EnginemanThanks for your kind approval P & P.
I got my buddy in Moron, Argentina, to photograph his Dataplate square on (image attached of the Wolseley Renault 80hp plate) then photoshopped wording changes,top and bottom.I then gave the revised image to a local Nameplate/Control Panel fabricator who do both engraved and etched ‘plates.The image is then used to create an acid resist overlay to a sheet brass (bit like decal) so that only the “ground” between letters and data-cartouches is acid-etched away. I drank the whisky first and then hit the stamps as if anybody had done it by hand (how true). Fixing was by 4 Hammer-Drive Pins into the Ali Sump. [ATTACH=CONFIG]250390[/ATTACH][ATTACH=CONFIG]250389[/ATTACH][ATTACH=CONFIG]250391[/ATTACH]
Cheers
Brian
EnginemanHi again all,
More pics ref Renault 70hp V-8..Real and Dummy.
The dual-engine Test-Bed image was taken at Montrose c 1914, and shows a neat “built on the station” gallows, with at LHS a 70hp Pusher-configured unit (ducted fan and carb at prop-end) and RHS another “Pusher but an 80hp unit. For Renault V-8 type-spotters,check the valvegear .The 70hp had symmetrical heads all-round(exh pushrod on rhs of cyl.centrelines) 80hp heads were handed in 2 pairs in each bank. The 70hp, with staggered banks of cyls, had con-rods side by side on common crankpins,while 80 hp had fork/blade rods so cyls were in line across engine.The other b & w image shows a 70hp under test at Rolls Royce Derby 1915.I made a “special dataplate” for the dummy engine,photoetched on brass .This was based on a photograph of an Argentinian Museum engine, with mods to reflect place of manufacture (my garage, not BMW).[ATTACH=CONFIG]250363[/ATTACH][ATTACH=CONFIG]250364[/ATTACH][ATTACH=CONFIG]250365[/ATTACH][ATTACH=[ATTACH=CONFIG]250366[/ATTACH][ATTACH=CONFIG]250367[/ATTACH][ATTACH=CONFIG]250368[/ATTACH]
EnginemanThank you Paul,
your help with verifying that your Cirrus cylinders’ dimensions would allow me to use some new castings and modify them to Renault profile made a big difference to progress on the project. Your name is now permanently displayed by the exhibit on our “Acknowledgements” board
When I checked an ADC V-8 for cylinder profile on a DH51, I found that the scalloped fin recesses characteristic of the Renault’s side inlet valve were still there, although Halford had made the ADC engine ohv for both exhaust and inlet.
Airdisco had bought thousands of surplus Renault cylinders, which found use on the V-8 and Cirrus 1.The ADC-V-8 also retains the Renault’s outside flywheel.Anoraks-list is still pending. Cheers Brian[ATTACH=CONFIG]250350[/ATTACH][ATTACH=CONFIG]250351[/ATTACH][ATTACH=CONFIG]250352[/ATTACH]
EnginemanHappy Christmas Andy,
Your suggestion re Old Warden has died a death. I’ve visited twice and taken photos through the glass cover. I contacted the actual owners in Brum months ago. They refused to allow me measurement-access, even if Shuttleworth agreed.Their final excuse was there might be asbestos present ! I only asked for external measurement, with no dismantling,so was most disappointed. I have two other prospects for this operation and am very hopeful of one of them coming good in the New Year.
Thanks for your interest anyway. Napier Lions eh ? oooooooooh
Cheers
Brian
EnginemanHappy Christmas Sabrejet (F86 or F100 ? )
Thanks for the offer of assistance with Richard C,but I don’t want to aggrevate the man in case he was about to send my dimensions questionnaire back ! However, if my other inquiries fail and R hasn’t responded by end of January I might take you up on your offer. Its a kind thought.
Cheers
Brian
EnginemanThe “small car” (GN ) trundles up Shelsey Walsh in 37 secs,which puts a few modern racers to shame. However,though live I’ve yet to get a response from the intrepid pilot about running a rule under his bonnet.
Meantime, attached pics show mock-up (prior to real thing)of a 1908 J.A.P.[ATTACH=CONFIG]250335[/ATTACH]cylinder/head we do know about. Back on the Renault, I still have to add a few oil leaks.[ATTACH=CONFIG]250333[/ATTACH]
Brian
EnginemanThanks gents, for your kind words. They make the toil worth while, after one has “given it away” having lived with it for so long. I chickened-out on making a dummy Claudel Hobson Carb when delivery date loomed and exhausts were still to do.
I could add it later, but I have a pressing commitment to get data together to build a running 1909 J.A.P. 35hp V-8 ohv aero engine. It’s a simpler engine ,but reference motors are few (four) and owners/guardians very shy about letting one measure things(even externally.Back to the Renault….when I got to the first build-up of the 839 parts(inc fasteners) the challenge was indeed becoming “enjoyable”. A Clerget (for the Museum’s Camel ) was going to be next, but I decided I should let another volunteer have a go, or tidy up the replica that is installed at the moment.
Attached another image of Le Moteur, and BE2a[ATTACH=CONFIG]250331[/ATTACH].
Brian
EnginemanFurther to my update on the “Visit to Montrose Air Station ” thread,here are few pictures of my dummy-engine effort,completed August 1st 2016,after two years work.It necessitated 86 drawings to be created to make the parts,although its not a runner.
Brian[ATTACH=CONFIG]250328[/ATTACH][ATTACH=CONFIG]250329[/ATTACH]
Engineman[ATTACH=CONFIG]250327[/ATTACH]
The dummy 1913 Renault 70hp WB V-8 engine ,nearly ready to leave its build workshop (my garage in Brechin), to be installed in the replica BE2a at Montrose in August 2016
EnginemanThanks guys,for your appreciated comments. As a volunteer member of Montrose Air Station Heritage Centre I was responsible for constructing the Renault 70hp WB replica engine.Sadly there were only 3 extant drawing in N.A. Kew, so my first task was to reverse-engineer from the few remaining museum examples and a G.A. drawing. Eighty six drawings later I could start to make the bits. As many of you will know the Renault begat the Cirrus in no small measure,courtesy of Frank Halford making the ADC V-8 (as in Miss Kenya DH53 at Old Warden ) and then the Cirrus 1/Cirrus II/Hermes etc. So I tracked down a casting-pattern for Cirrus Cylinders and modified the resultant castings to genuine Renault profile. Being a non working exhibit the motor lacks a crankshaft/c.rods and pistons,but has everything else. I also conjured up a mock-up Elliot Instrument Board, as sown in one of Mothminor’s great images.
This all goes back to a Thread I started in 2014, so the engine-project cost me 2 years of my life and gradually blocked up my garage.
Best Wishes to all for 2017
Engineman (Brian )
Engineman“Avro Type Turnbuckles” wanted. Are you sorted on 4/5mm turnbuckles ? If not , can you supply details/drawing /
I have a bag of small-thread turnbuckle parts which might help.
Cheers
Brian
EnginemanJust another “thank you” to Mark P,Mike J, Air Ministry and Lazy 8 for taking the time to get me off the blocks with my Replica Engine project. The ensuing research quickly revealed how little documentary record remains (at least not in deep store) of this air-cooled V-8 engine. As the engine was improved,through 80 hp, RAF 1a, etc,so the surviving drawings,pictures, etc increase in number and quality. But,since I am building an accurate model of the 70hp WB engine I have had to scratch deeper and widen my search, not only to Oz and NZ but Argentina,Canada,Italy,Switzerland,and Denmark. I’m now content that I have a specification and dimensional data accurate enough to reverse engineer and build a decent thing.
I would like to lay my hands on some detailed drawings and pictures (apart from those in the CH Manual, which are mostly sections) of the Claudel Hobson RAF type 30mm carburetter. A u/s unit would be the best hope, but if it has to be a model of the Carb I would like as much detail as possible. Any suggestions will be actioned immediately.
Thanks again guys.
Brian
EnginemanHi Bob,
You intrigue me with “A.A.Scott’s 2nd aero engine design”.I was not aware of a first,and Ive been a Scott man for years,so tell me more. The 2AS Aero Engine was designed by the same man ,William Cull, who designed the 3-cylinder motorcycle watercooled unit and the 6-cylinder in-line car engine, but did not share components with it. The air-cooled 2AS of 1935 was of 652cc ,73 x 78,2:1 reduction gear between crank and propshaft,6.8:1 c.r. 16bhp at 3,200rpm (crank) and 28bhp at 4,000 rpm (crankshaft).
A nice motor,strangely designed by Cull with only one type of airfarme in mind,although after the “ban” on the Flea some were employed on a few prototype Ultralights.
Cheers
Brian
EnginemanVery interested to see this thread,as I havesome knowledge of the type and its engines,which were various in the “craze” home-building period in the five years bedore WW2. The “ban” which “grounded” a fundamentaly flawed concept(and therefore saved some lives) meant that a large number of the hundreds built were broken up and their engines scattered.The interesting point about the Scott 2AS engine in G-AFFI is that it is not “a motorcycle engine” despite the use of the name “Flying Squirrel” always associated with the Scott company’s legendary motorcycles. None of the motorcycle-engine parts will fit the 2AS. Cull the Scott designer,produced a very nice specific design just for the HM14 Flying Flea , which was perceived to have a huge amateur flier’s market. The design follows the French Aubier et Dunne twin cylinder 2 air-cooled 2 stroke,used by Henri Mignet in his development aircraft (as per the a/c he flew across the Channel to Shoreham). I have power curves vs the Douglas flat twin motorcycle engine which was cheaper (ex motorcycle). The 2AS was not known to be a good starter (another life saver) but produced good power for the time. I could bore you all day on these machines/engines but if you wish to be so entertained,just pick up a copy of my Book (commercial) “Douglas Light Aero Engines from Kingswood to Cathcart” which illustrates the Scott among a score of other competitor engines to the Douglas twin, and the Flea among 50 Ultralight airfarmes that they powered from 1923.(some were even military Ground Trainers!) If you find a spare 2AS Scott I would like one.
Cheers
Brian
EnginemanThanks for Members’ responses for Reanult V-8 Data
Thank you gentlemen for your speedy assistance in my quest for information. I shall follow up all the suggestions right away. I have had some responses to my own searches,but as yet no drawings or data. The RAAF Point Cook Museum suggestion sounds very promising. I’m on all of them today.
Brian
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