Hi Hesham,
Here-after some informations from "Aviation Magazine" (Jean Liron, date ?) and "Flugsport" (March 1925) concerning the De Monge Twin-boom aircraft and projects with a main specifications table and two photos (bad, sorry, copy of copies).
Translation of the table:
Type / Engine / Power / Span / Lenght / Height / Wing Area / Empty weight / Total weight / Max speed / Autonomy / Use / Crew + pax / MFG year / Registration / Number produced / Remarks:
Type 7-2: Not finished. "Grand raid" version autonomy: 7000km
Type 7-3: Scale model 1/3 of Type 7-2
Type 7-4: Scale model 1/3 of Type 150
Type 7-5: 2nd scale model 1/3 of Type 150
De Monge also designed a twin boom experimental glider which was engaged at the "Sailplane Offical Meeting of Combegrasse", France, in August 1922, piloted by Casale.