i notice that the tyre thing didn't try to get over the wooden wall of the sandpit. The one drawback with wheeled vehicles and tanks come to that. Once you meet an upright obstacle that is higher than the centre line of the leading axle you're f......., er......... knackered! Unless you get out and ramp the lead in!
If that ball thing could have been shown to Barnes-Wallace, he could have saved Guy Gibson the time and effort of going to the Ruhr valley. They could have driven them there...point and release...like a ferret...
Guy Gibson’s leadership that night is one of the best examples of a true leader.
After he dropped his bomb he saw the next Lancaster get shot down. When the third Lancaster made its run Gibson flew ahead of it to draw the antiaircraft fire. That is impressive, but it doesn’t end there. Gibson then flew ahead of the fourth Lancaster to draw the antiaircraft gunner’s fire as it made its run.