Difference between revisions of "TM Numbering Specification"
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==Signal Corps Technical Manuals, TM-11 Series== | ==Signal Corps Technical Manuals, TM-11 Series== | ||
| − | Technical Manuals originated | + | Technical Manuals originated around 1940 as a consolidation of earlier Radio Pamphlets, c 1918; Radio Communications Pamphlets, c 1921; and Training Manuals, Training Regulations, and Technical Regulations, c 1930. |
| − | TM 11-201, the earliest known, is entitled "Aircraft Radio SCR-134" and was formerly documented TR-1201-5. Initially, the manuals were not always grouped by equipment category, as the need did not then exist. With the explosion of equipment in World War Two, groupings soon became necessary | + | TM 11-201, the earliest known, is entitled "Aircraft Radio SCR-134" and was formerly documented TR-1201-5. Initially, the manuals were not always grouped by equipment category, as the need did not then exist. With the explosion of equipment in World War Two, groupings soon became necessary. |
| − | + | Many of the earlier numbers were "recycled" when the equipment for which they were originally designated became obsolete. There was also an inclusion of early 1950s equipment among much older units. In some cases, an A or B prefix was added to an original number while updating. But in general, a new number would be issued, especially in the latter 1950s. In 1958, a new FSN (Federal Stock Number) procedure was instituted, which more accurately defined the item in question and linked its TM 11- number to its supply number. | |
| − | Many of the earlier numbers were "recycled" when the equipment for which they were originally designated became obsolete. There was also an inclusion of early 1950s equipment among much older units. In some cases, an A or B prefix was added to an original number | ||
For example: | For example: | ||
Revision as of 12:13, 19 August 2013
Signal Corps Technical Manuals, TM-11 Series
Technical Manuals originated around 1940 as a consolidation of earlier Radio Pamphlets, c 1918; Radio Communications Pamphlets, c 1921; and Training Manuals, Training Regulations, and Technical Regulations, c 1930.
TM 11-201, the earliest known, is entitled "Aircraft Radio SCR-134" and was formerly documented TR-1201-5. Initially, the manuals were not always grouped by equipment category, as the need did not then exist. With the explosion of equipment in World War Two, groupings soon became necessary.
Many of the earlier numbers were "recycled" when the equipment for which they were originally designated became obsolete. There was also an inclusion of early 1950s equipment among much older units. In some cases, an A or B prefix was added to an original number while updating. But in general, a new number would be issued, especially in the latter 1950s. In 1958, a new FSN (Federal Stock Number) procedure was instituted, which more accurately defined the item in question and linked its TM 11- number to its supply number.
For example:
| TM 11-5815-283-35 | |
|---|---|
| TM | Technical Manual |
| 11 | Signal Equipment |
| 5815 | Teletype and Facsimile Equipment |
| 283 | AN/FGC-70X |
| 35 | Field and Depot Maintenance |
| P | Repair Parts and Special Tools |
The Chart below Explains the Designators
| Technical Manual Designations | |
|---|---|
| SEC | DEF |
| TM |
|
| 11 |
|
| 5815 |
|
| 283 |
|
| 35 |
|