An air-filled or pneumatic tire is composed on an inner core that is sealed airtight and filled with pressurized air. Normally, a tread made with reinforced steel belting or other materials, seals this inner core and provides the contact part with the road.
The tire would remain inflated with all the vehicle's weight resting on it, because the air pressure inside the tire is more than atmospheric air pressure. The pressure of the air inside the tire gives resistance against forces which try to deform the tire. This gives the tire a slight degree of a cushioning effect as the tire hits bumps in the road. If you have ever taken a ride in an old-fashioned carriage which had wooden wheels, you know how huge of a difference a set of pneumatic tires makes.
Pneumatic tires also come with disadvantages. High-performance situations or highly dangerous applications for example, these tires can suffer a puncture and this would result in a complete failure. The consequence of a blowout at high speeds can result in a dangerous car crash. Military planners should take into account tires getting blown out by firing of guns or explosion shrapnel. A vehicle crew's worst nightmare is becoming trapped in a fire zone because of all of their tires becoming flat. Airless tires evidently don't suffer from these issues and therefore, could be more suitable in some applications.
The pneumatic tire may have problems as well with the variation in tire performance and air pressure. The lower pressure inside a tire may increase the comfort level and the traction. This is due to the fact that tires flatten a little and more tread is touching the road. The air pressure inside of the tire works to maintain the "up and down" stiffness as well as maintain the lateral stiffness of the tire. Thus, less air pressure allows the tires' sidewalls to flex. Unfortunately, this leads to poor handling. Within an airless tire, the stiffness in those two dimensions is independent.
Air pressure factors into other issues too. When it comes to maintaining correct air pressure, consumers are notoriously undependable. Incorrect air pressure within tires can result in very unsafe situations. It is essential to note that pneumatic tires are also prone to temperature changes, that could be responsible for changing the internal tire pressure. It is really important to consider the type of settings you will be requiring your machine to operate in so that you can check the tires regularly and keep the machine as safe as possible.