WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>


<ARTICLE>   6
            
<CIK>       0000764860
            
<NAME>  FLAGSHIP MISSOURI DOUBLE TAX EXEMPT FUND
                                  
<SERIES>
                                  
<NUMBER>                          123
                                  
<NAME>                            CLASS C
                                  
<MULTIPLIER>                      1
                                  
                                  
                                  
<S>                               <C>
<PERIOD-TYPE>                      6-MOS
                                   
<FISCAL-YEAR-END>                  MAY-31-1997
                                   
<PERIOD-START>                     JUN-01-1996
                                   
<PERIOD-END>                       NOV-31-1996
                                   
<INVESTMENTS-AT-COST>              208,277,875
                                   
<INVESTMENTS-AT-VALUE>             220,602,604
                                   
<RECEIVABLES>                      5,594,740
                                   
<ASSETS-OTHER>                     573,557
                                   
<OTHER-ITEMS-ASSETS>               0
                                   
<TOTAL-ASSETS>                     226,770,901
                                   
<PAYABLE-FOR-SECURITIES>           2,475,410
                                   
<SENIOR-LONG-TERM-DEBT>            0
                                   
<OTHER-ITEMS-LIABILITIES>          1,212,007
                                   
<TOTAL-LIABILITIES>                3,687,417
                                   
<SENIOR-EQUITY>                    0
                                   
<PAID-IN-CAPITAL-COMMON>           213,955,533
                                   
<SHARES-COMMON-STOCK>              644,571
                                   
<SHARES-COMMON-PRIOR>              592,367
                                   
<ACCUMULATED-NII-CURRENT>          0
                                   
<OVERDISTRIBUTION-NII>             (42,162)
                                   
<ACCUMULATED-NET-GAINS>            (3,154,616)
                                   
<OVERDISTRIBUTION-GAINS>           0
                                   
<ACCUM-APPREC-OR-DEPREC>           12,324,729
                                   
<NET-ASSETS>                       223,083,484
                                   
<DIVIDEND-INCOME>                  0
                                   
<INTEREST-INCOME>                  6,770,498
                                   
<OTHER-INCOME>                     0
                                   
<EXPENSES-NET>                     (1,021,750)
                                   
<NET-INVESTMENT-INCOME>            5,748,748
                                   
<REALIZED-GAINS-CURRENT>           1,429,711

<APPREC-INCREASE-CURRENT>           6,711,956
                                    
<NET-CHANGE-FROM-OPS>               13,890,415
                                    
<EQUALIZATION>                      0
                                    
<DISTRIBUTIONS-OF-INCOME>           (153,602)
                                    
<DISTRIBUTIONS-OF-GAINS>            0
                                    
<DISTRIBUTIONS-OTHER>               0
                                    
<NUMBER-OF-SHARES-SOLD>             79,842
                                    
<NUMBER-OF-SHARES-REDEEMED>         (37,885)
                                    
<SHARES-REINVESTED>                 10,247
                                    
<NET-CHANGE-IN-ASSETS>              799,619
                                    
<ACCUMULATED-NII-PRIOR>             0
                                    
<ACCUMULATED-GAINS-PRIOR>           (4,584,327)
                                    
<OVERDISTRIB-NII-PRIOR>             0
                                    
<OVERDIST-NET-GAINS-PRIOR>          0
                                    
<GROSS-ADVISORY-FEES>               551,105
                                    
<INTEREST-EXPENSE>                  0
                                    
<GROSS-EXPENSE>                     1,198,444
                                    
<AVERAGE-NET-ASSETS>                219,839,555
                                    
<PER-SHARE-NAV-BEGIN>               10.50
                                    
<PER-SHARE-NII>                     0.25
                                    
<PER-SHARE-GAIN-APPREC>             0.39
                                    
<PER-SHARE-DIVIDEND>                (0.25)
                                    
<PER-SHARE-DISTRIBUTIONS>           0.00
                                    
<RETURNS-OF-CAPITAL>                0.00
                                    
<PER-SHARE-NAV-END>                 10.89
                                    
<EXPENSE-RATIO>                     1.47
                                    
<AVG-DEBT-OUTSTANDING>              100,487
                                    
<AVG-DEBT-PER-SHARE>                0.00
                                    
        







</TABLE>