Great triangular fuselage on the Nancu, lofted very similarly to the Me 262. As is the tail. The whole thing is an amalgam of good design ideas from the past 5 years – and of course, why shouldn’t it be? Another ‘epitome’ aeroplane from that second ‘golden era’ of pure design for flight before subsonic design stopped being of interest and area ruling, weapons platforming and the American ‘just add power’ ethos took over.
Yup, interesting.
That balance weight is fishy alright. Going on the metal covering I am now 95% certain it’s Albacore (which I have just discovered is a member of the Tuna family). Apart from claiming it was Hurricane, did the seller give any clue as to the origin?
Thanks! Nice and pragmatic that. ‘These are the tolerances.. unless you go beyond them, in which case THESE are the tolerances’. But I see the point too, you have to fair to one set or t’other.
You beat me to it 🙁
Yep, summed it up nicely. What we end up with is lost knowledge – those making the rules about who gets to know what and what archives get thrown away have no concept of what makes a blade right or wrong, or what is commercially sensitive to their operation and what is only used on one currently half-built eighty year old aeroplane. All they know is a) if people occasionally ask for it it must have value so they can’t have it or b) if no-one asks for it it gets burned.
The irony is that outside of modern military or commercial applications both performance and efficiency are becoming increasingly terrible, as no-one asks for the information any more and the ‘all props are the same, innit’ thing takes root*. When an organisation like Hercules props come along and apply the lost knowledge they sell shedloads as word gets around that ‘Jeff’s kit-built whizbang is faster and flies higher than mine, on less fuel, since he bought that prop.. who are those guys again’?… but this only applies to wooden props, at the moment.
In the modern spirit of openness, here’s the summary of what I have gleaned so far:
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Does your 130 explain what the “B” column refers to in the 6127 figures?
*I’d be interested to know what the performance comparison between the Mark 1 Spitfire with re-worked but still wrong T-28 prop blades and the other two with reverse-engineered 55409’s works out like.
I have 130B with the station tables (you shoulda asked!), but the 130 sounds very interesting, as it should include some earlier (and thus mostly extinct) ones. Still, the ‘families’ in 130B do indeed help a lot with making connections!
Did you spot from my spreadsheet that by doing the station shuffle (and calling in some maths, eg. realising that activity factor rate-of-change with cropping is a ‘fingerprint’ of blade shape) I have already identified the Ham Stand ‘master’ blades (6105/6353) from which almost all the DH bracket blades and many Hydromatic equivalents were derived, along with an idea of how they were tailored to applications and what the numbers mean? Also, 130B has a table for that blade – Incidentally demonstrating there was no design data implicit in HS drawing numbers.
One specific request, though.. does the 1947 vol have station data for the 6127? That’s the master for the DH 4,000 series.
You know that armed with this stuff, and knowing that twist was centred around sectional C of G, it’s possible to make accurate blades to order via CNC? I understand that Avia in CZ can make blanks sufficient to manufacture 6903’s (which are E-shank, ie 5,000 series, ie Spitfire/Hurricane/Battle/Whitley/Roc/Lysander/Lancaster/Hampden/Younameit), from their website (http://www.aviapropeller.cz/products.htm)? Nice and broad, the blanks should be sufficient to re-work to a 6105/6353, ie. lots of British props (will need checking – the main issue being the twist). They also make the 6547, a D-shank blade, which might just do for the 4,000 series as well.
However, there is the ‘handing’ question, and I am not sure about the licencing issues. We should get our heads together properly on this.
Similar tail, but sadly not the same – believe me, it was the first thing I looked at!
I am trying to find a decent image of a Barracuda tail. Definitely more metal on it, though of the two cutaways I have, one hides the horn balance and one appears distinctly ‘approximated’.
That something being a Swordfish?
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Though it might be more Barracuda – more metal on it..
Something like a Fairey IIIF, then? What was the rudder made of?
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Yeah, thought that through and edited at the same time as you posted.
Miles Master? Hmm.. doesn’t fit with the 45 degree thing, though.
Knowing whether the incident at West Hougham was a freakish smooth touchdown or an impact is quite important to untangling what happened.
The following explains the situation regarding recoveries in Kent during the Battle. It includes a mention of how bodies were dealt with – or not. I have left off some of the more unpleasant details that occur later on in the text, but the gist is direct identification of an individual by whatever might be visible to an intelligence officer might be near impossible. If, on the other hand, the record shows recovery of Hill’s aircraft from a tree (rather than wreckage from an impact) before the date of the funeral (even though it wasn’t struck off charge until afterwards) – then it’s straightforward enough, and just an exaggeration of timescale (which still seems an odd thing for Bartley to do, Tuck’s version notwithstanding).
From ‘Missing Believed Killed’ by Stuart Haddaway:
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Andy, what do you have on the recovery? The bit about it not being a civilian crew indicates there is some record that you have, outside of the casualty pack?
Here we go. Memoir of Reg Miles, 34 MU, October 1940:
I was posted to 34 Maintenance Unit Shrewsbury in Shropshire 5-10-1940, this unit was housed in sheds on the out-skirts of Shrewsbury and was responsible for the repair on site of crashed aircraft and the recovery of crashed aircraft that could not be flown away, this included both British, German, Italian, and later on American. The Flight Sergeant in charge of the crew of about six airmen was about sixty, was an optician in civvy street, had been a driver in the 1914-18 war so had no knowledge of aircraft, the rest of the gang were ex-garage workers only about one had any experience with spanners so it was finding out the hard way how ‘planes came to bits! We also had a driver for our Chevy truck and could call on “Queen Mary” low loaders and Coles cranes to lift things, but many times we were unable to get cranes or trucks to the site and it was sheer legs and muscle that were used.
It does seem there was a mix of civilian and RAF crews/gangs doing the recovery jobs on behalf of MU’s. Just no mixed crews, as I had for some reason imagined?
Excellent, thanks Andy.
One thing, it must have been a regional variation as 29 Gang of 67MU Taunton definitely had an RAF supplied vehicle in 1940 – I have the diary of Jim Wilson, the (civilian) gang leader, and he seems very proud of this vehicle!
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As I understand it the Crossley 3-tonner was essentially produced for the RAF? The two attached RAF personnel I may have imagined – that might have been attached to the depot, not the associated gang. I am still trying to find my references.
Of course it was pure speculation to connect Eyles and Hill. It was an attempt to reconcile two conflicting accounts. More about the nature of the incident at West Hougham would help – are you suggesting, from the above, that the aircraft ended up in a tree there, rather than impacted the field?