justplanecrazy Posted September 13, 2019 Share Posted September 13, 2019 just wondering what the yellow circles were for on the armored bulkheads of Lancasters and Mossies Link to comment Share on other sites More sharing options...
LSP_Ron Posted September 13, 2019 Share Posted September 13, 2019 It was a gas detection panel that was also seen on many British aircraft wings as a 12" x 12" square panel on the left wing up until around late1940 Out2gtcha and LSP_K2 2 Link to comment Share on other sites More sharing options...
mozart Posted September 13, 2019 Share Posted September 13, 2019 Nope, ‘fraid not Ron. This is a thorny old question that has been discussed so many times over the years and never authoritatively answered, and it seems nobody can find some type of documentation which explains it. The most credible explanation is that it signifies armour plate which could cause deflection or inaccurate compass readings. Yes, I’ve seen Stirlings and of course one of the BBMF Spitfires sporting a yellow/diamond gas detection paint symbol when in the early war years gas was considered a potential weapon, but in 44/45 in Lancaster/Mosquito cockpits?? monthebiff, Shawn M and MikeC 3 Link to comment Share on other sites More sharing options...
monthebiff Posted September 13, 2019 Share Posted September 13, 2019 Good point Max, never really thought to much about this before but there is a clear difference isn't t there, very interesting though. Regards. Andy Link to comment Share on other sites More sharing options...
justplanecrazy Posted September 15, 2019 Author Share Posted September 15, 2019 Thanks guys for your input. As usual a modeller with one reference is sure, and with two is confused. LOL Link to comment Share on other sites More sharing options...
LSP_Ron Posted September 15, 2019 Share Posted September 15, 2019 I did not know that Max, I was always under the impression it was for gas What about the wing patch on early RAF planes? Link to comment Share on other sites More sharing options...
nmayhew Posted September 16, 2019 Share Posted September 16, 2019 8 hours ago, LSP_Ron said: I did not know that Max, I was always under the impression it was for gas What about the wing patch on early RAF planes? yes the bright yellow square you sometimes see on early Spitfires was a patch (rather than paint) which was painted with / soaked in (I am not sure) a substance which would change colour if it came into contact with poison gas thankfully - but also strangely - the Germans never used any Out2gtcha and mozart 1 1 Link to comment Share on other sites More sharing options...
mozart Posted September 17, 2019 Share Posted September 17, 2019 On 9/16/2019 at 8:41 AM, LSP_Ron said: I did not know that Max, I was always under the impression it was for gas What about the wing patch on early RAF planes? What Nick says! Link to comment Share on other sites More sharing options...
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