October, 2019 issue of Aeroplane Monthly has an interesting article on one used by Vickers for guided weapons development. I've got an Airfix 1/72 B-29, a B-50 conversion kit, and a Tu-4 Armament set, along with appropriate decals to model a RAAF Washington B.II (B-44B) with dual 30mm ADEN cannon replacing the quad .50-caliber machine guns in the turrets.