Weren't the Germans the ones that stopped autorotation training on the EC-135 as dangerous/damaging to the aircraft? We should expect an increase of losses in the U.S.Army due to similar incidents now that they train on on the EC-145.
The Sultan
The problem of ARs with the 135 is the construction of those hinge- and bearingless rotorblades. The low RRPM in the final phase of AR ( cushion prior touchdown ) has caused cracks at the controlcuffs when doing excessive amounts of ARs during training. ARs with powerrecovery are therefore no problem. The 145 has different blades ( like BK117/ BO105 ) and are not effected by these problems.
skadi