I am building a V-Tail and have almost everything decided/purchased except the motors/props/esc. The weight minus the Naze32 flight controller and OSD module is 430 grams and the average weight of my 2200mah 4S batteries is 250 grams. The booms are currently 11.5 inches long and will be shortened once my prop size choice has been made. The motors ar 56 grams each (224 grams total) and esc are 32 grams each (128 grams total). With the flight controller, OSD, and wiring, I will estimate the total weight of my V-Tail to be 1200 grams.
What my problem is, is that I am powering my V-Tail with a 4S battery and I don't know how to find amps/thrust/best prop size. If I were able, I would use the lighter 3S, but I already own 5 of the 4S.
Unless someone changes my mind, I am going to use the SunnySky X2212 motor in either 980kv or 1400kv. I have copied the motor specs below. I am currently using the 980kv motors on my Titan Tricopter and I built a very light simplecopter tricopter for a friend and used the 1400kv motors (3S) on his. Both fly well but his is definitely snappier.
My V-Tail is going to be an FPV platform and I would like it to be quick, agile, and have good battery life. The charts do not include stats for 4S, so the best I can do is estimate. I know that the 980kv on 4S with 9x5 props work well. The motors don't even warso up. Battery life is about 8-10 minutes.
Does anyone have experience they can share. I am looking for recommendations choosing motors, props, and boom lengths for an approximately 1200 gram V-Tail. Thank you.