|Jan 26, 2013, 02:57 PM|
really, this gps showed right numbers quite often but sometimes it was really bad, so to me its not good enough as i dont know which numbers is right at the end..
|Jan 26, 2013, 03:23 PM|
The problem with these small GPS systems is mainly that they are not able to handle accereration above 4G.
According to Stefan Merz ( manufacturer of the SM-Logging system) this is the limit of the sensors which are obviously used in all small gps systems, so all of them will have the same problem.
Some F5d or F5b will have higher G-forces even at acceleration under power in straight line,in corners it may be higher than 35G!
If you log the hole flight as a speed graph it may be possible to sort out strange readings especially when you have also an altitude graph to compare.
Some guys in the german forum did some serious developement on software to eliminate the rubbish but it seem to require a lot of knowledge and the intention to get proper readings and not the highest possible speed to claim.
Systems which are only able to give the highest speednumbers or max altitude or average speed are simply useless.
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