The structural engineering design section within the engineering department of a regional electrical utility corporation has developed several standard designs for a group of similar transmission line towers. The detailed design for each tower is based on one of the standard designs. A transmission project involving 50 towers has been approved. The estimated number is engineering hours needed to accomplish the first detailed tower design is 126. Assuming a 95% learning curve, what is your estimate of the number of engineering hours needed to design the eighth tower?