WV-903.[ATTACH=CONFIG]222528[/ATTACH][ATTACH=CONFIG]222529[/ATTACH][ATTACH=CONFIG]222530[/ATTACH]Hi JD,
Here’s some Jaguar MB Seat Diagrams /sketches I mentioned other day, including a view of top of headbox which you will find useful. Hope these help.
Bill T.
WV-903.Hi Trumper,
Most welcome sir, just sorry they took so long to find.
BillT.
WV-903.Finally Found those B-36 Goose Bay Pics. Pagen !! Enjoy.
Hi Pagen !!
If you are still around, here are those pics. of The Crashed B-36 I took at Goose Bay,Canada in Summer of 1972. That’s me,by Cockpit, in them dreadful; period trousers and holding Axe. 😮 Just look at that C/pit !! wooooo ( A Newark “have to” for ANON maybe.) Though much stuff has been taken from there since these pics. were taken, the c/pit is still quite OK, but covered in trees and growth now.
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Enjoy guys !!! Sorry they took so long to find.
BillT.
WV-903.Hi Jet Driver,
Looking at your pic. here, if it is of your line from your seat, what I would do is to pick up some small lengths of same white lanyard (These are always around at aerojumbles, evil,Bay,etc. ) and cut and stitch in replacement pieces for the “Chewed” ones. ( Assuming your seat is for static display that is.) you could do a neat job with white cotton thread , dirty it all up a bit and once re-fitted back into headbox, bet very few folks would notice. (Except all ze folks looking here –lol !!! ) My seats are a MK.2D and a 3A, different in many ways, but will look thru my seats literature and post back here if I find anything relating to this aspect of the Mk. 9 MB Seat. Best of luck !!
Bill T.
WV-903.Hi BobKat,
Great input from everyone here. Thanks for that Merlin Pete. I’ve got some info on early Pneumatic Aircraft Brake systems now,(Via Terry P ) that I’ll post here shortly. But that Carburettor Flange unit(Or whatever it is ) still bugs me and Merlin Pete mentions it could also be for a ground power unit of some kind, poss. carried on board a Lancaster. :confused: Now !! I’m sure the Lancs did carry some sort of auxiliary power unit onboard, not all thru the war but for specified tasks. ( something like the B-17’s /B-29’s carried ) And I know the British Vincent Motorcycle Company made a power unit for carrying in WW2 Aircraft, but cannot for the life of me remember what its purpose was. Does this jog anyone else’s memories ? That Part number/ser. No. U mention BobKat, (Stamped on this “Flanged assy”) VJN 9 42 Hmmmmmmm !!!! Veeeeerrrryyyy Interesting
Me-thinks this latest hole dig that Laurent is covering could be very interesting on finds. My gut feeling is something heavy could have caused this and even if that was removed, plenty of bits will still be in there.
Bill T.
WV-903.Woo,
Another slice of RAF History gorne. Got plenty of flying in them not all RAF ones, so plenty memories. :very_drunk: OK !! Who’s going for a C/pit then ?
Bill T.
WV-903.Thanks Allan,
For info and pics. yes !! concur on Renault Valve assy. The Stirling wheel section certainly does show all clearly with wheel hub bolts and plates. PM for you m8.
Bill T.
WV-903.Great stuff, Cheers fella’s,
This sounds like it could get interesting, —looking forward to what Laurent finds and wish him well in his endeavours over ED-908.
Hi Allan (Air Ministry )!! Would you have any info related to British WW2 RAF/ Navy Aircraft Dunlop Brake Units and systems in your comprehensive emporium of literature /info. —:) I’m at a dead end in my asking around. Got a feeling this could be needed soon. Thanks !!!
Bill T.
WV-903.Yes !! has to be Nice find. AH Numbers are appertaining to Dunlop equipment, so looks good.(I think AHO is for systems parts ) Tell Laurent to keep looking in that area. That item is in remarkably good condition. I don’t have any info or AP’s on Dunlop Brakes of any era, which is a shame. Looking at Laurents pic. I could be wrong, but that brake pipe looks to be made out of stainless steel wire / weave wrap on outside. I know that Brit Motorcycles of that period used this arrangement for the fuel lines on some machines. Would be nice to be able to put a positive label on it. I would think the modern equivalent,( as Peter shows in his pic ) would be a rubber flexy pipe though.
Hey !! great break through, who knows what other related stuff/bits are down there. :applause:
Bill T.
WV-903.Nice find BobKat,
Not located any of my other stuff yet. The only inlet and exhaust valves I can think of are the ones In the Dunlop Dual Relay Valve, that’s where the hissing noise comes from during applications of brakes. I would think that the 1932 reference would have been the very first beginnings of Air Systems and Braking via this medium and possibly the Dual Brake Relay Valves inception. Item 2 in that pic. will be the housing (Or channel ) for the Inflation Valve brass tube to lie in. This pipe was connected in to inner tube same way as a lorry’s. From a central position fastened to Inner Tube it almost immediately turned thru 90 degrees and ran out to that those end slots in loose flange and main Hub body, so it could be accessed by maintenance crew.
AH 2238 isn’t listed in my Dunlop lists, but AH 2236 is and this was a much smaller wheel than the Lanc. Mains. AH 2236 was used on Lanc and Lincoln, so it must be the Tailwheel.
The “Mystery ” Object remains such.
Bill T.
WV-903.Hi again guys,
Yes !!- these pics. I’ve posted are only ones I can find (From my AP 2337 ) and do feature the later wheel versions for Lanc and Lincoln. They are posted here just to give you a general construction idea. As the AP itself refers you back to these pics, when looking at Wheel AH 8405. So this is as near as I can get to a Lanc wheel for 1943.
BobKat, answers to your queries:- Peters Pics. of those rear side of wheel boltheads can be looked at 2 ways. 1) That there is a boring into back of bolthead, into which something might fit. or 2) It is a spigot sticking out towards you. Whichever,– are both puzzling, I for one cannot think what they relate to, unless 2) were spigots that held the Brake drum in place on inside of Hub structure. My feeling is that we might be missing some long deleted info about Wheel modifications from 1943 and onwards towards today.) Yes !! The Brake drum would almost certainly be fastened to the wheel side wall as they were later. BUT !! The AP 2337 mentions that these type of drum brakes “In the early days”. ??? were actually pressed/ shrunk in to the inside of the wheel inner diameter, but this process caused a lot of heat distortion and wheels breaking up and other problems, so at some point in time (Which I think has to be during WW2 ) big wheels modifications were taking place at Fort Dunlop. But still, I myself cannot see how that butterfly valved “Mystery” object would have been involved.
The brake Air pressure in these type of systems would be regulated to 600 psi up-stream of the Dunlop Dual brake Relay valve and the relay valve itself controls the Air pressure down to each Brake unit. ( setting top pressure to around 300psi+. ). The Pilots input Via his Yoke Lever and linkage down to the Relay valve controls the amount of pressure for a specific or given instance. (I’ll have to go back to my Old RAF School Notes and AP’s to find diagrams and wording but I will and get back to you, and catch up on old pneumatic systems ,as at moment, it’s from memory ) So there would never be a butterfly type pressure control down at the main wheel. Air Pressure fluctuations at the Dual Brake Relay valve will be immediately felt at the Wheel Brake end of the system. That “Mystery” item could well be from something else that got put in the hole. (If it is definitely NOT from a system in ED-908.)
Hope that has covered all questions this time around, lol !! These British pneumatic brake systems were very common right up into 1960’s, until the Hydraulics methods gradually took over and of course were used on The Spitfire,Mosquito,Vampire, Twin Pin,etc,etc,etc. Cheers guys !!!
Bill T.
WV-903.[ATTACH=CONFIG]222063[/ATTACH][ATTACH=CONFIG]222064[/ATTACH][ATTACH=CONFIG]222065[/ATTACH]Hello again BobKat,
Meant to get back to you sooner on this saga, but family happenings scuppered it. Yes, the “mystery” piece mystery continues. As mentioned earlier, my 2 penny’s worth of vote’s say’s it is an object that might not be off a Lancaster, but if it was ,no way would it be a main wheel item, brakes or otherwise. Thats a sticking point then for the moment. So turning to examine a Lanc mainwheel assy. as best we can, I’ve finally got my AP 2337 and Dunlop,etc, mainwheels lists back and up in front. The 2337 and lists are dated from circa 1974, but hold a small wealth of info. So before I get launched into these, must mention to you BobKat that Lancaster and many other Brit aircraft of that period were fitted with pneumatic braking system as against a hydraulic set-up. The Lancaster definitely had pneumatic Drum brakes, ie :- Pressure from engine driven Pumps(Air compressors )off each Merlin engine were regulated ,stored, cleaned,etc,etc, (Downstream ) to around 600psi thence to the Brakes system via a Dunlop Dual Brake Relay valve, where pressure was reduced to around 300+psi and directed to each brake, via use of inner valve connected to Rudder pedals to give differential braking. The pilot controlled amount of pressure admitted to Relay Valve Via his Hand brake lever on Control Yoke and steered the aircraft on the ground by use of Rudder pedals. Air pressure admitted to each mainwheel brake unit went into and inflated the Rubber “Bag”fitted under the brake shoes, which in turn made contact with the spinning Brake drum housed within the mainwheel. The brake Unit being attached to axle/ Leg mountings. Lancaster Complete Mainwheel set -ups with Tyres mounted,(These were of the “Balloon type inflated to around 65 psi and were suitable for operating off Grass or tarmac Runaways. ) were sizes:- 64″x 22.5″x 26” and were also used in :- Halifax—Lincoln–Wellington–York—Tudor—-and in one Mk. of Bristol Freighter. But not the Stirling bomber. Tyres were fitted with an inner tube just same as car industry uses. Aircraft Mainwheels for this period and later were, the “Well Based” type.—- Loose Flange—or Divided Hubs. Made out of either aluminium or magnesium alloys. Later in 1940’s, the Loose flanges were modified to 3-piece flanges, the idea being that these prevented the loose flange becoming detached after a deflation. The brake drums in wheel were light steel pressings with side flanges, these being fastened to the inside of wheel and fitted with an alloy liner making them Bi-metal. To help with cooling the drums were ribbed and some mainwheels had cooling vanes cast in. ( The Lanc wheel I saw at Newark last week had these cooling vanes fitted. )
The Lancaster had Dunlop Wheels:- AH 8268 Lancaster VII
AH 8405 Lancaster VII fitted with Brake unit AH 8269
AH 9420 Lancaster ?
AH 9596 Lancaster ? fitted with brake unit AH 9419
These were loose flanged and AH 9596 had the 3 piece loose flange fitted. ( But whether ED 908 had these when she crashed is debatable, my feeling is these were an addition for use on Our RAF Flying Lancaster of today. ) cr
Have attached some pics. of similar Mainwheels to the Lancaster ones to give you an idea. The Lanc Mainwheel had those round holes in sides of flanges, which look to me like weight saving ideas,( but I stand to be corrected on that.)
Don’t have any pics. of the brake units as a separate entity yet, so you’ll have to look carefully. Would be a nice find if Laurent can come up with pieces of a mainwheel. That might help ID the exact type fitted to ED 908.
Hope this article helps clear up any confusion.
Bill T.
ps:- Have no info here on Dunlop Brake Units (apart from what is mentioned. ) so drawn a blank there for a while. Also checked through the 2337 for Palmer and Goodyear mainwheel assy’s but nothin matches that I can see. I always thought that the Lancaster was Fitted with Dunlop tyres and wheels/Brakes anyhow.
WV-903.Oohhhhh–rgr that Mike. Thanks.
Bill T.
WV-903.Hello Sven,
The person who readily comes to mind on these would be forumite: Terry P. I’ll pass the word along to him.
Bill T.
WV-903.Hi fella’s,
Yi yi yi !!!! lol Wish I could see what you guys can see, but I can’t. I can see in those 2 Lanc Wheel hub pics.—–A, what looks like, steel thin flat flange or locking plate that seems to hold a steel pin in situ. The plate being held in situ by the 2 rusty outer bolts (heads ). Could really do with an exploded AP Vol 3 view of Lanc mainwheel hub to give some clues. cos I’ve no idea what that pin is for. Can some kind soul explain how and why item VJN 9 42 would fit in a Lanc mainwheel hub, cos it baffles me. We’ll have to disagree here till more concrete evidence turns up. :angel: Interesting views guys.#
Anyhow, I’ll continue on my theory about item VJN 9 42 being a system part. Looking at the pics of it again, especially the spring arrangement. Follow that spring back to its coils and anchor point and look again at the large rusty steel flat radiused lump that sits up and out of the casting. I would say that radius fits the radius on the raised part of casting that the spring sits in and I wonder if the steel piece is hinged at the join with casting, if so, it looks like a manual pump lever of sorts, that could have been worked thru these angles. Also there are 2 steel pieces that look riveted in and my guess is the inside one moved as some sort of trigger operated by the spring and that trigger is linked to the centre spindle. Again, the SU Carburettor comes to mind, if it was off one, that butterfly valve would be a manual choke for cold starts. Sorry guys, I’ll have another Spit Ale here and get ready to depart to another planet :very_drunk::) lol !!!!
Are there any more part numbers on VJN 9 42 ? Might give some more clues to some one. That VJN 9 42 is bugging me as to what it was used for on ED 908. ( Assuming it came from 908 )
Over and out ,signing off and nice to see this thread running and running.
Bill T.
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