Graham…As it’s the transport use that interests me I’ll take your advice and plod through the Air-Britain Lockheed twins book for Squadron use…the total number of Boulton Paul turrets produced would be interesting though.
I don’t think the Red Cross operated any aircraft in WWII? There were examples of combatants ambulance aircraft wearing the red cross on white surround in addition to the regular markings e.g. in the Western Desert 1942
https://artsandculture.google.com/asset/war-in-the-western-desert/5QGcF4_BDj6VyA
https://artsandculture.google.com/asset/war-in-the-western-desert/7AGFWlDOAw1Dv
A book on industrialist Leonard Lord ‘Brick by Brick’ contains some material which suggests that Boulton Paul were struggling to produce enough turrets for several types ( Lockheed had also managed to ramp up Hudson production more than was expected) https://books.google.co.uk/books?id=uBlRDbM5Xd4C&pg=PA108&dq=lockheed+hudson+turrets&hl=en&sa=X&ved=0ahUKEwjN_O7Q7bjcAhWDZlAKHRk_CCk4ChDoAQgsMAE#v=onepage&q=lockheed%20hudson%20turrets&f=false
Wreckage of Yankee Clipper being salvaged in Lisbon
http://3.bp.blogspot.com/-RcOccdZtl2U/UR_NMe-aRoI/AAAAAAAAKm0/t8Dzg9JvQMY/s1600/11-05-047.jpg
http://3.bp.blogspot.com/-cvPaq4b8sfM/UR_NOPmZgqI/AAAAAAAAKm8/4mBj-F7vSDU/s1600/11-05-048.jpg
http://4.bp.blogspot.com/-STVSzGeXytE/UR_NRrgyXDI/AAAAAAAAKnE/-AHfWqznM_s/s1600/11-05-049.jpg
The demolition of Heathrow and Heston’s ‘neighbour’, the Southall Gasholder has been planned for some time ( http://southallwatersidecommunity.com/about/ ) but I can’t find much on the net about it. Northolt’s Gas-holder went some years ago ,I believe.
Ian…I suppose the date of the beginning of the Berlin Airlift is a bit difficult to pin down as it took a long time to crank up (the RAF had run a mini-airlift before all the C-54s started arriving)…maybe the peak effort around Easter 1949 will be celebrated more. I’ve got ‘Bridge in the Sky’ by Frank Donovan, plenty of detail, General Tunnell ex- C.B.I Hump Airlift was the genius who applied industrial planning to up the efficiency of the Berlin Airlift.
I’ve got a specific question about the C-54s on the Lift…they were put through an overhaul every 200 hours, initially in Germany but as the Airlift progressed at Burtonwood in the UK . A heavier overhaul every 1000 flying hours was done at bases back in the U.S. and by civilian contractors like Transocean. My question is was the overhaul at 1000 hours done every 800 hours in 1944/1945 and the interval increased with experience?
Put Heathrow in the search box on http://www.megalithic.co.uk/search.php for an account of the archaeological dig just before T5 was built…settlements not stone circle though
I got my bearings now…it’s looking NNW over the Western end of the Colnbrook bypass (and the aircraft is roughly following the GWR Staines-Uxbridge branch-line northwards i.e close to T5 now). Langley airfield is hidden behind the aircraft’s engine. The building cluster by the engine is the Brands Hill Hostel (what was that for?). The road off to bottom left is the windy road from Colnbrook to Horton and Wraysbury. The original western end of Heathrow’s runway 10L (now 09L) is ‘off-piste’ about 1-1.5 miles from the bottom right of the photo, zoom in on http://maps.nls.uk/geo/explore/side-by-side/#zoom=14&lat=51.4962&lon=-0.5277&layers=11&right=12
What’s the source of the photo? It’s flat and there’s a gravel pit or watermeadow on the right, but I don’t recognize the buildings
George , Its in Wingspan #48 Oct1988 http://www.aeroflight.co.uk/mags/contents/planes-contents-listing.htm
And the Air Britain secondhand magazine shop/archive appear to have recently got it
https://www.air-britain.com/pdfs/AB_Aeromart.pdf
Assuming that GILCOL is talking about WWII aircraft wreckage found in Europe 7075 type material is unlikely to be found and 2024 most likely for structural parts. 7075 was used to re-engineer the B-29 wing for the B-50 saving hundreds of pounds weight and I think it was used on later Super Constellation wings. Hadn’t realised it was involved in the Comet story. 2024 and 2014 do differ in composition
The American designations for aluminium alloys now seem dominant so this chart offering British equivalents might be useful. 2024 was the commonest aluminium/copper alloy from the time of the DC-3…higher strength 7075 (aluminium/zinc alloy) was introduced from the end of WWII (e.g used to re-engineer the B-29 wing for the B-50) (Al/Zn alloys invented in Japan, I learn)
https://www.aircraftmaterials.com/data/aluminium/alalu.html
and https://en.wikipedia.org/wiki/Aluminium_alloy explains what the various 1000, 2000, 3000 etc series mean, with applications
1941 Athens and Thessalonika photos #6,7,8,10,11,12,13 (from an album?) here https://www.ebay.co.uk/sch/i.html?_nkw=1941&_in_kw=1&_ex_kw=&_sacat=0&LH_Complete=1&_udlo=&_udhi=&_samilow=&_samihi=&_sadis=15&_stpos=&_sargn=-1%26saslc%3D1&_salic=3&_fss=1&_fsradio=%26LH_SpecificSeller%3D1&_saslop=1&_sasl=skorzeny123&_sop=10&_dmd=1&_ipg=200%C2%A0&clk_rvr_id=1577223284620&rmvSB=true
Thanks…. Junkers G.24 looks right, the pre-war Greek airline had some…I was wrongly thinking they were single engined http://www.aviationphotocompany.com/p566709582/h42983B05#h42983b05
Colour selection is something of a minefield but there are pre-war BS charts online e.g. http://www.clubhyper.com/reference/bsc1931wm_1.htm. I would say that the German source photo is taken on panchromatic film, you have the Greek national (light?) blue bands as a starting point, perhaps ‘Eau de Nil’ for the light green? Are you making a model?