not shown is connected to data storage disk 70 by a hub 73 to rotate data storage disk 70 at high speed head suspension assembly 10 is mounted on an arm not shown of an actuator motor not shown thereby forming an actuator the actuator motor moves head suspension assembly 10 relative to data storage disk 70 so that the head moves along an arc a which extends substantially along a radius of data storage disk 70 and over a slider air bearing surface protection blade 74 load and unload tang 18 is engagable with a load and unload ramp 76 which is located adjacent to protection blade 74 on the outside diameter of data storage disk 70 fig5 is an end view of head suspension assembly 10 in contact with load and unload ramp 76 head suspension assembly 10 is shown with slider 77 in contact with data storage disk 70 as it would be during the start of the unload cycle and the end of the load cycle a second head suspension assembly 10 39 is shown on the opposite side of data storage disk 70 and is identical to head suspension assembly 10 head suspension assembly 10 is also shown in phantom lines in a ramp detent position as it would be when the data storage disk drive 72 is not in operation when the head suspension assembly 10 is in the ramp detent position the load and unload tang 18 is in a detent 78 of load and unload ramp 76 detent 78 helps to prevent the actuator from moving in case data storage disk drive 72 is dropped on one of its corners or is subjected to other rotational shocks detent also positions slider 77 over air bearing surface protection blade 74 which.