RadarArchive, are there any numbers on the spider?
Can you guess why I am asking (Cylinder P4330 a clue)?
If you have a hotch-potch it may be that the spider belongs to the cylinder and/or barrel, and is type 4 as well. Does everything fit together?
What does the 67mm measurement you made relate to? It would be nice if that’s a spider ‘leg’ diameter..
Without mentioning the ‘W’ word, we might need to talk….;)
RA tells you it’s a Rotol blade. Def Hamilton Standard Hydromatic type hub.. Tiny clarification – If it’s a Ham Stand 23-E-50 then to be from a Hurricane it would have to be a Hurricane with a US Packard Merlin (Canadian?) – UK Merlins would require a 23-E-X ((X indicating “foreign” spline type). However, I imagine the 54770 is also appropriate to the 23-E-X, so this is also feasible? Merlin Pete?
Try these chaps – most comprehensive list of manufacturers drawings I have seen commercially available: http://warbirdsrestoration.com/
Those CD’s do the rounds a lot, and while some of it is indeed original, the amount of material is disappointing.
I am going to be a little more forthright than usual in defence of the people who have given up their free time for our project. No-one on this project is a professional web designer or editor – if you are we’d be delighted to hear from you if you are prepared to work for free..
They are, however, all people with jobs, lives and families. Any free time they have is normally taken up with getting the real work in hand – building a Whirlwind, not a website – as right as possible. Basically this means doing the unglamorous and thankless stuff Matt was talking about. Anyone who wants to help with that is very, very welcome to do so. In fact, moves are afoot to itemise the outstanding avenues that anyone is welcome to pursue, whether they are registered on the site or not. This is not a clique of those in the know – there really is nothing to know.
There are some very good reasons why part of the site was fenced off – as has been explained several times already, chief among these was the fact that AgustaWestland asked us to. This was when all parties assumed we would be needing to discuss the reams and reams of detailed production drawings we would find!
In those early stages we weren’t too clear on what info should go where, none of us as far as I know having done a website like this before. In the light of AW’s concerns we erred on the side of caution. We are taking on board the criticism and are addressing this right now (chaps, if you are reading this, I can’t get to my Hotmail – but I am in full support of Matt’s proposals in this direction). As for making the forum read-only to the unregistered – I don’t know that any of us even knows HOW to do this (see my first point)!
When there are some nice pics of assemblies to show, we will show them. Until then, apart from Matt’s CAD work (which he is now publishing to the site) progress could only be illustrated by dusty boxes full of largely irrelevant paper, and the very occasional ‘find’ which we are then probably obliged not to publish! Please don’t get the idea that there’s loads of stuff no-one is allowed to see – there really isn’t. Of course, if you are prepared to put in the legwork and find a new document or drawing in an archive, you can look at it all you want! This is the basis on which we have proceeded so far, and all are welcome to join in.
To correct one suggestion made earlier before it becomes ‘fact’ and self-fulfilling, support isn’t waning at all. Those who know about these things – and Steve, thanks for acknowleging that as someone who does know their stuff – know that progress is slow and painful, especially in the early stages, and therefore do not get downhearted or feel that things are being kept from them if they don’t see exciting bits of aeroplane in the first months or even years.
However, positive criticism around the website and registration from all those with the best interests of the project at heart has been gratefully received. Thanks to all who contributed.
Couldn’t agree more TonyT, but there are several more which seriously detract from wanting to continue to be a part of the project.
Pity really.
All the best,
Steve.
Talk to me, Steve – what’s got your goat? We don’t want to put anyone off!
Morning Folks,
Perhaps it’s just me, but I am rather disappointed as a member of the project that this important information has been published here and not on the project web site first.
Steve
Sorry Steve – it’s going on the website ASAP – I wanted to preach to the unconverted as well!
Thanks for the kind words, folks. I’m far from the largest contributor of time and effort, but I was asked to do the write-up!
Re cars in the TFC car park – I apologize, and stand corrected!!
WE724..
Nice cars outside BECAUSE the wages are low. Only people who already have lots of spare cash can afford to work there.
Same thing with the wine trade, as my missus found out – classed as a ‘fun’ job, so paid as little as possible.. and also lets not forget that there isn’t a great deal of spare money available for salaries when there are old aeroplanes around to hoover it up..
It’s been a while..
Major progress… hopefully this pic shows the beginnings of the second (port) wing – front spar attached!
Profili – http://www.profili2.com/ – is perfect for playing with aerofoil profiles in a user-friendly kind of way. Plots are all very well, but you might wish to change thickness/chord, or even tweak leading / trailing edges, depending on what you are doing. I used Profilli for plotting the aerofoil that made up our loverly fabric Hurricane wings at Gransden. You’ll have to pay for the CAD format export for any 3D wing designs, but it is worth it. The database that comes with it – in the free version –contains a Clarke YH already.
If your software can import DXF files, you can alternatively get your Clarke YH from here: http://isoar.ca/~andrewm/rc/airfoils/13.html
Archer’s suggestion is the best source for raw plot data – only the link is http://www.ae.illinois.edu/m-selig/ads/coord_database.html#C
Clarke YH plots are here: http://www.ae.illinois.edu/m-selig/ads/coord/clarkyh.dat This dat file, if it won’t import directly into your package, can be modified in notepad to do so..
and gif here: http://www.ae.illinois.edu/m-selig/ads/afplots/clarkyh.gif
Beware.. if you happen to be doing a Hurricane, it’s a MODIFIED Clarke YH. I have the plots if you want them.
If you need any more tips, I’ve been there and hit a learning curve more akin to a climbing wall..
http://forum.keypublishing.com/showthread.php?t=97236&page=2 post 46 for a snapshot what can be achieved with Profili..
I find the in depth articles in contemporary journals like ‘Aircraft Production” and “Aircraft Engineering” fascinating, especially the ones that focus on a particular type, with just the right level of technical detail (for me personally) in descriptions of process, materials etc – coupled with lovely detailed photography. If this book could capture that then I personally would be in reader heaven!
Specifically Stu’s request will be for whichever AP1538 subset covered DH bracket-type controllable-pitch propellers as per Whirlwind. Time frame should be straightforward at late thirties to early forties.
Apologies – injudicious posting after birthday celebrations!
I wasn’t suggesting it didn’t happen, or that there is any conspiracy – more that without evidence I suspect the story and the implied state of preservation may have become embroidered a little by the ‘Spitfire in a crate’ tendency over the years.
On this subject I recommend ‘The Quick And The Dead’ by Bill Waterson, chief test pilot for Glosters during the period in question. A forgotten classic, with regard to the way it illuminates what was occuring at the leading edge of aeronautical development in the UK at the time from the point of view of a man who test flew Meteors, Javelins etc, but in this context especially relevant for Waterson’s views on rhe state of the industry at the time. IIRC he even was so bold as to head one chapter ‘Why Britain has Failed’.