Methods of securing
Two types of tie-down arrangements each are approved for securing tracked and wheeled vehicles on
railway wagons. Those types of tie-down arrangements, and their use are summarized in the table at
Securing of Tracked Vehicles by Type I Arrangement:
A chock as described in Figures 1, 2 and 5 is to be placed at the front and rear of each track in such
a manner that the tracked vehicle rests firmly between the four chocks, as if in a cradle mounting.
Two tie-down as described in sub-para 7.a. are to be attached at either end of each tracked vehicle.
As far as possible, these tie-down are to be arranged crosswise and transverse to the direction of
travel; they should be only moderately tensioned.
Change 4 AA-12