skater i am using 4 motors on my solent with gear boxes swinging 9x6 four bladed props battery will be 2- 3cell 2600 packs tied together and only one esc. two batterys for weight in the nose. Glad you tried the balsa site i gave you they are good to me. Good luck with your build ,post a build thred so we can watch while i am trying to get glue off my fingers lol . I have been busy flying my other sea planes at some water fun flys ,so havent been keeping track of any thing. Ps it is not a thing ,lol it is a 1935 short solent 60 passender sea plane . lmao joe