First, re comments on line drawings of unbuilt designs. When I first discovered this forum it had just had a run of unbuilt line drawings.... e.g Kurt Tanks I.Ae Condor. ......I assumed it was a "bit of fun" thread so did not go looking for the Rule Book.
Anyway I ll go with DETDPI's Miles identification although the info with this version says it was an earlier incarnation of the concept - Miles M.26 "X" Airliner - originally to have 4 RR engines, then 8 coupled Brabazon style. Likewise the original load was to be just 38 passengers but later expanded to 100. Source Miles Aircraft , Harleyford 1944. Although the X was a paper aeroplane Miles got as far as bulding a Gipsy Major powered twin - the M.30 X Minor in 1939 - the engine installation did not attempt to replicate the aerodynamic qualities of the full size concept. DETDPI has control.