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The Brotherhood T-51b power armor is a piece of armor in Fallout: New Vegas.


A pre-War product of West Tek in conjunction with the United States government.[1] The armor was developed at Fort Strong, utilized in both China and at the Battle of Anchorage.[2][3][4][5]


Brotherhood T-51b power armor provides a Damage Threshold of 25 as well as a bonus of 1 to Strength and +25% Radiation Resistance. It can be repaired with T-51b power armor, T-45d power armor, and with salvaged power armor. Power Armor Training is required in order to wear this armor.

This armor acts as a Brotherhood of Steel disguise, which will provoke hostility with NCR personnel until having peacefully completed the Brotherhood section of For the Republic, Part 2.


  • Hidden Valley bunker - can be pickpocketed from Head Paladin Hardin if he becomes Elder as he will not wear it.
  • Black Mountain - two can be found in a radioactive crater southwest, on paladins Hughes and Fairbanks. If having only found Fairbanks (paladin with the logs), Hughes' body probably glitched into the side of the crater. About 5 centaurs, and Moe are holed up in and around the crater.
  • Nellis Air Force Base - two can be found just outside the base. They can be found while avoiding the artillery shells flying in one's direction, or gain entrance to Nellis then come back and search in relative safety.
  • REPCONN headquarters - two can be found on the third floor. There are two downed Brotherhood of Steel members, one under a fallen chunk of the ceiling, the other against the wall, a few feet from Piers Isley's briefcase.
  • Four more can be looted from dead Paladins depending on how Veronica's quest, I Could Make You Care, is finished.
  • Can be obtained from Hidden Valley if the Courier has the Mister Sandman perk and kills sleeping paladins. (Doesn't turn any BoS characters hostile), however, in a "Hidden" position, with a silenced weapon, the Brotherhood will turn hostile unlike any other faction even if members are stealthily killed.
  • Can also be pickpocketed from sleeping paladins as they will remove it while sleeping. The paladin at the shooting range, however, will not remove his to go to sleep. Also, the paladins who sleep in the beds near the range are the only ones who remove their armor for sleeping. It's almost impossible to pickpocket it, even with a Sneak skill of 100 or a Stealth Boy.


In response to Ricky claiming they killed a Brotherhood of Steel paladin but shooting through the helmet eyeslit, the Courier replies that the eyeslits of T-series power armor are bullet-proof.[6]


  • PCPC Playstation 3Playstation 3 Xbox 360Xbox 360 Brotherhood T-51b power armor is much more common than intended, due to the armor occupying a list meant to hold Brotherhood T-45d power armor. Among other issues, this results in the dead paladins found in the quest Still in the Dark being attired in T-51b armor, rather than the intended T-45d armor. [verified]
  • PCPC Playstation 3Playstation 3 Xbox 360Xbox 360 If you give the armor to a companion to wear, and the response is "This follower will not wear this faction's armor," the armor might disappear. The only way to resolve this is to reload a save. [verified]


  1. ZAX 1.2: "In 2069, West Tech was the single largest contractor for the United States government; its largest contract being Powered Infantry Armor Model T-51b."
    (ZAX 1.2's dialogue)
  2. Fort Strong terminal entries; General Brock's terminal, General Brock's Report - June 2076
  3. Fallout 4 loading screens: "The T-51 series of Power Armor was the pinnacle of mechanized protection before the Great War. First introduced in the Battle of Anchorage, it is highly valued today for its increased protective capabilities."
  4. Capitol Post terminal entries; Capital Post Top Stories -- January 11, 2077
  5. Constantine Chase: "How's our boys in the suits doing?"
    Thomas Morgan: "The T-51b units are at 95 percent readiness level. We've had a bit of trouble adapting them to the cold."
    Constantine Chase: "What are we looking at for losses if we pull this off?"
    Thomas Morgan: "I'd say about 20 percent, sir. But that number significantly decreases if we can get the tin cans in there."
    Constantine Chase: "Any word from Washington on my latest request?"
    Thomas Morgan: "Sorry sir, they said the technicians are still dragging their heels a bit on the fusion power plant issues."
    Constantine Chase: "Well you tell them that if they want their viable liberation contingency ready in case Operation: Anchorage fails, they need to get off their asses!"
    (Constantine Chase and Thomas Morgan's dialogue)
  6. The Courier: "You're saying that you killed a Brotherhood of Steel Paladin?"
    Ricky: "What's it sound like I'm saying? If I was saying what you said I was saying, then yeah, I said it!"
    The Courier: "Please go on. This promises to be entertaining."
    Ricky: "I was walking along, minding my own, and up pops one of them Brotherhoods. He yells "Hand over that laser rifle, asshole!" So I hand it over, just to make him think I'm scared! But really I'm not! I never am! Before he knows what hit him, I draw my 11mm machinegun and BAM! BAM! Right through the eyeslit in his helmet! D.O.A.!"
    The Courier: "What a load of crap. The eyeslits of T-series power armor are bullet-proof!"
    Ricky: "Then I guess this dumb fucker's armor musta been... D-series or something! All I know is, he died up real dead when I killed him, okay?"
    (Ricky's dialogue)