Ok i plan on converting a Sig Lt-40 to electric it should weigh in at about 6lbs 10 oz ready to fly I will be useing an e-bay 600 wat motor and tower pro 60 amp esc the batteries I pln on useing are Maxxamps 2s2p 3000 ma batteries 2 in series should be 14.8 volts any Ideas with what prop to start with and how long of flight time I shold get? Any one with a realistic suggestion on watts per pound ratio I see some places saying 50 is enough for trainners will others are saying 100 for the same plane Thanks for any help