Exhibit 99.26 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-F KEY PERFORMANCE FACTORS November 30, 1997 Expected B Maturity 6/17/02 Blended Coupon 6.5244% Excess Protection Level 3 Month Average 5.12% November, 1997 5.00% October, 1997 5.49% September, 1997 4.87% Cash Yield 17.42% Investor Charge Offs 5.01% Base Rate 7.41% Over 35 Day Delinquency 4.98% Seller's Interest 11.93% Total Payment Rate 12.41% Total Principal Balance $31,670,462,473.51 Investor Participation Amount $706,000,000.00 Seller Participation Amount $3,779,127,955.02