A positioning system, device, and method are provided to facilitate the in-flight positioning of two aircraft relative to one another such that a second aircraft is guided to an in-flight refueling position relative to a first aircraft. The male and female motors are provided within the compressor main body. An overhead stream from a first distillation column is decanted into two liquid phases. To fabricate a first set of microlenses, a first set of microlens material is patterned onto a support, reflowed under first reflow conditions, and cured. Because a cross section of said shaft is different from the cross section of the hole in the battery compartment, the shaft is connected to the hole in the battery compartment only at a number of points. Additionally, the watercraft can include a handlebar cover that is configured to prevent water from entering a steering mechanism.