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Tarbosaurus 450 - maintenance blog

Posted 06-10-2009 at 01:46 AM by nasukaren
Updated 06-10-2009 at 12:58 PM by nasukaren

Received my new Scorpion 2221-8 Mark II (3595 kV) motor for the Tarbo. Replaced the existing DealExtreme HB2835-H 3800K with it.

Old:
3800 kV * 10T / 150T * 11V = 2800 rpm

New
3595 kV * 11T / 150T * 11V = 2900 rpm

So my overall headspeed should increase slightly. I'll post my EagleTree logs when they come in.

I should also mentioned that I disabled the built-in 3A BEC on my Turnigy Plush 40A and put in a separate BEC / voltage limiter. The new BEC is 3A nominal 5A max. The reasons I'm going separate are:

1) Cooler running ESC -- my ESC was getting warm
2) 6 volts rather than 5 volts
3) More peak amps, less chance of the servos stalling.
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