George makes a 1/25 scale drawing of a triangular sail. The triangle in his drawing is 2 feet high with a base of 1 foot. What is the area of the sail?

Since the drawing is in a 1/25 scale, the dimensions of the actual sail are 25 times the dimensions of the drawing.

The height of the actual sail is 2 feet × 25 = <<2*25=50>>50 feet.
The base of the actual sail is 1 foot × 25 = <<1*25=25>>25 feet.

The area of the sail is (1/2) × 25 feet × 50 feet = <<(1/2)*25*50=625>>625 square feet. Answer: \boxed{625}.