Complex sentence: The XP-50 design was similar to that of the XF5F-1 with modifications to the fuselage nose to house the nose-wheel of the tricycle landing gear and provisions for self-sealing fuel tanks and pilot armor.
Split into simpler sentences: The XP-50 design was similar to that of the XF5F-1 with modifications to the fuselage to house the nose wheel of the tricycle landing gear. Other changes were provisions for self-sealing fuel tanks and pilot armor.