QH 1 lacked the side strengthening that the other three QH's had.
ABOVE: End view of non handbrake end of QH 1
BELOW: Closeup of QH 1
BELOW: A comparison shot of QH 3 showing the strengthening applied to QH 2 - 4
QH 1 lacked the side strengthening that the other three QH's had.
ABOVE: End view of non handbrake end of QH 1
BELOW: Closeup of QH 1
BELOW: A comparison shot of QH 3 showing the strengthening applied to QH 2 - 4