Try also over on RAF Commands Johnnie – they are very helpful over there.
It’s a political term! 🙂
I use it all the time on corroded parts – it is is a balance between finding something that is able to deal with the corrosion – glass bead is not tough enough sometimes. If i’m just removing paint, then I use glass bead.
There’s no point blasting if you don’t get rid of the corrosion! Glass bead often leaves visible pockets behind.
I’d have no qualms about hitting that lot with glass bead, those arms wouldn’t take more than 5 minutes. Are the parts for a flyer or static? If you were local I’d do all those parts at home while you waited.
The arms would look like this afterwards:
The pic shows on here as at least twice actual size, in reality it looks much smoother.
Bonus point to anyone who identifies the (motorcycle) valve cover 😉
Al Oxide is too harsh for aluminium parts, it’s usually used on heavily rusted steel castings.
Quick comparision/guide here:
http://www.tptools.com/lp2/Abrasive_Comparison.html
I watched the making of the Ridley Scott movie Alien this evening. He mentioned that when they built the set for the Nostromo they used a lot of old aircraft parts – apparently they went to a scrapyard (this would have been around 1978 I expect) and found some canberras (not surprising) but then he went on to mention Wellingtons and Spitfires! Wonder if any wartime parts ended up in that film…
Scrapped, I suspect.
In the early 60’s people were still scrapping Spits and Lancaster, and wrecking Mosquitos in movies as late as 1964 😡
Ouch Peter
Sadly a familiar sight – I have my fair share of corroded aluminium and it is a real headache. Careful blasting, followed by painting seems to work provided the finished items are kept in a dry environment, but as others have pointed out some of the softer (kinder) abrasives are not good at getting into the pits and cracks often encountered.
I recently (exceptionally) blasted and painted some parts that came out of the sea – a month later the corrosion had started to eat through the paintwork! Luckily most people don’t have this added problem so it’s not really relevent 🙂
Chemical treatment sounds promising – might give it a go, but I still think your best bet on simple items such as castings etc is a good old fashioned blast clean with aluminium oxide.
I haven’t used alocrom before either but i’m thinking of trying it.
Interested to see what people say.
For MJR and others. Here are pictures of the three parts that I have corrosions issues on. The first couple of pics are corrosion issues on the ejection seat armrests some, have deeper pitted areas than others. The rest of the pictures are pitting and corrosion issues on gear doors. Two different metals two different issues?
Surely if the corrosion started out on the surface and ends up being covered then it is now deeper? Tony’s only offering advice – no need to be so hawkish Stuart.
Having read through the document thoughtfully provided by TonyT, (circa 1984), it says initially that blasting is the best method of removing corrosion, reducing the time per fastener from hours to minutes, but that the Americans had discovered that using a course abrasive, “peening over” of the metal could occur, trapping corrosion underneath, this was avoided by using softer compounds in the blasting process,(although extending the time taken per fastener); it at no time states that corrosion can be driven deeper into the metal, by this process.
WF – looks like your spinner was made by Rotol if that helps!
Great story!
Fascinating picture!
Not too far away, however, the crew of a Me 110 downed on 4 September legged it towards the nearby gleam of the Channel dragging their inflated rubber dinghy. I interviewed the pilot, called Munich at his Munich home (Munchen in German, of course!) in 1977 and enjoyed some very fine wines from his cellar. The tale he told was all the better as the wine flowed; eventually, a call of “HALT!”, then a shot rang out and the two airman were left holding a hissing sheet of yellow rubber!
I am pretty sure the He 111 crew were apprehended at the aircraft and, I believe, taken to the Sussex flint barn in the background.
I think the codename for breaching the dam is only a very small detail when you consider the massive logistical effort of the raid in terms of aircraft and men, and the effects on those on the ground. Surely this is the really important story here.
I just don’t think it’s worth getting too excited about whether they use the N word or not from a historical point of view. It’s been recorded elsewhere and is well known.
Can’t help ID it i’m afraid but the number looks like late war. I’m sure someone can help. Where’s Anne?
I think we’re all enjoying it Cees! Maybe not quite as much as you are 🙂
Its a shame you can’t keep it at home, but at least it will now be seen and admired by a lot of people, which is just as good in a way.
Steve
The pilfering from this site is fairly well known and has been by collectors. Regarding the willingness to manhandle large items – you’d be surprised – Merlin engines have been removed from hilltops by sheer manpower alone in the past.
As for the suggestion that Gary’s post is advertising the site to further public intereference, that is closing the door after the horse has bolted, and besides the RAF have just removed everything they could anyway.
This is just scaremongering claptrap. The site is on a hillside miles away from a public road. It is too remote and uninteresting to be visited by anyone other than estate workers or aviation scrap dealers. I suspect that the limited pilfering that has happened here has been done by estate employees who are housed near it during the stalking season. Do you, the guys from Waddingto or the estate owner really believe that anyone is capable of manhandling a Lancaster mainwheel – complete with smooth tyre – the six miles or so to the nearest road without the assistance of the estate?
Do you trade in aviation wreckage by any chance, and why did you name this particular site? It seems to me that naming this source for Lancaster parts on a public forum is not exactly the smartest thing to do if you are concerned with the well-being of this crash site. I just get the feeling that you are more concerned with selling parts than preserving the sites.
Best wishes
Steve P
Impressive stuff – some of those frames look very similar Cees!
I think they have to remake a lot of them anyway, so shouldn’t cause any problems seafuryfan. Just a case of people willing to part with the cash 🙂
I suppose a Hurricane repro will be out due to the cost of making all those complicated tubes and their joints, amoung others? Or could HRL do it, given the money? Hmmmm…What a thought!
Interesting question Gerry. Don’t know the answer unfortunately…! Anything is possible…
Hi all,
At risk of looking stupid across the globe I ask advice on the following.Would it be possible for an airman in 1940 to be issued a pair of 41 pattern gauntlets?
There I’ve asked it now! Feels like a weight has been lifted off my shoulders.I have been assured that it did happen and have no reason to doubt but it just doesn’t sound right.
As always, thanks in advance for any assistance offered
Gerry