Looking at the sprue shots this looks like the old 1950's moulding except it seems Airfix have up-dated the crew figures as your have legs. My one I built recently ( See Building a couple of old dogs posting.) mine were legless even though it was a much later re-issue. Those large location holes are a real boon as you have plenty of glueing area and the joint can be quite strong. woundered how you managed to set all those struts at the correct angle? I only set two each side then added the others after the top wing was in place.
Anyway it seems you're on a WW1 kick at the moment, and it's great to see some of those early aircraft, just wish Airfix would issue more. Love to see a new tooling of the Hawker Hart / Fury / Demon family. Looking forwards to seeing the completed model.
Remember we do this for fun John the Pom