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This GPS will be used for measuring the speed, position, and altitude of the rocket in flight. Its signal will be sent to the rocket computer to be relayed by radio to the ground computer. It may also be used to guide the rocket on a parasail back to the launch point coordinates for retrieval.
x,y,z position, x,y,z velocity and time is read by the computer using standard NMEA interface.
Supplier of these GPS boards.
There is an 18000 meter and 515m/s limitation with most GPS units including this one. When the rocket is above 18000 meters (~60,000 ft) in altitude and traveling faster than 515m/s (~1100 miles/hour or 1854 km/h) the GPS will not output valid data. The GPS will work in all other cases, for example it can be above 18000 meters as long as it isn't going faster than 515m/s, and it can be going faster than 515m/s as long as it isn't above 18000 meters. As long as the rocket is traveling slower than 515m/s at apogee the GPS will work no matter how high it has gone, and all the way down until landing the GPS will work unless the rocket goes faster than 515m/s towards earth.
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