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HsF-00 is a giant supersonic fighter plane measuring about 80m in length first introduced in Volume 20. It is capable of moving at a top speed of over 7000 km/h, as well as doing ridiculous things such as flying sideways or spinning like a top. Although the plane is capable of surviving these extreme movements, the pilot cannot. To remedy this problem, the pilot is frozen at -70 degrees Celsius, and there are machines hooked up to the pilots vital organs to preserve life. The computation abilities of the pilots are also enhanced by machines (similar to Accelerator) in order to compensate for the extreme temperatures.