[Graham Boak]

I haven't heard that the Baltimore was particularly difficult to fly, but as a high-powered twin it will have had a high Vmc, the minimum control speed on one engine. This is the lowest speed at which the aerodynamic forces on the fin/rudder are strong enough to counter the asymmetric pull of only having one engine at full power. The pilot will have needed full power to keep it airborne, and this will have given a strong swing into the dead engine. He will have countered this with the rudder, but had speed fallen below Vmc the aircraft would have been uncontrollable.