Power Armor Frame

The power armor frame is a piece of armor in Fallout 4.

Characteristics
The power armor frame is the base on which all power armor parts can be added and requires a fusion core to function. The base frame provides a boost to Strength, Damage Resistance, and Energy Resistance, even without any armor added on.

Locations

 * One can be found in the abandoned shack.
 * One can be found on the top of Court 35, west of Custom House tower. Guarded by a sentry bot and an assaultron. The frame is in a locked room that opens when the red buttons in the room the robots came from are pressed. *Note that both robots will automatically self-destruct if the player character gains the Hidden status after releasing them, leaving the power armor completely unguarded.
 * One can be found underwater next to a crashed vertibird outside Covenant.
 * One can be found to the south of Drumlin Diner nearby a destroyed train, behind a sealed security gate that can be opened via an advanced-level terminal.
 * One can be found in the green container in front of the Federal ration stockpile.
 * One can be found in a locked trailer at Fiddler's Green Trailer Estates east of Fort Hagen, The Trailer can only be opened by key. The key can be found inside a novice-locked safe within the Office Building near the pool.
 * One can be found near the beginning of the bridge (in a small building) to Fort Strong if walking to it.
 * One can be found in a warehouse south of Greater Mass blood clinic.
 * One can be found locked inside of a cage at a military checkpoint, which is located north-east of Mass Gravel & Sand (which itself can be located north-by-north-east of the Cambridge Police Station). The cage is locked with an Advanced difficulty terminal.
 * One can be found northwest of Nahant Sherrif's Department, on a cargo floater with military vehicles on it. The frame is found inside an open blue container behind an advanced locked door.
 * A frame can be found in the National Guard training yard behind a master-level locked door and a terminal that must be hacked.
 * One can be found northeast of the Poseidon energy turbine 18-F next to a crashed plane and broken down tank.
 * One can be found in one of the Revere satellite array's dishes.
 * To the northwest of Revere satellite array and northeast of the National Guard training yard up the road, there's an open trailer on the road. A frame with a set of parts can be found here.
 * One can be found behind an expert-level terminal at the South Boston military checkpoint.
 * Four frames can be acquired in the mechanical bay of The Prydwen, however only one can be acquired without stealing if the Sole Survivor has aligned with the Brotherhood of Steel and been promoted to knight.
 * One can be found in between USAF Satellite Station Olivia and the Robotics Disposal Ground by the crashed vertibird.
 * One can be found south of the USS Constitution. The Power Armor is located on a partially sunken barge. It is easily recognizable from the Vertibird that has been tipped on it's side, as well as there being several APC-like vehicles present. Hidden among the vehicles will be a cage with a Terminal on the side. Simply hack Terminal in order to unlock the security gate on the cage and gain access to the armor. This suit can be found with a Fusion Core already inserted.
 * One can be found during When Freedom Calls or at any other time on the roof of the Museum of Freedom.
 * A set can be found on the top of the double-layered overpass highway triangulated in between College Sqaure, Greygarden and the Corvega Plant factory. There's a small yellow elevator that can take the Sole Survivor to the top. There's a crashed vertibird hanging over the edge with a T-51 standing next to it.
 * Bought from:
 * Atom Cats garage from Rowdy. One can be stolen from this location as well.
 * Commonwealth Weaponry in Diamond City
 * KL-E-0 in Goodneighbor
 * One can be ordered from Proctor Teagan on The Prydwen.

Bugs
If you try to modify a Power armor frame that has no pieces on or in your inventory, you can become stuck in an inescapable animation loop. The only way to escape it is to reload an earlier save.