Thanks Gino. I saw those pics whilst searching Google. I am considering doing a 1/48th Air America short body Huey using the Revell Hog kit, but I'm in two minds about it as the kit is so poor (I might use the Hobby Boss one but it's not as cheap to buy). Hmm.
From the looks of it, from the paint conversion chart I have (www.paint4models.com/.../paintconversionchart20100101e.htm) Insignia Blue is FS35044 and Testors do it as Model Master Acryl #4742.
Next silly question - were they gloss or matt overall, I'm guessing the blue would have been one or the other but what about the rest, presumably bare metal?