How are the RPI antennas going to be deployed without winding them up into spirals like a pinwheel?

Once the satellite is inserted into orbit, it will be spun-up so that it rotates once every 30 seconds. The wires will be reeled-out in stages, and will have small weights attachet to their tips so that centrifugal force can propell them straight out from the axis of the spacecraft, and exactly in the plane of the spacecraft's spinning. They have to be reled out at less than 15 centimeters per second, and their lengths must not differ by more than a meter at any time, or they will unbalance the satellite. The spin rate of the satellite has to be high enough at the start, so that wires can be properly deployed. The entire process will take about 33 days.

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