missiles are fully operational and fully explosive loaded rounds, designed for service use in combat. NONSERVICE MISSILES.—These  include  all types of missiles other than service or tactical. They are subdivided  as  captive  air  training  missiles  (CATMs), dummy   air   training   missiles   (DATMs),   special   air training    missiles    (NATMs),    and    practice    guided weapons (PGWs). Some  practice  and  training  missiles  are  used  for actual  launching.  They  contain  live  propulsion  and guidance systems with inert loaded warheads. They are fitted  with  pyrotechnic  fuze  indicator  signals  and/or tracking    flares    that    give    a    visual    indication    of missile/target impact. These missiles can also be fitted with    a    telemetry-type    warhead,    which    transmits electronic    signals    to    a    monitoring    station.    The monitoring   station   displays   the   missile's   in-flight performance   and   missile/target   hit.   Some   types   of exercise missiles contain explosive-destruct charges so the    missiles    destroy    themselves    in    flight.    These explosive-destruct charges, when installed, are used as a safety measure so the missile does not travel beyond the established target range. The  CATMs  are  used  for  pilot  training  in  aerial target  acquisition  and  aircraft  controls/displays.  They have both tactical and training components. The  DATMs  are  ground  training  missiles  used  to train ground personnel in missile assembly/ disassembly,   uploading/downloading,   and   handling procedures. The NATMs are used for pilot training during fleet weapon training exercises. The  PGWs  are  used  for  stowage  procedures  and techniques. All components are completely inert. Service  missiles  are  fired  as  practice  or  training missiles when approved by proper authority. Normally, approval is restricted to missiles that are obsolete or to missiles that have exceeded their normal service life. Guided   missiles   used   in   naval   aviation   include air-to-air and air-to-surface missiles. Air-to-air guided missiles   are   fired   by   one   aircraft   against   another aircraft.  Air-to-surface  guided  missiles  are  fired  from an aircraft against a target on the land or water surface. For  further  information  on  the  classification  of guided missiles, you should refer to United States Navy Ammunition Historical and Functional Data, NAVSEA SWO10-AB-GTP-010, and Identification of Ammunition, NAVSEA SW010-AF-ORD-010. MISSILE DESIGNATION The  Department  of  Defense  established  a  missile and rocket designation sequence. The basic designation (table 3-1) of every guided missile are letters, which are in sequence. The sequence indicates the following: 1. The  environment  from  which  the  vehicle  is launched 2. The primary mission of the missile 3. The type of vehicle Examples  of  guided  missile  designators  common to the Aviation Ordnanceman are as follows: Designator Meaning AGM Air-launched, surface-attack, guided missile AIM Air-launched,   intercept-aerial,   guided missile ATM Air-launched, training guided missile RIM Ship-launched,  intercept-aerial,  guided missile A  design  number  follows  the  basic  designator.  In turn,   the   number   may   be   followed   by   consecutive letters,  which  show  a  modification.  For  example,  the designation   of   AGM-88C   means   the   missile   is   an air-launched   (A),   surface-attack   (G),   missile   (M), eighty-eighty  missile  design  (88),  third  modification (C). In addition, most guided missiles are given popular names,  such  as  Sparrow,  Sidewinder,  and  Harpoon. These   names   are   retained   regardless   of   subsequent modifications to the original missile. MISSILE IDENTIFICATION The external surfaces of all Navy guided missiles, except radome and antenna surfaces, are painted white. The   color   white   has   no   identification   color-coding significance when used on guided missiles. There  are  three  significant  color  codes  used  on guided missiles and their components—yellow, brown, and  blue.  These  color  codes  indicate  the  explosive hazard  in  the  missile  component.  If  components  are painted blue on a practice missile and have a yellow or brown  band  painted  on  them,  the  component  has  an explosive  component  that  doesn't  have  a  comparable part in a service missile. 3-2