There is big distance to attain 12KNm between the difference speeds of conditions v=0.5~2.5m/s at angle ?=45º/s. When the ? increases the torque will become big, meantime the speed v increases the torque is big too. The biggest one is 18KNm with above condition at acceleration ? ?= 20º/s2. It means that the decreased acceleration will increase the torque. The least one is happened on ?=25º/s. there is little change between acceleration ? ?= 20º/s2 and 25º/s2. There is a trend the former is a little larger than the later. The effective turn is v>?>?.