F35 maintenance includes regular inspection and replacement of parts to ensure proper operation and extend service life. In addition, the F35's fuselage and engine need to be cleaned and maintained regularly to keep it in good flying condition.
As for the parameters of the F35, it is a fifth-generation fighter with a high stealth design, advanced electronic systems and a certain supersonic cruise capability. The F-35 has a combat radius of more than 1,000 miles and a top speed of 1,200 miles per hour.
The F35 has many advantages and disadvantages, and its application areas are also very wide.
In terms of advantages, the F35 has advanced stealth technology and advanced electronic warfare system, making it more survivable on the battlefield. In addition, the F35 also has high maneuverability and strong electronic reconnaissance, jamming and countermeasures capabilities, giving it an advantage in air combat.

However, the F35 also has some drawbacks. First, it's relatively slow, with a top speed of just Mach 1.6, which could put it at a disadvantage against high-speed fighters. Second, the maneuverability of the F35 is also an issue.

As for application areas, the F35 can be used in many fields. First, it is an air superiority fighter that can be used to carry out air combat missions such as interception, reconnaissance, and striking enemy targets. Second, the F35 can also be used as an electronic warfare aircraft, performing electronic reconnaissance, jamming and countermeasures missions. In addition, the F35 can also be used to carry out anti-submarine, anti-ship and other missions.

In short, the F35 is an advanced fifth-generation fighter with a wide range of applications. However, it also has some shortcomings, which need to be continuously improved and perfected in the future development.