Boje

Vulkanizer · Upisano: Uto Lip 23, 2009 3:06 pm Naslov poruke: Boje

Sigurno se o ovome pisalo al ja ne mogu naći .Neznam koje je boje šaht stajnog trapa n P 51D. Sastavnica mi daje al,a na netu sam našo sve moguće kombinacije. Najćešće zelena,s time da su poklopci kotaća zeleni ili al. Avion je s kraja ww II stacijoniran u Evropi.
Hvala
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Tasma · Upisano: Uto Lip 23, 2009 4:16 pm Naslov poruke:

Bok!
U pitanju je mm 1734 Zinc chromate green, neka me kolege isprave ako griješim, ali vjerujem da je to upravo ta boja.

Bornjifiko · Upisano: Uto Lip 23, 2009 8:21 pm Naslov poruke:

Pozdrav!

Navod:
''Similarly to other aircraft types, the camouflaged P-51 most probably had wheel wells painted in Neutral Grey. On later-production natural metal aircraft, the wheel wells were Interior Green. Additional piping and wiring inside the wheel well area was painted in Aluminium lacquer.''

Reci treba li ti ovo prevoditi ili ne.
Naravno, sve reference treba provjeravati dva-tri puta, no reference iz koje je navod i citiran, slove za jedne od najpouzdanijih...

Siguran sam da će biti još različitih mišljenja sa strane drugih kolega...
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...Aint' got time to fiddle. I gotta polish duralumin plates on my goat...

Vulkanizer · Upisano: Uto Lip 23, 2009 8:53 pm Naslov poruke:

Hvala vam .
Znaći dvojba je bila opravdana,ipak je zelena,a ovo sa cijevima i žicama možda objašnjava zašto neke slike zbunjuju .
Pozdrav !
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Darth Maul · Upisano: Sri Lip 24, 2009 11:31 pm Naslov poruke:

Khm... zapravo je žuta odnosno Yellow Zinc Chromate.

Naime, North American je u cilju ubrzavanja proizvodnje dobio dozvolu da ne koristi temeljne boje na unutrasnjosti P-51.

Jedino je zamenjaca krila (zadnji zid otvora kotaca) dobio jedan sloj Yellow Zinc Chromate, ostalo je neobojeni aluminij.

Tijekom proizvodnje P-51B/C uoceni su problemi s korozijom na terenu zbog raznih vrsta al. legura.

Tijekom proizvodnje P-51D preslo se na bojanje cjelih lezista kotaca na Yellow Zinc Chromate.

Green Zinc Chromate oznacava da je temeljna boja nanesena 2 puta (prvo zuti, onda zeleni), i sumnjam da se koristila na terenu.

Evo malo izvornika:

Dana Bell
Anticorrosive colors and P-51s...
Tue Aug 27 10:19:29 2002
209.244.225.103

There are really three phases of wartime painting of Mustang wheel wells - all related to corrosion control. At first, the metal surfaces were to be painted with one coat of zinc chromate (yellow), one coat of tinted zinc chromate (green), and one coat of aluminized lacquer. This finish appears to have been limited to Allison-engined Mustangs.
Two things happened in 1942. First, a shortage of aluminum ended the use of the aluminized lacquer and forced the reformulation of green zinc chromate. (This led to the use of other colors for wheel wells and struts - for example the Neutral Gray on Lightings and Bronze Green on some P-39s and B-29s.) Second, the AAF allowed North American to produce AT-6s, B-25s, and P-51s without primers to ease production. (Boeing got similar permission for its B-17s.) This is what led to the unpainted wheel well noted below. Throughout this period, the wing spar appears to have consistently carried zinc chromate (yellow) primer. (The primer reduced corrosion where the spar contacted the aluminum sheet and reduced the buildup of static electricity - an important issue with the fuel tanks mounted just aft of the spar.) This combination, as noted below, was common on Bs and Cs, and most Ds and Ks.
By 1944, the AAF was receiving complaints about corrosion in a number of aircraft, including the Mustang. Some unspecified action was required, particularly to reduce dissimilar metal corrosion between structural members and skin panels. Some manufacturers gave the structure a coat of yellow zinc chromate before adding the skin. Some left the structure unprimed and gave the inner surface of the skin a coat of yellow zinc chromate. It's not clear how North American handled the problem, but there is one undated color shot of a P-51D (or K) production line showing the entire wheel well primed in yellow.
This is just a general explanation - it won't help you know what color the wheel wells would be on any particular aircraft. But you can make your own informed decisions based on the date you suspect any particular aircraft (and not just a Mustang) was manufactured.
Cheers,
-Dana
Dana Bell
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Ja - Mario

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