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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsAlign 3G › 3G Performance/Tail Kick vs Batt voltage
04-02-2010 03:34 PM  10 years ago
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Sterling500

rrApprentice

San Jose, CA 95132

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3G Performance/Tail Kick vs Batt voltage
Just some info that I collected that the field last weekend.

Background:

I converted my 700 to 3G with the normal Align 2:1 regulator. Besides all the normal speed increase power etc that everyone loves, I noticed a huge increase in battery consumption. I used to get 3-4 flights on a 1900 MAH pack with no issue but now after 2 flights the pack is very low. I started to notice that on the end of the second flight the tail would start to kick. So much so that I got very worried about running out of battery so limited myself to only one flight with this pack.

I picked up some 2600mAH packs and the 2.4G wireless battery monitor from HobbyKing.

After some flights I came to the conclusion that my bird with my style consumes around 630mA per flight. After 6 flights on two 2600 packs I had to put 1900ma back in both.

What was interesting is that on once the cell voltage gets down to <3.8V (7.6V Total) the tail starts to kick. I verified this with the battery monitor. Not sure if the 2:1 is cutting out with high current or if the 3G is very sensitive to low voltage.

So for me I now am very "VERY" careful to make sure the battery voltage is high before I even attempt to fly. I will always fly with the battery monitor installed until I get a handle on this.
Go Fly
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04-02-2010 05:27 PM  10 years ago
blucido

rrApprentice

Plano,Texas

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SHORTER FIGHT TIME AND TAIL TWITCH WITH 3G
tHANKS FOR THIS INFO, I JUST POSTED A TAIL WAG PROBLEM IN THE FLYBARLESS SECTION ABOUT MY 600 JUST AFTER I CONVERTED IT TO THE 3G SET UP. i'M FLYING THE 1900 PACK AND I ONLY GET TWO 8.5 MINUTE FLIGHTS BEFORE MY YELLOW LIGHTS ARE ON.USE TO GET SAY 4 TO 5 FLIGHTS??? I'LL SEE IF MY TAIL TWITCHING PROBLEM RESOLVES WITH A FULLY CHARGED BATTERY? iDON'T THINK SO BECAUSE IT IT WAS ALMOST 100% YESTURDAY AND STILL TWITCHED ON iDLE UP 1&2 NOT SO MUCH ON NORMAL MODE!IS THERE A WAY TO TURN THE GAIN DOWN ON THE GYRO ITSELF,I'VE TRIED TRHE RADIO GAIN DOWN TO 30% DOESN'T SEEM TO AFFECT ANYTHING.
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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsAlign 3G › 3G Performance/Tail Kick vs Batt voltage
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