While landing, which type of tyres are commonly used on modern aircraft?

Introduction / Context:
Aircraft tyres must withstand extreme conditions during take off and landing, including very high loads, rapid acceleration and deceleration, and significant temperature changes. The design of these tyres is different from ordinary car or bicycle tyres and is optimised for safety and reliability. This question asks which general type of tyre construction is commonly used on modern aircraft during landing. Understanding this helps connect basic physics and engineering concepts to real world applications in aviation.

Given Data / Assumptions:

• The options mention various descriptive terms, including water tubed, thick tubed, tubeless, and thin tubed tyres.
• We assume modern commercial and many military aircraft landing gear.
• The question focuses on general tyre type rather than brand or detailed technical specifications.
• Standard aviation engineering practices are assumed.

Concept / Approach:
Tyres can be classified broadly into tube type and tubeless type. In tube type tyres, an inner tube holds the air, while in tubeless tyres, the air is contained directly between the tyre and the rim. Modern aircraft tyres are typically designed as high pressure, tubeless tyres to reduce weight, simplify maintenance, and improve safety by reducing the risk of sudden tube failure. The other options are either not standard categories or are vague descriptions. The correct approach is to recall that tubeless construction is widely used for heavy duty applications like aircraft and many modern vehicles.

Step-by-Step Solution:
Step 1: Note that water tubed tyres are not a recognised standard category in aviation design and thus are unlikely to be correct. Step 2: Recognise that terms like thick tubed and thin tubed describe the inner tube but do not reflect standard engineering categories used in aircraft manuals. Step 3: Recall that many modern heavy vehicles, including aircraft and large trucks, commonly use tubeless tyres because they are robust and easier to maintain. Step 4: Understand that aircraft tyres are subjected to high speeds and loads during landing and benefit from tubeless designs that reduce the risk of sudden blowouts caused by tube pinching or failure. Step 5: Conclude that tubeless tyres is the correct general type of tyre construction used on modern aircraft during landing.

Verification / Alternative check:
If you check basic aircraft maintenance references or engineering summaries, you will find that modern jet airliners and many other aircraft use specially designed high pressure tubeless tyres. These tyres are often used with multi piece rims and incorporate safety features such as fused plugs to prevent overpressure. Tube type tyres may still exist in some older or very small aircraft, but they are not the standard for modern high speed landings. Since the question asks in general about what type of tyres are used while landing and the only realistic engineering category listed is tubeless, this cross check supports our answer.

Why Other Options Are Wrong:
Water tubed tyres is not a standard engineering term and does not describe any recognised aircraft tyre type, so this option is incorrect.
Thick tubed tyres simply suggests a tyre with a thick inner tube, but does not match a standard category used in aviation. In addition, inner tubes are often avoided in modern high performance applications, so this option is misleading.
Thin tubed tyres similarly lack a clear engineering definition for aircraft use and do not reflect the current preference for tubeless construction, so this option is also incorrect.

Common Pitfalls:
Students may be tempted to choose options that mention tubes because they associate older bicycle or car tyre designs with all vehicles. Others might guess that thicker tubes must be safer and therefore used in aircraft. Another pitfall is not recognising that some distractor options are not real technical terms at all. To avoid these mistakes, remember that modern engineering often favours tubeless designs in high speed, high load applications such as aircraft landing gear and many heavy road vehicles.

Final Answer:
While landing, modern aircraft commonly use tubeless tyres.