So in most cases you might know how to get into your saves right? Well for the ones that don't know how, this section well tell you how to get in you saves.
pres 'Windows home button' + 'R'
Then, type in %appdata% and press 'Enter'
Open the folder Roaming
In this folder you should find the endless-sky folder
Then press Saves
Then select a pilots save file and open it
Hit "CTRL"+"F" to find the word outfits,take good care its your ship your editing
Enter in a Name of the Outfit you want in the section
Now, close the file, and dont forgot to press the SAVE button!
and go back into endless sky and reload the save you edited

The items you see in the Eg is what you screen should look like if you use notepad
P.S This all my Stuff for my ship

Place the Name of the outfit on the line marked by the arrow
Note Some thing like HyperDrives dont need " "

EG...

outfits
JumpDrive <------ Added item
Hyperdrive <------ Delete this so you dont have both it and the Jumpdrive
"Ion Cannon" 4
"Chameleon Anti-Missile" 2
"Hai Tracker" 224
"Hai Tracker Pod" 4
"Hai Diamond Regenerator"
"Geode Reactor"
"Boulder Reactor"
"Hai Ravine Batteries"
`"Bondir" Atomic Thruster`
"Hai Williwaw Cooling" 2
"Hai Gorge Batteries"
`"Bufaer" Atomic Steering`
"S-970 Regenerator"

"Energy Blaster"
"Modified Blaster"
"Blaster Turret"
"Modified Blaster Turret"
"Quad Blaster Turret"
"Beam Laser"
"Heavy Laser"
"Electron Beam"
"Laser Turret"
"Heavy Laser Turret"
"Electron Turret"
"Anti-Missile Turret"
"Heavy Anti-Missile Turret"
"Particle Cannon"
"Proton Gun"
"Plasma Cannon"
"Pulse Cannon"
"Pulse Turret"
"Ion Cannon"
"Plasma Turret"

"Flamethrower"
"Meteor Missile"
"Meteor Missile Launcher"
"Sidewinder Missile"
"Sidewinter Missile Launcher"
"Javelin Pod"
"Javelin"
"Hai Tracker"
"Hai Tracker Pod"
"Torpedo"
"Torpedo Launcher"
"Typhoon Torpedo"
"Typhoon Launcher"
"Heavy Rocket"
"Heavy Rocket Launcher"
"Nuclear Missile"

"Afterburner"
"Ionic Afterburner"
"X1700 Ion Thruster"
"X2700 Ion Thruster"
"X3700 Ion Thruster"
"X4700 Ion Thruster"
"X5700 Ion Thruster"
"X1200 Ion Steering"
"X2200 Ion Steering"
"X3200 Ion Steering"
"X4200 Ion Steering"
"X5200 Ion Steering"
"Chipmunk Plasma Thruster"
"Greyhound Plasma Thruster"
"Impala Plasma Thruster"
"Orca Plasma Thruster"
"Tyrant Plasma Thruster"
"Chipmunk Plasma Steering"
"Greyhound Plasma Steering"
"Impala Plasma Steering"
"Orca Plasma Steering"
"Tyrant Plasma Steering"
"A120 Atomic Thruster"
"A250 Atomic Thruster"
"A370 Atomic Thruster"
"A520 Atomic Thruster"
"A860 Atomic Thruster"
"A125 Atomic Steering"
"A255 Atomic Steering"
"A375 Atomic Steering"
"A525 Atomic Steering"
"A865 Atomic Steering"
"Reverse Thruster"

"Cooling Ducts"
"Water Coolant System"
"Liquid Nitrogen Cooler"
"Liquid Helium Cooler"
"D14-RN Shield Generator"
"D23-QP Shield Generator"
"D41-HY Shield Generator"
"D67-TM Shield Generator"
"D94-YV Shield Generator"
"S-270 Regenerator"
"S-970 Regenerator"
"Ramscoop"
"Catalytic Ramscoop"
"Hyperdrive"
"Scram Drive"
"Cargo Scanner"
"Outfit Scanner"
"Surveillance Pod"
"Cloaking Device"
"Mass Expansion"
"Cargo Expansion"
"Bunk Room"
"Small Bunk Room"
"Fuel Pod"
"Interference Plating"
"Laser Rifle"
"Fragmentation Grenades"
"Security Station"
"Nerve Gas"
"Local Map"
"Pilot's License"

"Supercapacitor"
"LP036a Battery Pack"
"LP072a Battery Pack"
"LP144a Battery Pack"
"LP288a Battery Pack"
"LP576a Battery Pack"
"nGVF-AA Fuel Cell"
"nGVF-BB Fuel Cell"
"nGVF-CC Fuel Cell"
"nGVF-DD Fuel Cell"
"nGVF-EE Fuel Cell"
"RT-I Radiothermal"
"S3 Thermionic"
"NT-200 Nucleovoltaic"
"Dwarf Core"
"Fission Reactor"
"Breeder Reactor"
"Fusion Reactor"
"Armageddon Core"
"Stack Core"
"Antimatter Core"

"Pug Zapper"
"Pug Zapper Turret"
"Pug Seeker"
"Pug Anti-Missile"
"Pug Akfar Thruster"
"Pug Akfar Steering"
"Pug Cormet Thruster"
"Pug Cormet Steering"
"Pug Lohmar Thruster"
"Pug Lohmar Steering"
"Pug Biodefenses"