T-51b powered infantry armor, or power armor, represented the peak of armored infantry technology before the Great War.
The Brotherhood of Steel does not possess the technology required to manufacture new suits of power armor and relies only on repaired and refurbished pre-Great War suits. Among the soldiers of the Enclave, this power armor is seen as obsolete, as it was replaced by the Enclave's advanced power armor, though it should be noted that it is still used by soldiers of the Enclave who have not been issued the newer armor, most likely due to slow production rates for a faction that is still quite small and possess only limited resources in the post-atomic world.
The armor is fitted with a back-mounted TX-28 MicroFusion Pack which generates an output power of 60,000 Watts to power the HiFlo hydraulic systems built into the frame of the suit. Made of a poly-laminate composite, the outer shell of the T-51b is lightweight and capable of absorbing over 2500 Joules of kinetic impact. The 10-micron-thick silver ablative coating can reflect laser and other radiation emissions without damage to the composite subsurface, and the eyeslit for the helmet is made of bulletproof glass to protect the wearer from any projectiles. It also includes a recycling system that can convert human waste into drinkable water, enhancing survival. The armor is completely sealed, and offers excellent protection from radiation.
• Protection against melee and unarmed weapons: 120 points of damage.
• Protection against ballistic weapons: 105 points of damage.
• Protection against energy weapons: 95 points of damage.
• Protection against explosives: 85 points of damage.
• Grants: +17 to all attack rolls, +1 STR, -20 Radiation Points received.
• Value: 32,000 caps.
Subject: T51-B Power Armor 
