They included Capt .
Hoehn 's first army folboats were tested at the ZES commando base in Cairns , Queensland by commandos under the direction of Major Ivan Lyon for preparation of the Operation Jaywick raid .
commandos included Capt .
Hoehn 's first army folboats were tested at the ZES commando base in Cairns , Queensland by commandos under the direction of Major Ivan Lyon for preparation of the Operation Jaywick raid .