Category Archives: Painting and Finishing

Hawker Hurricane Camouflage and exterior / interior colors.


I’ve just completed a series of color profiles of Hurricanes and I’m going to explain them here, with links to click on to show the images. I can’t seem to imbed them in this page without making a literal copy, which seems like a bad idea. So here’s literal copy to show what kind of image we’re talking about, and then descriptions and links:

Hurri Mk I, A patt

Hawker Hurricane, 1939; port profile,”A” pattern camouflage; 2 speed de Havilland prop; black, white, aluminum under v.12

Here’s the first plane, chronologically by subject:

Hawker Hurricane Mk I, 1938, digital image, by me, "A" pattern camo, Watts prop, no strake, tube mast, alu. finish under.

There are four parallel histories here, one, of the exterior colors and camouflage the RAF and RN used on all their airplanes, from 1937 to 1946. Second, the evolution of Hurricanes as a new-build manufactured item from Hawkers, Gloster, etc., in the UK, and Canadian Car and Foundry in Canada. Third, the evolution of Hurricanes in service, as operated, maintained, and repaired in the RAF, RN and Empire Air Forces. Fourth, the colors and markings specific to Hurricanes in the RAF, RN and Empire.

RAF camouflage and exterior colors  evolved in this sequence:

  • Overall Aluminium
  • Dark Earth and Dark Green upper surfaces, Temperate Land Scheme; black propeller blades
  • Aluminium undersurfaces
  • Black and white undersurface identification marking
  • Black spinner, yellow propeller tips
  • Sky undersurfaces (Sky type ‘S’)
  • Black starboard wing underside returns, departs
  • Sky spinner and aft fuselage band
  • Black overall night fighters
    • Special Night, ultra-flat black
    • Smooth Night, matte black.
  • Dark Earth and Mid-Stone, over Azure Blue
  • Dark Green and Ocean Gray, over Medium Sea Gray
  • Dark Green and “Mixed Gray”, over Medium Sea Gray
  • Black undersides for night intruders
  • Dark Earth and Dark Green, over Medium Sea Gray

 

RN camouflage and exterior colors evolved in this sequence:

  • Overall Aluminium
  • Slate Gray and Extra-Dark Sea Gray upper surfaces, Temperate Sea Scheme; black propeller blades
  • Aluminium undersurfaces
  • Black and white undersurface identification marking
  • Black spinner, yellow propeller tips
  • Sky undersurfaces (Sky type ‘S’)
  • Black starboard wing underside returns, departs ?
  • Sky spinner and aft fuselage band
  • All white lower surfaces, gloss below, matte above

 

Hurricanes as manufactured: The original Hurricane production line followed Hawker’s usual practices of the mid 1930s, building up the fuselage truss and wing center section spars from tubing and rolled sheet metal. A family of joints between multiple tubes had been designed at Hawker, with tools to form the tubing into flat-sided, readily joined pieces, brackets to allow the formed pieces to be bolted together securely, and fittings to anchor the joints to internal tension wires. The fuselage girder was internally wire braced from the engine bearers to the rudder pivot.

The first 500 airplane’s wings were also fabric over metal frames and featured high strength sheet steel spars, rolled from single sheets into avertical web and top and bottom octagonal tubes, fore and aft. Ribs zig-zagged between the spars (/\/ww.\/\) forming a light, strong, stiff structure. The wide-track, retractable, landing gear was attached at the outside of the inner wing stubs. Ribs attached to the spars, front and back, to give an airfoil shape to the linen that was stretched over the whole structure and then doped.

Photographs clearly show the tube frames were painted a light color, almost certainly the familiar Aluminium lacquer or enamel, as were the interiors of wheel wells, spars, ribs, etc. The cockpit walls, outside the tube frame, were, in production, painted with the RAF’s standard, gray-green, fuel-proof, coating. (Lacquer? Enamel? something else?)

The heel-boards leading from under the seat to under the rudder pedals were unpainted aluminium or possibly painted Aluminium colour. Cockpit seats also appear to be unpainted aluminium, but Aluminium colour is again possible. There aren’t any contemporary color photographs and few Hurricanes led a sheltered life. Forensic sanding, as the Smithsonian did on the rudder counterweight of the Mustang “Excalibur” would be interesting. Presumably, this is what leads to the schemes used by Hurricane Restoration and other professionals.

While those were being built, Hawker designed an all-metal wing of monocoque construction. It was lighter, cheaper and easier to build than the traditional form, but required Hawker’s technology to evolve, while the original form poured off the production line and into RAF service.

It was painfully clear that centralized manufacture of anything in war-time was an invitation to disaster. Hurricane production, like everything else, was dispersed to many locations, each building as much value into their piece as possible, before having to send it to another workshop to integrate into the next step.

 

Other operators: Hurricanes in the Belgian, Dutch East-Indies, Royal Egyptian, Finnish, Imperial Iranian, Irish, Portuguese, Soviet, Turkish, and the Kingdom of Yugoslavia Air Forces started out in RAF/RN colors, and if they survived, further evolved locally. A single Hurricane shipped to Australia during the war, a single example shipped to Argentina after the war and three that were transferred to the Belgian AF after the war had similar histories. The RAF identified many of its own squadrons by the country of origin of most of their pilots, for example, Royal Australian, Royal Canadian, Czechoslovak in exile, Danish in exile, Free French, Royal Indian, Royal Hellenic. Royal New Zealand, Royal Norwegian, Polish, and South African. All operated within the RAF and their equipment was the same as near-by RAF units.

I do not attempt to describe what camouflage was carried by the 20 Hurricanes built by the Zmaj factory in Yugoslavia or the two built in Belgium. More than one Zmaj-built example fell into Italian hands, two Mk IIb Trop models fell into Japanese hands and a number of working or repairable examples came into German hands.

The RAF and RN standard, when Hurricane production began, was overall Aluminium (note spelling) dope, lacquer or enamel, depending on substrate. Fabric surfaces of Hurricanes were Irish linen, with a dark red dope applied to tighten it, then the Aluminium top coat. Aluminium dope is a excellent finish for fabric covered airplanes, because it blocks all Ultra-Violet light, which would otherwise bleach and degrade the underlying dope and fabric. A trained worker can get a satisfactory finish using standard tools and techniques.

Before the Munich Crisis, someone in the RAF realized it was time to hide the airplanes, and the familiar Dark Green and Dark Earth were applied. These were not repeats from WWI practice. There must be a history, but I don’t know it. They were collectively named “Temperate Land Scheme”. The Royal Navy soon had both a Temperate Sea Scheme, and a Tropical Sea Scheme. Eventually there was a Desert scheme for the RAF. All of these camouflage schemes applied only to the upper surface of the airplane. The underside finish was the previous, non-camouflage, standard, Aluminum, dope, lacquer or enamel.

Yes, these rabbit holes go very deep. See, for example,
http://www.britmodeller.com/forums/index.php?/topic/66903-raf-hurricanes-in-desert-camo/

The prototype Hurricane had its exterior metal panels polished, the very first production planes might have had Aluminium lacquer over gray primer. The green and brown finish became the factory standard, quickly, and the Maintenance Units would have updated any early production.

All this first set use the Temperate Land Scheme and the Desert scheme. (Capitalized? “S”cheme? There is no end to this stuff.)

Temperate Land colors are Dark Earth, a golden brown, much like a freshly plowed field in UK, and Dark Green, a nice, mature foliage color. On my first visit to the UK, looking out of the airplane window, I saw these same colors spread out in the countryside, and I realize this is precisely what this camouflage was intended to blend in to.

Here are relevant examples:

Captured Hawker Hurricane

Color photo of captured RAF Hawker Hurricane undergoing testing in German hands. Note Luftwaffe markings, worn appearance of finish.

Canadian Hurricane

Contemporary color photo of Canadian Hurricane in flight

Preserved Hurricane

British Science Museum’s Mk 1 Hawker Hurricane and Supermarine Spitfire. Hawker Siddley overhauled the Hurricane in 1963, the finish may not be original.

 

 

Contemporary WWII photo of Hurricane production, in Desert scheme

 

When Hurricanes went to Crete, Malta, Palestine, the Suez Canal Zone, and Egypt, they went wearing the standard green and brown. An Azure Blue for undersides to match the deep, dark, blue of a drier sky, appeared. A yellow-brown named “Mid Stone” replaced Dark Green and that was enough. Night bombers and intruders got black undersides, sometimes, but I’ve never seen evidence of all-black night flyers in the Mediterranean.

Undersides are a different kettle of fish. Originally left Aluminium, they were then intended to be painted half black and half white, divided down the middle of the underside. with the black on the left or port underside and the white on the right or starboard underside. This would make it very easy to recognize RAF airplanes compared to any others. The tersely worded official telegram instruction was open to more than one interpretation, however, resulting in airplanes with the wings painted white and black underneath, but the fuselage and tail left all Aluminium. In other cases, the black and white on the wings extended to the centerline under the fuselage, but the fuselage, fore and aft of the wings, remained Aluminium.

During the Battle of Britain, providing easy identification of British planes was reconsidered, and a new underside color, named Sky, was required, from sunrise on May, 1940. Also referred to as “duck egg blue”, Sky was a light, slightly greenish, blue. It had been worked out as the overall color for a notionally civilian Lockheed owned by a man named Cotton. As war became more and more likely, it became clear that accurate maps of Germany might be valuable and hard to get. Mr Cotton’s twin-engined Lockheed had a hidden camera installed, with a remote controlled cover that could open in flight,

Some experimentation revealed the light greenish blue concealed it best from ground observers. Thus painted, it ranged far and wide in European skies, in the fading years of peace, building a foundation for British aerial mapping throughout the war.

 

Additional reading:

https://en.wikipedia.org/wiki/List_of_Hawker_Hurricane_operators

“Duel of Eagles” – Peter Townsend

Camouflage & Markings: R.A.F. Fighter Command, Northern Europe, 1936-1945 
by James Goulding

http://www.britmodeller.com/forums/index.php?/topic/66903-raf-hurricanes-in-desert-camo/

Explore Hawker Hurricane and more!

 

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Dubshed 2012 – nice pictures!


A way, way cool photoblog. My favorite is the Golf 1 (aka Rabbit in USA) with the light blue and orance engine compartment.. looks like an air cleaner behind the head, and I don’t see any spark plug wires… diesel?  Wires and plugs on the back side with the intake and exhaust? Whatever. A very pretty job. Got the total “Euro” look going too – no bumper whatsoever. Mmm. Memory’s of my grandparent’s Karman Ghia – Anything that got past the bumper meant real bodywork with welding and painting…

Dubshed 2012.

Colors & materials for Apollo 11 CM, SM & LM. What the hardware looked like. For the Dragon kit.


Thanks to my beloved wife Jean, I got a Dragon Apollo 11 on the Moon kit, for Christmas! 1/72 scale, new tooling (same as their die-cast metal collectable?)

The short form on real, as-flown-in-1969, surfaces and finishes:

Command Module.

The actual Apollo Command module was covered with strips of mirror finish aluminized plastic micrometeoroid shield and thermal insulation, on the visible surfaces. The ablative heat shield, not visible until the CM and SM are separated, is said to have been painted a light gray color. During re-entry to Earth’s atmosphere, the mylar was mostly burned off and a light-gray painted structure under it became visible. Below that paint appears to have been a composite honeycomb material. I think it is unlikely that the actual pressure vessel that the crew lived in touched the outside surface except at the hatch edges.

In pictures of the remaining, unused, Apollo CSM (the emergency rescue vehicle for Skylab), you can see the stripe pattern of the plastic tape on the CM exterior, but in contemporary photographs, it looks like one piece of mirror polished aluminum. Like an American Airline’s jet airliner.

The fold-flat handles on the outside of the CSM, for astronaut Extra-Vehicular Activities (EVAs) were painted a glossy yellow, like the similar hand-rails on the the Hubble Space Telescope.

The docking capture and latch mechanism mounted on the outside of the tunnel, above the front hatch of the CM, is primarily titanium-looking metal, with a chromed, presumably retractable or spring loaded or damped, shaft.  There are darkened metal handles in the mechanism, probably painted or anodized a dark blue dark gray or black.

The inside of the tunnel itself, behind the docking capture mechanism, is light gray with 12 blue-anodized cylinder-topped arms at the top, some black and some other colors of boxes, and wires,

Service module:

The Service module exterior was  painted with an aluminum paint, except for radiator areas fore and aft which were white, two “ram’s horn” antennas that were white or light gray, and 24 narrow stripes (about 25%) on panels under the RCS thrusters. The area under “United States” may or may not have been light gray, and many labels on the exterior appear to be black text on light gray background.

The main engine exhaust bell is complex, but a bluish gray for the biggest, lower, part, outside, and reddish gray for the upper part, outside, is a good start. The top of the bell joins the reddish part at a flange, with bright bare metal fasteners by the dozen. The top of the bell, the last part visible beyond (below) the Inconel heat shield, is wrapped in the mylar and-or “H-film” ( aka “Kapton”) insulation and micrometeoroid shield. The back of the CM is mostly covered by 4 stamped quadrants what looks like thin Inconel nickel-copper high temp metal. The furthest outer edge of the end of the Service Module is painted with aluminum paint just like the sides.

Lunar Module:

The Lunar Module has two very different areas of finish: The descent (lower) stage is primarily wrapped in thermal insulation / micromedeoroid protection, a multilayer collection of  Kapton (“H film”) and Mylar, and other, exotic, things, with metal evaporated/ plated on them for protection. A lot of what looks ‘black’ is actually a black-finished foil or mylar.

The descent engine has a medium gray exterior and nestles in an Inconel-lined cavity in the descent stage.

The ascent (upper) stage of the Lunar Module is about half black-finished and half anodized Aluminum. Yes, the Aluminum looks like its dark, like Titanium, or has a distinct gray-beige-green tone. All true, many have remarked on the hard-to-describe colors. Grumman’s construction documents for the whole thing, facet by facet, are on line, and they specify Phosphoric acid and Sulfuric Acid anodizing of the various aluminum alloy pieces.  Some Mylar or “H film” wrapping is on the the outside of the ascent module. The ascent engine has a semi-gloss white exterior, with a textile-like “wrapped” texture. This may be thermal insulation, similar to the thick batts of insulation wrapped around the F1 engines of the Saturn V first stage.

There are two dish antennae on the ascent stage, Both have white-painted dishes and are generally black otherwise. The antenna directly above the lunar egress hatch and the front windows has black foil everywhere except the inside of the dish. The signal radiator in the center of the dish is white.

The antenna off on the starboard side of the ascent stage has a semi-gloss black mechanism and flat black on the back on the dish. Black, also, on the 4 legs and the forward reflector in front of the dish.

In more detail:

Command Module.

The Reaction Control System (RCS) engine nozzles on the CM have an oxidized copper color in their throats, and a slightly corrugated texture. Photos of post-re-entry CMs show a ring of the same oxidized copper color outside the nozzles, but the aluminized mylar covers these rings up to the edges of the RCS engine bells.

The forward and side windows for the two outside crew stations have black anti-glare finish around the windows, and red-orange silicone seals at every layer of the windows.

Below or behind the port side windows and the crossed RCS nozzles are a pair of drain valves, white 5/8 spheres with gold-toned dots at the outside. A very similar purge valve is installed on the starboard side of the side hatch.

On both sides, below windows, RCS nozzles, etc and the edge of the ablative re-entry shield, there are translucent white dots. Under the Mylar there are black partial circles around these two translucent circles,. On the Service Module, there are matching white partial circles painted on the fairing at the top edge of the SM

A minor (very minor) mystery is what kind of plastic the reflective stuff on the CM is. The expected temperature range in the space environment was wider than NASA was comfortable using Mylar, generally, uncovered, in the thermal insulation blankets covering the LM Descent Stage. Therefore, the outer layer of those blankets is always Kapton (“H film”), which is usable over the expected temperature range.  Of course, a blanket of up to 25 layers of plastic, using microthicknesses of vacuum deposited metal for insulation, is fundamentally different from a pressurized honeycomb structure wrapped with a layer of glued-on plastic tape. Maybe the thermal mass and inertia of the CM (and the slow-rolling passive thermal control regime) kept conditions on the outside of the CM suitable for Mylar, Maybe the CM plastic has the metal side “out”, unlike the majority of LM applications which are generally plastic side out (hence the gold-amber color: its not gold foil, its aluminized Kapton with the metal in and the plastic out.

Service module:

Inside the main engine exhaust bell is complex. At the bottom, inside the bluish gray outside, are 16 dark metal petals with strong textures. Inside the reddish-gray part of the bell are a set of 6 petals and then a solid ring- all a glossy dark color.  Above the dark, solid, ring, is a white metal ring, something like aluminum colored. Above that is an orangey brown and then at the peak of the engine is a light, metallic-finished plate with 5 stamped spokes and a central cap.

Lunar Module:

How I plan to reproduce these colors:

Command Module:

The glued-flat aluminized mylar on the real thing doesn’t look like any paint, even mirror polished aluminum. It looks like mylar, darker than polished aluminum. I have seen photos on-line of Apollo CMs finished in Bare Metal Foil, in the correct striped pattern. But I don’t see the stripes unless I look very closely in the 1960s photos- they’re easy to see in flash photos taken today, on the leftover CSM lifeboat for Skylab that never flew. But not in pictures of Apollo 11, or 15, or any of the other hardware that was flown.

Sooooo: Bare Metal Foil remains possible, or very thin aluminum foil, polished and clear-coated. “Chrome” spray paint would not be a bad choice. Having the kit part polished and then vacuum coated with aluminum would be very close to the real thing. Brush-painting Testor’s Chrome Silver oil-based paint or another similar non-water-based product is also a thought – the occasional brushmark could be said to represent the stripes of the Mylar…

“Chrome” spray paint or Metalizer Buffable Aluminum rattle can are the top two contenders at the moment. I’m going to do a study with each and see which I like more  watch this space.

Service Module:

Polly-scale Reefer White (that’s as in Refrigerator White, the rail-road color) is my call for the white paint on the lower and upper ring radiators, the two ‘tabs’ containing the ram’s horn antennas, and the white areas near the RCS boxes. My own mix for Boeing Aircraft Company #707 Gray is my first choice for the Light Gray RCS boxes, unless they’re white too, have to check again before I commit myself. The Inconel heat shield could be Polly Scale Stainless Steel, maybe with a bit of yellow added to bring out the nickel ‘color’… Inconel is a copper-nickel alloy and its attraction is that it holds its strength at high temperatures, not that its intrinsically tough stuff like titanium. It actually cuts and polishes pretty readily, but the important thing is that its clearly NOT aluminum. Completely different color. Not unlike stainless steel, which is, itself, not like steel OR aluminum.

Lunar Module:

One of my info posts was read in translation!


Someone looked at my “how to build a plastic model” info, translated into Slovenian. A little international flare there. Pretty cool!
Here’s what they clicked, you can see for yourself:
translate.google.sk/translate_p?langpair=en%7Csk&u=http%3A%2F%2Fbillabbott.wordpress.com%2F2009%2F12%2F24%2Fbuilding-plastic-models-how-to-tools-to-use%2F&usg=ALkJrhiJwzdWCKxaP7295DPBIebhlYgcxA 1

Well, I DO think its pretty cool and yes, I ought to be working on more career-work-related stuff. Next.

Bill

What the People want:


So, for example, here’s what brought people to my blog yesterday:
More editing tomorrow.

— Information pointed to from here:
mosquito bomb aimers position 23
boeing 707 gray 2
hobby store bay area 2
dh mosquito

— Information here for airplanes and other subjects for modelling:
mosquito bomb aimers position 23

— Information here for paint and finishing:
boeing 707 gray 2
how to sand down excess plastic modeling 2
how to thin model master acryl paint 2
remove decals to model aircraft 1
tamiya paint sets 1spraying with water based paint 1
water based paint diluters

— Information here about Bay Area hobby shops
hobby store bay area 2
san francisco rc plane shop 1

“wwii” and “model kit” and “kids” 2
“air international” magazine index 1

dh mosquito cockpit door 1
grumman f7f tigercat/cabin view 1
1
radio shack electric motor rf-500tb-182 1
thinning water based paint for spraying 1
tamiya acrylic remover 1
dh mosquito 1
model paint stripping 1
and dilute acrylic paints for models 1-20 y 1
boac mosquito 1
removing future floor wax 1

I— nformation *not yet*here
italeri c 27 1/72 2
spray paint for pots and pans 1
système de trim wheel en cockpit 1
misquito twin engine bomber three view 1
revell constellation lufthansa blue tamiya colours 1
cockpit/grumman tigercat/images 2

Project status Italeri 1/72 F-104G/S Starfighter


Italeri F104 G ‘S’Here’s the latest- I took this and the Revell TF 104G on vacation with me. I’d made a drawing that cartooned the instrument panel, based on the Verlinden Lock On book primarily. With that sketch in hand, I painted both kit’s cockpits and fiddly bits, and started gluing, I’ve got this 104’s major fuselage assembled, with cockpit and intakes. Needs wings, aft fuselage attached, so forth. Paint too. Here’s the latest photo of it: Italeri F-104G/S its not actually an S, just a G, no Sparrow or Aspide missile, though there is a pylon for it at least. Interior parts cruder than Revell/Monogram/Revell Germany kit, I’ve painted in parallel. Going to build it as an S and to heck with getting the aft fuselage and intake trunk bulky-ness correct. With an AIM-7-ish missile on the pylon and pretty Italian markings it will look great. Big issue is getting something like but not TOO like British Ocean Gray/Mixed Gray and Dark Green for topside- each nation in NATO has its own paint scheme and the fact that they often resemble the Dark Green, Ocean Gray/Medium Sea Gray Day Fighter scheme from WWII European theater doesn’t mean that exact color matches are in stock.

Project status Minicraft 1/144 American Airlines MD-82 (?)


Wow, thanks for the vote based on not much!
here’s the state of play- needs antennae, bits and pieces markings:

Minicraft 1/144 MD-80, F-104J/G, Spitfire

Minicraft American Airlines MD-82
Minicraft 1/144 American Airlines McDonnell-Douglas MD-80
I’ve got a pile of home-made detail decals to put on the AA MD-82, and it needs antennae and lights