# P107
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> Source: https://en.wikipedia.org/wiki/P107
> Source revision: 1280132111
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{{short description|Type of Half-track prime mover/cargo transport}}
{{other uses}}
{{Infobox weapon
|name= Unic P107 BU
| image= Unic P107 Saumur.jpg
| image_size = 300
|caption= P107 at [Musée des Blindés](/source/Mus%C3%A9e_des_Blind%C3%A9s)
|origin={{FRA}}
|type=[Half-track](/source/Half-track) [prime mover](/source/Prime_mover_(tractor_unit))/cargo transport
|is_vehicle=yes
|service=
|used_by=France, Nazi Germany
|wars=
|designer=
|design_date=1934
|manufacturer=[Unic](/source/Unic)
|unit_cost=
|production_date=1935-1940{{sfn|Vauvillier|Touraine|1992|p=199}}
|number= 3276{{sfn|Vauvillier|Touraine|1992|p=199}}
|variants=
|weight= 3500 kg empty, 5000 kg loaded
|length= 4.85 m
|width= 1.80 m
|height= 2.28 m
|suspension= Leaf-Spring Suspension
|speed= 45 km/h
|vehicle_range=
|primary_armament= Unarmed
|secondary_armament=
|armour= none
|engine= P39 liquid cooled 4-cyl., carburettor, 4-stroke OHV, 3450cc
|crew=2+5
|engine_power= 62 hp/2800 rpm
|pw_ratio=
}}
The '''P107''' was a [World War II](/source/World_War_II) [French](/source/France) [half-track](/source/half-track).
==History==
In the 1920s and 1930s [Citroën](/source/Citro%C3%ABn) developed a long line of half-tracks based on the [Kégresse](/source/K%C3%A9gresse_track) patent. In 1934, the company introduced its newest and more powerful P107 model as a successor to the [Citroën-Kégresse P17](/source/Citro%C3%ABn-K%C3%A9gresse_P17). But before mass production could take place, Citroën went bankrupt and its new owner, [Michelin](/source/Michelin), chose to focus on the civilian markets. [Unic](/source/Unic) was therefore able to acquire a license for the Kégresse patent, and took over the production of the P107.{{sfn|Vauvillier|Touraine|1992|p=159}} From 1937, the vehicles built by Unic received various designations, such as P 107 B, P 107 BU or P 107 U1.{{sfn|Vauvillier|Touraine|1992|p=198}}
The first order was made in 1935.{{sfn|Vauvillier|Touraine|1992|p=160}} Two main variants of the P107 were accepted in French military service: a light [prime mover](/source/Prime_mover_(tractor_unit)) for the [75 mm](/source/Canon_de_75_mod%C3%A8le_1897), [short 105 mm Bourges](/source/Canon_de_105_court_mle_1935_B) and [short 105 mm Schneider](/source/Canon_de_105_court_mle_1934_Schneider) guns,{{sfn|Vauvillier|Touraine|1992|pp=199, 201}} and a platform cargo transport for [engineer](/source/Military_engineer) units.{{sfn|Vauvillier|Touraine|1992|p=223}} A third version was also delivered to transmission units.{{sfn|Vauvillier|Touraine|1992|p=123}} 1,274 examples were delivered before the war{{sfn|Vauvillier|Touraine|1992|p=160}} and 1,896 more were delivered until June 1940.{{sfn|Vauvillier|Touraine|1992|p=161}}
==Foreign use==
60 P 107s were ordered by [Poland](/source/Poland) on 27 August 1939 but on 22 September they were recalled to France while en route to Poland.{{sfn|Vauvillier|Touraine|1992|p=199}}
During World War II, the Germans used these captured half-tracks extensively under the name ''leichter Zugkraftwagen 37 U304(f)'' to tow various anti-tank guns.[{{cite encyclopedia|title=Unic Kégresse P 107|language=fr | encyclopedia =Encyclopédie des armes : Les forces armées du monde|publisher=Atlas|year=1986|pages=1839–1840|volume=II|number=20. Semi-chenillés 1939-1945|ref={{harvid|Encyclopédie des Armes|1986}}}}]
With German half-tracks in short supply, Major [Alfred Becker](/source/Alfred_Becker) of the 21. Panzerdivision (which in 1944 was stationed near Caen in Normandy) suggested converting captured French vehicles. He ordered the conversion of available Unic half-tracks into ''leichter Schützenpanzerwagen'' (light armoured personnel carriers).