Garmin fortrex 301 gps reading's ?

[Andris Golts]

Hi all i have run my 4s powered JAE all summer with gps readings of 58-60 mph last week after 1 run i check the gps it shows 64.6 mph i changed nothing on the boat and the blue Turnigy lipo's have about 35 cycles on them. How would the 4-6 mph speed be explained ? Regards Andris Golts.

[Raydee]

Are you just doing one straight run and bringing it back in? I have had crazy ( more that 10mph ) gosh readings in the past that I just dismiss. A hop in a turn where the boat and prop come out of the water can cause a sudden acceleration and throw off the reading.

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[Andris Golts]

Hi Raydee im running ovals for about 2 minutes and the water was pretty choppy . Thanks for your reply. Regards Andris Golts.

[Luck as a Constant]

water conditions can affect stuff for sure. water with some slight chop is faster than smooth water in my experience.

[grsboats]

Best way to verify the accuracy of your readings is repeat some passes on flat water and see the results......I've been using a Stalker radar to compare gps readings and some times there is a difference of 5 mphs so I do not bother with gosh readings as all of this is to have an idea of how my boat performs. Gill

[Speedfreek]

I have three 301's and they all show the same mph very accurate, there my favourite gps and the batteries last a long time before another charge

[Prodrvr]

Best way to verify the accuracy of your readings is repeat some passes on flat water and see the results......I've been using a Stalker radar to compare gps readings and some times there is a difference of 5 mphs so I do not bother with gosh readings as all of this is to have an idea of how my boat performs. Gill

I was looking into a Stalker 2 radar gun, until I seen the price. I'll roll the dice with the Garmin Edge 20.