Thanks again to all of you for your compliments. Pushers really are not so difficult once a couple of problems have been solved, although each one has its own tricky part to get around - in this case it was the stagger of the struts, but in the end it was not nearly as difficult as I had imagined.
It's a surprisingly big beast isn't it?
The span of the model is approximately 8.5 inches (21 cm), compared with the FE 2 which is 7.75 inches (19.5 cm): it is why two sets of wings from other models have to be used because there are no kits available with wings of comparable span and chord. The Sopwith Gunbus will be the largest pusher model I will have made when it is finished - it will dwarf the FE 8! (5.25 inches - 17cm).