Trying to lockpick the door will cause the Brotherhood to turn hostile.

Lost Hills: Two (2) found in the storeroom on level 1.

Fix the broken T-51b power armor: Quest reward.

Rescue Initiate from the Hub.: Quest reward from Talus for characters with 16 karma or more.

Hardened power armor: An upgraded version of the armor and easily the best armor in the game.

The only issue is the fact that it weighs a figurative ton compared to the carry capacity of the player character. The second most powerful armor in the game, the T-51b is exclusive to the Brotherhood of Steel and is a mandatory piece of equipment for late game combat entanglements. Comfort is imperative to success in combat operations, aided by the power armor's ability to recycle urine into perfectly drinkable water, allowing the operator to survive for weeks in power armor.

A properly fitted armor worn by a well trained operator feels like an extension of one's body.

However, to achieve optimal performance, the armor has to be custom-fitted to each operator. Due to the design of the T-51, it's much more nimble and agile than the T-45. Powered by a back-mounted TX-28 Micro-Fusion Pack generating 60,000 watts, the HiFlo hydraulics integrated into the frame of the suit allow it to carry the bulk of the suit and allow the soldier to carry heavy weapons into combat. The T-51's ace in the hole is the hydraulics system integrated into the West Tek power armor frame. A forehead-mounted lamp is provided for convenience. As with the T-45, the ear ports double as accessory mounting points, with a drop-down aiming ocular being standard on all T-51 suits. Compared to its predecessor, the helmet is smaller and more durable, made out of a single piece of composite, with an easily removable vision assembly. As with all T-series, the vision slit is bullet-proof. The helmet is an integral part of this protection, fitted with a rubberized cowl mounted to the chest plate and providing a tight seal. To further enhance protection against direct contact with and contamination by radioactive, biological or chemical substances, the armor can be made air tight, allowing its operator to explore even the most contaminated areas with reasonable safety as long as the armor is not compromised. The surface can be treated in a special chemical process to increase its defensive properties substantially. The shell is coated in a 10 micron silver ablative layer that allows for reflecting laser blasts and radiation emissions without damaging the composite surface directly. The strength of the material is further enhanced by the organic, rounded profile of the shell, improving the chances of deflecting projectiles and explosions compared to the older steel plating present on the T-45.

Unlike its older sibling, the exterior shell is made from a poly-laminate composite capable of absorbing over 2.5 kilojoules of energy without damage. Like the T-45, it is designed for a single human operator, patterned after the human silhouette. Unlike its predecessor, the T-51 benefits from a long development cycle and uses custom-made components to create not a stop-gap model, but a weapon that provides the best possible protection through incorporating the latest passive defense features. Developed over a decade of war by West-Tek, it incorporates many of the lessons gleaned from the T-45 power armor service history.

The T-51 is the apex of pre-War powered combat infantry development. The following section is transcluded from T-51 power armor.

Fallout new vegas best power armor