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ProModeler Scorpion Power
HelicopterMain Discussion › throttle setting recommendation
04-21-2017 03:22 PM  4 months agoPost 21
Richardmid1

rrProfessor

Leeds, England

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So you are recommending to ignore max settings recommended by a team of engineers that designed the product?
Yes.

You can go as high as you like, 100% throttle is 100% throttle and the throttle % they give is what the system will TRY to put out NEAR THE END OF A FLIGHT. As long as you stay below say 105% on THEIR throttle output scale it will govern fine albeit a slight drop in rpm at the end of the flight which you probably won't notice. It is far more efficient that way. The way they have you gear your heli is way overboard, most people already know this. Try it yourself before replying.

Yes if you want zero drop in HS right to the end of a flight even when pushing hard by all means over gear your heli but your going to kill packs, heat up ESC's drastically and loose flight time.

60% of the time, it works every time!

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04-21-2017 06:14 PM  4 months agoPost 22
EEngineer

Elite Veteran

TX

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"when sized properly"

Sometimes it's hard to find a MOSFET like that.

Depends on cost whether what's used.

What I like about active freewheeling ESCs(like a Kontronik) is that one doesn't have to know the motor freq......the ESC has the ability to determine the ideal timing for the motor.

Neat stuff.....

Logo 600SXs, 700XX, 800XX

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04-21-2017 09:24 PM  4 months agoPost 23
AirWolfRC

rrProfessor

42½ N, 83½ W

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Freewheeling ? - - let me see a schematic and I'll tell you what it is.

Motor frequency needs to be known, otherwise how is the ESC suppose to know when to turn on the phases ? Controllers without hall position sensors use position sensing through the power leads.

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04-21-2017 09:43 PM  4 months agoPost 24
EEngineer

Elite Veteran

TX

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"Freewheeling "

Just part of the system...yes sensors are needed to measure the back EMF for motor timing, etc.

Don't have a Kon schematic....

Show me yours....and we can talk about it...

Maybe on a different thread, though...

Logo 600SXs, 700XX, 800XX

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ProModeler Scorpion Power
HelicopterMain Discussion › throttle setting recommendation
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