While you are playing Fallout 4 and on the trip to the Wastelands, the Power Armor is the most powerful weapon you can get. Power Armor is a vehicle which will speed up movement and increase performance. Each part of this Power Armor is kept at specific spots throughout the map. The game change the parts with those equipped at the moment in case you wish to upgrade the overall machine or may be you would just want to remove the damaged parts.
Fallout 4 Guide: How To Get T-45 And T-51 Power Armor
T-45 POWER ARMOR
From the starting position at Vault 111, which is at the upper portion of the map, you need to move towards east until you reach the Robotics Disposal Ground. You will find some Fusion Cores and a mini-nuke Fat Man. Move towards southeast of that marker while keeping a safe distance from the USAF Satellite Station Olivia, until you see a crashed Vertibird. That will be have full set of T-45 Power Armor.
PARTIAL SET OF T-45 POWER ARMOR
From the Vault 111, move southeast until you reach the Red Rocket. Now at Covenant Lake, at the northern tip, you need to pop a Rad-X and then go underwater and grab the Power Armor. There you will get another downed Vertibird with a partial set of T-45 Armor.
PARTIAL SET OF T-51 POWER ARMOR
Towards the South of Vault 111, you need to locate the Fort Hagan and head east until you find Fiddler’s Green Trailer Estates. Now hack the terminal there to get access to the Fiddlet’s Green Trailer Key. Then you can use the key to get the armor.
PARTIAL T-45 POWER ARMOR
While moving from Vault 111 to Covenant Lake, head towards the southeast until you get to the Irish Pride Industries Shipyard. While heading towards the building you will see a crashed Vertibird and you get a partial set of T-45 Power Armor.