Hi all,

I have a project where I am considering using a small GPS module to
determine the maximum altitude of a model rocket. Looking at the
typical limitations of consumer-grade GPS modules, they often are
limited to 2 or 4G acceleration. I have not been able to find out what
happens if you exceed that acceleration. I would guess that they lose
lock on the GPS satellites and will reacquire lock after the
acceleration goes below the limit. However, how long does it take for
them to recover from the excessive acceleration?

For example, in the model rocket, there might be 20 or 30G
acceleration for 2 seconds and then a further 5 seconds before apogee.
My project will work if the GPS unit reacquires a fix within 5 seconds
of the rocket motor burn ending.

Any thoughts?

Thanks,

Sean
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