Today in WW II: 21 Mar 1945 Copenhagen, Denmark headquarters of the German secret police [Gestapo] bombed by 20 RAF Mosquitos escorted by 30 Mustangs. Nearby school accidently hit killing 123 civilians including 87 children.  

Chart of Military Vehicle Trailers, Chassis

M-116A2 Chassis: Trailer, Cargo, 3/4 ton. Photo: Government Liquidation.com
M-116A2 Chassis: Trailer, Cargo, 3/4 ton. Photo: Government Liquidation.com.

Military trailers designated as a chassis are manufactured as a base. Other equipment or components will be added to the chassis, often resulting in a new item with a differnt model number.

The chassis trailers were used as a base for the development of specialized equipment like power units, laundry equipment, field kitchens, welding sets, decomtamination equipment and much more. The chassis trailer in a given family of trailers was also usually the base for the common cargo trailer, with the addition of the cargo box to the chassis. For example, the M103 Trailer, Chassis with a cargo box added becomes the M105 Trailer, Cargo (1 1/2 ton 2-Wheel).

Vehicle Description Photo Link
M-102 M-102 Chassis, Trailer, 1 1/2 Ton, 2-Wheel (G-754) M-104 Trailer, 1 1/2 ton based on M102 Chassis
M-103 M-103 Chassis, Trailer, 1 1/2 Ton, 2-Wheel (G-754) M-103 Trailer, 1 1/2 ton
M-115 M-115 Trailer, Chassis, 1/4-Ton, 2-Wheel (FSN 2330-835-8590)
Chassis version of the M100 Cargo Trailer
 
M-116 M-116 Chassis: Trailer, 3/4 ton M-116 Chassis: Trailer, 3/4 ton
M-200 M-200 Chassis: Trailer, 2 1/2-Ton, single axle  
M-353 M-353 3 1/2 Ton General Purpose Trailer M-353 3 1/2 Ton General Purpose Trailer
LTT-HC Light Tactical Trailer Heavy Chassis (LTT-HC)  
LTT-MCC Light Tactical Trailer Marine Corps Chassis (LTT-MCC)