You're right Matt. The tips are 'only just' over scale. In 'real life' the yellow was four inches deep from the tip of each blade, so even half a millimetre in 1/72nd or 1/48th scales is noticeable.
Good one. Everytime I see that plane, it looks like a Van Gogh painting. Like some bored mechanics found a bunch of parts lying around the factory floor and decided to build a "plane" for shits and giggles.