Wish I knew more about this – however, as a general observation, we should not be surprised at the production levels achieved in wartime without ‘automation’. Engineering in the UK was much less of a ‘cottage industry’ then than it is now.
We need to define ‘automation’. Robots, for example, do not replace ‘skilled’ labour, they replace people trained to repeat the same action over and again with an acceptable degree of accuracy. There were sufficient numbers of these in the UK to maintain the industry on a war footing.
I strongly suspect that there was far more skilled engineering labour (not to mention plant) available to cope with things like retooling then than there is now. All that was really needed was extra ‘human resource’, the way that Nissan would just buy double the robots now if they wanted to double production. This was achieved by mobilising the female workforce. OK, more floorspace, jigs and machinery were needed too..
However, if automation refers to the US production line ‘conveyor belt’ approach (not so much ‘automation’ as rationalisation) then there was no comparison with UK practice.
In danger of becoming political if I go any further!
That’s a rather good idea. I’ll be wearing my Whirlwind project T-shirt – I suggest everyone buys one! :dev2:
PS. I don’t suppose you have access to the drawings, do you?
Thank you so much, Anne! That really does help.
Just to be clear, then, blade DP54409 is specific to the 4/4 (uniquely Peregrine), and is not the ‘fatter outboard’ Mercury type?
I’ll be checking the DH archive for drawings. It won’t be a matter of finding (nonexistant) bits as far as the blades are concerned – we’re going to have to make new ones, methinks.
Thanks chaps for the heads up on Farnborough – I have spoken with them and I am looking to visit in July on behalf of the group.
ThreeSpool, are you still having problems? PM me your email and choice of password, and I’ll create an account for you.
Matt Bearman
Whirlwind Fighter Project Site Admin
Hi Matt – Thanks for your offer of help with my registration on the ‘Whirly’ site.
I’m still having problems – the end process where two words are supposed to be visible for me to type in are just not there! as a result the registration fails each time. I’ve just sent you a ‘pm’ with my e-mail address and password preference so you can register me. Would be interested to hear from anyone else suffering problems with registration.
Again – thanks for your time.Cheers
‘Dick’
OK, that’s done – the site should have sent you a confirmation….
More on those props.
These variable-pitch ‘DH’ props were, of course, Hamilton Standard designs under licence. So if anyone can source any of the following prop blades we’d be very happy!
Ideally 6101A -0 to 6101A -3 – please see http://dbdesignbureau.buckmasterfamily.id.au/cac_wirraway.htm
If not, any of the following Hamilton Standard types:
6129
6131
6247
6379
6179
6447
As for existing types, quite amazingly a trawl of the FAA shows only 2 aircraft even certified with 10ft props – the OV10-A (wrong shape blades, sadly) and the Grob Egrett with a four-blader.
Historically, the closest matches I can find are the HS 10′ prop on the Buffalo and (debatably) on the CAC Wirraway. Again, if anyone knows any other types that had 10 foot Hamilton or DH 3-bladers, please let us know!
Essentially, something that looks like this and which gives a 10 foot diameter when mounted on a 3E40 / 3D40 hub or similar:
Edit: Even better would be 3155-6 blades on a 3d40 hub – see second image:
Hi Mike
I’m having problems registering for membership of your Project on both your original web address and your current one!! I fill in the required details but when it comes to the final line – asking me to “type in the two words you see below” – there are no words visible !! My registration attempts fail each time. Any idea what the problem is?By the way – I’ve replied to your PM re Ray (‘Shedman’) some while ago and haven’t heard back from you – did you get the message?
Cheers
‘D1ck’
Hi, I’m an admin on the Whirly site. If you’re still having problems, PM me with your email and choice of password and I’ll register for you.
Cheers,
Matt
The latter.
..needs American intervension to help make it the awesome racer it has become. I’d reckon a clipped winged Mk14 might just be able to keep up with the Merlin powered ’51’s but would never be a winning machine :diablo:
Surely, America needed British intervention to make the 51 a ‘winning machine’. How many Allison-powered Mustang racers are there? :diablo:
Seems ok – has anyone else had problems?
Sadly no closer, despite the great pics Inkworm gave me the heads-up on in this month’s ‘other’ magazine. They all show the ‘flat’ type, not a surprise considering the date.
I have come to realise that there was an intermediate ’rounded’ type, sometimes armoured, sometimes not (but without the additional frame component familiar on Battle of Britain aircraft) that both appeared and disappeared in the first half of 1940, but I cannot find any documentation on (or even record of) its existence anywhere, apart from one GA drawing and a few blurry battle of France period photographs.
Another example is below, with the more familiar early screen as an inset for comparison.
Help
Lancaster indeed – there were also many to be found scattered around the dispersals at Aston Down in the 80’s – no reason to believe that isn’t still the case! One farmer had a big pile of ‘aeroplane junk’ in a shed, ploughed up and removed from his fields. He gave the 13 year old me one of these stubs as the only part small enough to carry back on my bike! Wonder what happened to it all?
Yes, get well soon, Stu!