Hi,
this is a quick summary of published Methuen values for British PC10 and similar finishes. They are gleaned from various articles by Ian Huntley, Ian Baker (also using Huntley and Rimell) and Ray Rimell. It is not comprehensive and I'm making no comments about the validity or not of these matches - I'm merely passing them on. I have added scans of the three Methuen hues, 3-5, that cover most of the colours, but this is only for comparative purposes as they do not scan well. Essentially, hue 3 is a yellow-olive range, moving through to hue 5 that is a brown olive. They can look very similar and can be difficult to match at the darker end of the scale. Most of the PC10 values fall in hue 4, moving towards 5 in later examples. The PC12 value is a genuine match by Ray Rimell, whereas the 'PC12' refer to the reddish primer/tropical coating. Some early Dyed Varnish values are included that are going to be useful for early BE2s and Avro 504s -assuming they are going to appear from WNW - yes please!) plus the proprietary khakis used on RNAS aircraft - tending more greenish, hue 3, than the RFC PC10 range.
The rgb values are derived from Resene colour cards carefully matched to the Methuen chips but there is some room for error here and some might need adjusting. I have copies of the table with RGB chips attached if anyone wants one - send PM). There was an extensive thread on the Aerodrome that covered these and many German colours.
I'll offer some model paint matches and other comments about similar German colours that belong in the Methuen 3-5 range later. Others might like to contribute their opinions so that we could build up a decent resource - WNW offer Tamiya, Humbrol and Misterkit matches for instance. The inclusion of the basic yellow hues will also allow keen types to make their own brews by adding black or neutral greys, or adding spots of yellow to same (for the unsaturated colours).
When reading the Methuen values in the table some prefixes may indicate 3-4 or 4-5 - this implies that the hue falls somewhere between the two. Similarly for saturation intensity values (number suffix) and tone (letter). Values F-G or G imply a darker colour than those offered on the Methuen page (an imaginary column G on the right).
Please note that presentation on screen may differ from the original since file conversion protocols seem to change hues.
I hope this is of some help.
Cheers,
Graham

