Bill Kerman Brother

is this updated for ksp 1.4?

im sorry i belive i didnt intall the firespitter correctly also can you please step me through to downloading because im an iddiot with downloading these outstanding mods

Hello I would like to say this mod is perfect for aviation and I have bumped into 2 problems i've tried my best to find a solution for. 1. I'm having an audio issue with the propellers and if there's an answer iv'e not found i'm sincerely sorry. 2. Another issue i'm having is the fact that the parts are not shown in the game Please @blackheart612 notify me of any solution possible and thank you for taking the time to read my post. P.S i just made this account to get help