1:32 wet transfers for model aircraft play to the strength of the big scale, where lettering is large enough that the carrier film of a normal decal catches the eye at once. Peel the film and only the ink remains, whether that is P-47 insignia, Bf 109E markings or a full stencil sheet. Application is with water over a gloss base, exactly like a decal.
Always buy transfers in the scale of the kit, which here means 1:32 aircraft model kits. The step-by-step method, and the difference from ordinary decals, is covered in wet transfers for model aircraft. Protect the hood while spraying the gloss base with 1:32 canopy masks.