Originally Posted by
mustafagander
Blu-y,
Tail mounted engines can cost a lot in design. Start with the simple fact that, because there are no podded engines to hold down the wings, the wing structure must be heavier to resist the moments generated by lift.
Not only that, but wing-mounted engines are typically used as torsional dampers, also allowing a lighter wing structure. And of course tail-mounted engines are much higher up, requiring more expensive platforms & lifting gear for maintenance/replacement.