So long as the weight rating of the vehicle doesn't exceed 26k, yes, with two exceptions - you would need a Class C (minimum) CDL with hazmat endorsement if the vehicle is transporting a quantity of hazardous materials which requires placards to be displayed, and you would need a Class C (minimum) CDL with passenger endorsement if it is a bus designed to transport more than 15 passengers (including the driver).
No. The gross weight cannot exceed the gross vehicle weight rating and/or the registered weight rating of the vehicle, regardless of the license of the person driving it.
Only if you're operating it on a for-hire basis. For personal, recreational use, you do not.
If it's not a firefighting or first response vehicle, recreational vehicle, registered farm vehicle, or military vehicle (operated by military personnel in the course of their duties), then yes - not because of the the air brakes, but because of the weight rating of more than 26,000 lbs. GVWR.
26000 lbs. is the Gross Vehicle Weight Rating. That's the max it can legally weigh on the road. Subtract the vehicle's tare (empty) weight from that, and you have your allowable net weight. 4-1/2 to six tons is typical of the allowed net weight for a 26k GVWR truck.
The air brakes don't matter, insofar as whether or not a CDL is required. As for the GVW being over 26,000 lbs., yes, unless your vehicle falls in criteria for the farm vehicle, military vehicle, emergency vehicle, or recreational vehicle exemptions.
ANY single vehicle or combination of vehicles with a Gross Vehicle Weight Rating/Gross Combination Weight Rating of more than 26,000 lbs. requires a CDL, unless it falls into a category of vehicle exempt from CDL licencing requirements (firefighting vehicles, registered farm vehicles, recreational vehicles, etc.). States have their own licencing requirements pertaining to exempt vehicles.
If the Gross Vehicle Weight Rating - not the actual laden weight at the time - is under 26,000 lbs., then no. You will, however, need a current and valid DOT medical card.
The "gross" weight of the truck and its cargo cannot weigh more than 26,000 pounds. This includes the weight of the fuel, driver, and any equipment on tne vehicle.
26000 increased by 30 percent =33800=26000 + (30% * 26000 )=26000 + (0.3 * 26000 )=26000 + 7800= 33800
How much payload you can haul depends on the tare (empty) weight of the vehicle. For a typical dump or box van, this could be five to seven tons of payload.
26000 lbs of cargo? A tandem straight truck, such as a flatbed or a dump, could haul that amount of weight legally.
A vehicle having or not having air brakes has no bearing on whether or not it requires a CDL. On the weight rating, New York State has a pretty unique law. While federal law permits vehicles up to 26,000 lbs. to be driven without a CDL, New York requires that an intrastate commercial use vehicle with a Gross Vehicle Weight Rating of more than 18,000 lbs. requires a CDL.