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Re: [Paparazzi-devel] cannot reach 100% throttle on takeoff

From: Joseph Muhlhausen
Subject: Re: [Paparazzi-devel] cannot reach 100% throttle on takeoff
Date: Thu, 6 Aug 2015 10:16:24 -0400

I see, I have 4S batteries with a nominal voltage of 14.8 and fully charged they are about 16.8V. If I understand well it means that the current does not drop enough to reach 14.8V. I'll see if there is a more elegant way to fix it.


On Thu, Aug 6, 2015 at 4:58 AM, Tobias <address@hidden> wrote:
Hi Joseph,

could you check if you have defined:
    <define name="POWER_CTL_BAT_NOMINAL" value="11.1" unit="volt"/>
if so, you probably have a slightly higher voltage than 11.1V on takeoff - leading to an reduced takeoff power to match the thrust you would get at 11.1V.
You could just delete it, but be aware that 100% throttle than has different thrust values depending on your input voltage…
This is usually not a big problem but not the nicest way to do it.

cheers Tobi

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