Here`s some figures for a TBM I flew for a few years.In `ops` the aircraft could carry up to 800 USG with extra tanks on wings and in bomb-bay.So our operating weight with USG 333 would be about 12-13000lbsMax.wt was almost 18000 in `fighting trim.The engine is a Wright R-2600-20,1900 hp@46"MAP,only used on T/O.SUTTO would normally be about 20gals,and then cruising in Auto-lean ,1600 rpm/26"MAP about 45USG/Hr at about 135-140 kts....The same/similar engines were used in many other a/c,including many twins...Google will help...
