The total length of a day cab semi truck with a 53-foot trailer typically ranges from about 65 to 75 feet, depending on the specific dimensions of the truck and any additional equipment or features. The day cab itself usually measures around 20 to 25 feet in length. Therefore, when combined with the 53-foot trailer, the total length falls within that range.
semi cab
An average semi 'tractor' is about 30 feet long.
The load on the king pin on a semi trailer can be calculated by weighing the vehicle. When weighing the vehicle on a certified scale, the steers (front tires), drives (the two axles on the semi cab) and the tandems (the two axles on the trailer) are all weighed separately as a part of the whole weight. The king pin weight is the weight of the drives.
This varies greatly depending on the type of truck. For example, a sleeper tractor weighs more than a day cab, a refrigerated van trailer weighs significantly more than a flatbed trailer, and so on. I drive a tandem axle day cab Sterling semi (this is a semi tractor with a total of 3 axles and no sleeper), and I pull a 53-foot dry van trailer (this is a box trailer without a refrigeration unit). When I have run it across a scale empty with about 120 gallons of fuel (this will also change weight as fuel weighs about 12 pounds per gallon), the whole truck weighs very close to 29,600 pounds. An empty semi can weigh as much as about 40,000 pounds, leaving room for 40,000 more of cargo before reaching maximum legal weight of 80,000.
header board is a the board on the front of the trailer, or the board that is on the tractor behind the cab/sleeper. this is made of metal and is to prevent the load on trailer coming thru the cab in the event an accident or other emergency
300 pounds
From the front bumber to the back of the cab. BBC = bumber to the back of cab.
Unfortunately, you cannot connect the cab of a lorry to the trailer's as they are stationary and will not move.
I think I should define "Bobtail" This means a Truck designed to tow trailers going down the road withou a trailer. Semi Trucks or in europe Articulated lorries are designed to tow trailers, from there we get to single axle, tandem axle, Tri Drive, Day cab, Cab over, Sleeper and other configurations. Ups has single axle Semi "Tractors" (The name for a semi truck without its trailer) as short as 15 feet. Some of the longer extra large sleeper set ups make the truck 35 feet long.
A bobtail truck is a truck that is not carrying anything. It has no trailer or chassis connected. It is usually the tractor part of a semi truck without the trailer. It can also refer to a truck where all of the axles are connected to the same chassis.
Bobtail insurance is insurance one would need when driving with just the cab of a semi truck without the trailer. One can obtain Bobtail insurance through Reliance Partners, Progressive, and Wolpert.
The biggest you can get is: Cab: 160 inch Sleeper Trailer 53 feet 102 iches 14 feet