Summary

After buying a couple of extra squadrons and a load of bombers, I decided to try and make a set of storage trays for putting in the existing Blood Red Skies box. Haven't printed it yet so it may need to be scaled down a little to fit in the box as together it makes a 250x250mm layer.
Two fighter boxes with German and British markings. Bomber and Ace layer trays are universal.

Update:
The new Junkers BRS bombers have wider tails than the Blenholms, so the Bomber Tray probably wont hold those.

Update:
Just added USAF, Soviet, Imperial and a Basic Fighter tray to the STL's for those wishing to use some of the "newer" factions.

Disclaimer: I don't own any of these factions so cant be 100% certain that their fighters will fit. If these need tweaks or don't work let me know and I will tweak or remove them. Same goes for the Bombers.