
I don't normally build WWI models and I have a customer wanting masks for a RFC DH-2 in 1/48 scale to correct a problem with the decals. So my questions are:
1. What sizes were RFC roundels, particularly the sizes of the red white and blue portions. If they were sized to suit particular aircraft please can you give me the sizes for the DH-2. The actual life size is the best then I can scale them to all scales

2. I would like to be able to help the customer with the correct shade of red and blue. I know that the blue is lighter than the WWII blue but is it lighter than, or the same as the Blue used post WWII? Is the red "Post office" red.
Thanks in advance