Back again tyga's. Great to see this thread keep going. Have a project on the table at the moment, Electric Scale 747SP. Going to try and use the micro ducted fan jets from GWS with 3 channels but have worked out that the airframe weight of the model has to be limited to 300 grams!!! (Without engines, batteries, gear etc) Thinking of building it out of foam. Anyone have any ideas? Also wondered if anyone has had much to do with the micro light scene in regard to battery weights and running electric engines in series/ parallel etc.