a new discovery from France. This time, not a piece of wreckage, but an aerial photograph apparently taken in 1947. Its original source is unknown, but it may have been connected with the activities of the No.1 Missing Research & Enquiry Unit after the war, or possibly during the course of work which I understand was undertaken to assess the impact of wartime bombing. It shows what is presumed to be the date (1947) and a reference number ‘110’. If anyone has any other suggestions as to its possible source I would be glad to hear.

    I have attached a cropped part of the full photograph showing the area around the V-1 site. On its left is a present-day picture of the Forêt du Croc with the same area as in the photograph delineated by the white square and with an aiming point photograph taken on 6 July 1944 (see post #110) overlaid on it. The view from some 60 years later is shown without the overlay on the right for comparison with the old photograph. It is remarkable how little the roads and the forest and field boundaries have changed – much of the landscape is immediately recognisable – although the regular patterns of what I assume must have been carefully planted orchards have disappeared. I will leave those following this thread to carry out their own ‘spot the difference’ exercise! At the top of the picture, above le Croc, is the edge of the bois de Pimont. The view from left to right across the old photograph is a distance of a little over 3,000 metres or approximately 2 miles.

    The buildings of the V-1 site were on both sides of the road which can be seen running diagonally from the left arm of the V-shaped junction at the lower centre of the photograph towards the north-west. This is where much of the devastation of the forest as a result of bombing can be seen. The launch ramp, pointing towards London, was located at the southern end of the cleared/bombed area running parallel to, and to the north of, the road beyond the point where it starts to curve westwards. What may have been the path to the firing control bunker and the ramp can be seen leading from the road. Today, the remnants of some of the buildings alongside the roadway are hidden by the foliage of the forest in the modern aerial photograph. Trees have been replanted, but much of the forest floor is covered by undergrowth including the area around a few surviving concrete bases for the ramp supports. These are immediately next to a large bomb crater which looks as if it may have been a direct hit. We were fortunate that local residents were on hand to guide us or we could easily have missed much of what can still be seen.

    The photograph indicates how trying to find pieces of the wreckage from ED908 scattered in the vast area of the forest and fields some distance from the V-1 site is not an easy task!

    in reply to: Lancaster bomb loads #945198
    BobKat
    Participant

    lanc35, a fascinating video clip – many thanks for providing this.

    I agree with you that ‘GF’ is probably a mistype for ‘GP’ and yet the ORB states: 16 x 500 GF, 2 x 500 GP. The two types of bomb were clearly intended to be different!

    With the consent of the copyright holder, I attach a picture of bombs dropping from ED908 on 19 July 1944 – the last mission from which it returned. At first sight this looks like a ‘standard’ 14 bomb load, but the ORB says that 1 x 500lb hung up because of a faulty carrier. From what you say this must have been in the fourth group which would have been loaded four abreast. The bombs dropped were 7 x 1,000lb MC, 4 x 1,000lb GP, 3 x 500lb MC. It is interesting to note the two types of tail fin in the third group of two bombs, which were presumably loaded 3-3-2-4-3.

    ED908’s 18 bombs on 20 July would presumably have been loaded: 4-4-2-4-4.

Viewing 15 posts - 676 through 690 (of 912 total)