[PAR35]

There's also the structural weakness you introduce by putting a bomb bay betwixt the gear.,

I think that that would be the greatest engineering challenge. How to maintain the structural integrity while cutting a long hole in the bottom of the plane. The 130 does have the advantage of having been over-engineered in the slide rule days, so there is a far greater margin to work with than there would be in an aircraft designed on a computer.

I recall that a big question for the 737 modification was the loiter time.

[Wristpin]

IRT loiter time, I believe the MMA was to have inflight refueling capability,