ADDlicable documents  One evident change that appears early in the document is the far fewer number of Applicable Documents  called out in the AlAA standard. The only documents in this section of the standard are the ones  specifically mentioned in the body of the text. In a parallel effort, each one of the documents named in the  original MMA specification was validated regarding its status (active, cancelled, superseded, etc.). Many  of them, if not mentioned in the text, were moved to the new Bibliography section at the end, provided the  COS consensus agreed that they still contained useful information. One important note to point out is that,  simply because the government decided to cancel a document during acquisition reform, it does not  mean the contents of that specific document are automatically null and void. After all, the MMA  specification falls into the “cancelled category and the industry still recognized it as valid, just not eligible  as a contractual compliance document.  Acceleration term removed from static toraue marain  After significant debate, the COS decided to remove the acceleration term from the equation to calculate  static torque margin. Since the true meaning of this particular margin is to show how much force exists  above and beyond all static resistances, the acceleration term was deemed irrelevant. A moving  mechanical assembly must have sufficient motive force to begin motion, as evaluated with a free-body  diagram. Forces required for a given acceleration are deemed performance requirements, and are thus  captured in the dynamic force margin requirement.  New section on stepper motor marain in forcehoraue marain section  One of the areas without clear definition in previous forms of this document was the lack of attention  given to forcehorque margins with the use of stepper motors. A section was added which describes two  ways to calculate stepper motor margin:  1. using motor available torque (pull-in torque) and comparison to friction loads, and  2. using a step stability analysis  Guidelines and conditions are also given regarding which of the two methods should be used in various  applications.  Expansion of related electrical and electronic reauirements  Although seemingly contradictive of the section above describing the deletion of peripheral areas, it was  recognized that there are a significant number of eIectricaVelectronic subjects that are particularly  germane for design and testing of MMAs. A short paragraph exists for each of the following subjects:  Cables and Wiring  Connectors  Cable Supports and Strain Relief  Cable Loops  Current Draw Grounding  Electromagnetic Interference/Electromagnetic Compatibility (EMVEMC)  Electrostatic Discharge Flight Instrumentation  For some subjects, little more is given than a statement of consideration to ensure an area is not  overlooked, but for others, pertinent reference documents are cited, and lessons learned are described.  Again, the COS was focused on MMA-related requirements, but felt at least this level of detail was  justified.  Additional recoanition of newer. common devices  Since the last release of the MMA specification in 1988, many new technologies have been developed  and/or are more widely used, and thus warranted recognition. Non-explosive devices, including wax  actuators, shape memory actuators, and split spool release devices are examples of these “next-  generation” items. There is actually a reduction of information in this standard regarding pyrotechnic  109