Exhibit 99.24

MBNA MASTER CREDIT CARD TRUST II SERIES 1997-B

KEY PERFORMANCE FACTORS
June 30, 1997



Expected B Maturity 3/15/12


Blended Coupon 5.9210%



Excess Protection Level
3 Month Average 4.25%
June, 1997 4.85%
May, 1997 4.43%
April, 1997 3.47%


Cash Yield 17.16%


Investor Charge Offs 4.60%


Base Rate 7.72%


Over 35 Day Delinquency 4.57%


Seller's Interest 10.08%


Total Payment Rate 12.14%


Total Principal Balance $27,184,721,330.37


Investor Participation Amount $1,000,000,000.00


Seller Participation Amount $2,741,483,811.88