Thanks Rob, but I think I will stick to building models, writing books is not my fortè.
The radiators on the Voisin are quite large, there are two of them and they stand nearly upright behind the observer. I made these using 0.5mm plastic card, just a simple box section with straps around them, a shaped top was fitted, this was made from a piece of scrap plastic. The radiator core is made from lengths of 0.4mm brass tube, lots of them, these are held in place with CA. I have left the core natural brass colour.


These photos show the radiators just sitting roughly in position, the metal parts have been painted with Mr Metal Color Stainless and lightly buffed, I will leave the brass tubes as natural brass. Next job will be to manufacture an engine, no ordinary engine but a nine cylinder water cooled radial engine.
