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T-REX 550 › Talon 90 BEC, 1 lead!
03-12-2015 11:37 AM  3 years agoPost 1
Richardmid1

rrProfessor

Leeds, England

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So im thinking of getting a Trex 550L. The specs on the BEC are great but only one lead going to the RX?! I thought 1 servo plug was only good for 3A continuous??

Anyone browned one out doing the pitch pump bench test?

60% of the time, it works every time!

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03-12-2015 01:11 PM  3 years agoPost 2
dkshema

rrMaster

Cedar Rapids, IA

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Servo connector pins are good for up to 5 amps, not 3.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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03-12-2015 02:18 PM  3 years agoPost 3
Richardmid1

rrProfessor

Leeds, England

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Continuous?

60% of the time, it works every time!

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03-13-2015 04:07 AM  3 years agoPost 4
dkshema

rrMaster

Cedar Rapids, IA

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Have done some digging. Yes, 5 amps continuous, maximum.

I think the connector has about 20 milliohms of contact resistance from some of the digging I've done.

20 milliohms, 5 amps, V * I = 0.1 volt drop across the contact.

At 5 amps, I * I * R = 5 * 5 * 0.02 = 0.5 watts

-----

And to answer your question -- I've seen lots of stuff posted regarding the Talon 90, Brownouts haven't been a major topic of discussion.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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03-13-2015 08:46 AM  3 years agoPost 5
Richardmid1

rrProfessor

Leeds, England

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Thanks Dave.

60% of the time, it works every time!

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03-13-2015 11:37 AM  3 years agoPost 6
Climax

rrVeteran

West London, United Kingdom

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It wouldn't have hurt them to have added an optional port that you could use to balance the load and provide some redundancy!

Electronics, Physics, Helicopters, Fixing Things...

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T-REX 550 › Talon 90 BEC, 1 lead!
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