M13 Multiple Gun Motor Carriage
self-propelled antiaircraft gun
The M13 multiple gun motor carriage (MGMC), otherwise known as the M13 half-track, was a self-propelled anti-aircraft gun used by the U.S. Army during World War II that was armed with two .50 caliber M2HB heavy-barrel Browning machine guns. Developed in response to a requirement for a mobile anti-aircraft (AA) vehicle, the vehicle was produced by the White Motor Corporation between July 1942 and May 1943. The only time it was ever used in combat was when the Americans landed at Anzio in January 1944. It was replaced by the more heavily armed M16 multiple gun motor carriage in April 1944.
The M13 evolved from a series of several unsuccessful prototypes that were trialed from 1940 to 1942. Of these, the T1E4 was selected and given the official name of the M13 MGMC, before being placed into production. Half of the M13s produced were converted into M16s on the production lines.
Specifications
The M13 half-track was 21 feet 4 inches (6.50 m) long, 7 feet 1 inch (2.16 m) wide, and 7 feet 8 inches (2.34 m) high with a wheelbase of 135.5 inches (3.44 m). It had bogie suspension for the wheels and vertical volute springs for the tracks. It had a 60 US gal (50 imp gal; 230 L) fuel capacity and a range of 175 miles (282 km).
The public source identifies “M13 Multiple Gun Motor Carriage” as self-propelled antiaircraft gun. This brief keeps that definition visible, then builds a research path around Multiple, Motor and Carriage.
Why this record matters
A short description can identify a subject without explaining its stakes. For “M13 Multiple Gun Motor Carriage”, the useful work is to connect “self-propelled antiaircraft gun” to the records capable of establishing context and consequence.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 21, 2026. The linked authority identifier is Q4043332. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1942, 1943, 1944 and 1940.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “M13 Multiple Gun Motor Carriage”, its source revision and the description used here.
- Expand the search: follow M13 Multiple Gun Motor Carriage primary sources, M13 Multiple Gun Motor Carriage archive and Multiple research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “M13 Multiple Gun Motor Carriage”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “M13 Multiple Gun Motor Carriage” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.