BMI Frankfurt
I just assumed that three flights would be by BMI A320 and the 09.00 inbound to BHX & MAN would still be LH mainline or in BHX;s case possibly Cityline Embraer. The A320 could do eight sector days starting at 0600 and finishing at 23.00 but it is very tight and of course the flights have to fit into the Lufthansa departure banks at Frankfurt and this might not work.
Brian
As for BHX & MAN Munich I have not heard that one. It would be bad news for spotters but good for the number of seats available from BHX, as it is currently 2 x 86 seat CRJ9 and 1 x 116 seat 195 (or 190). Three daily A319 or A320 might be a tad much for BHX but you never know.
Pete