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Blade 400 › 3D lost of power and collectif does dums things
04-04-2009 12:42 AM  9 years agoPost 1
Squarely Deadly

rrNovice

Baie St-Paul, Québec, Canada

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First time i discover this i was making my blade tracking and when
i give throttle the collectif go down and the motor don't reacts....i play with the stick and all works well.
I flight my Blade a few times and all seems to be ok but the two
last flights the heli lost power at only 1 or 2 minutes of the battery back.I got 3 of them and i didn t look if it s the same pack the 2 flights.When my heli falls down i give progressively throttle to
slow it down and it s seems to have no effects.It don t crash and landing correctely.....i wait a few second and bring it back in the air with no problems....ESC? MOTOR? RECEIVER?

Help me please

oups...i did it again!

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04-06-2009 12:22 AM  9 years agoPost 2
supra6

rrApprentice

Singapore

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Stock Blade? No upgraded servos or gyro?
Ok let's see, you said you have 3 batteries, were they all charged prior to your session, I have been known to try to fly on a battery that I thought I had charged the night before.
http://www.hobbycity.com/hobbycity/...ry_Monitor_2-6S
This helps for checking batteries before and after a flight.
Also after flight are you keeping an eye on the amount of mah's are being put back into the batteries, you don't want to drain them past 80% capacity, stock Eflite charger will not tell you this.

Have you done any adjustments on the drivetrain, possible that the belt is to tight or the gear meash to tight, either will cause excessive drain on the battery reducing it's longivety or cause heat bildup causing an overtemp in the esc. Is the esc hot to the touch when this happens, hold your fingure on it for 5 sec and only minor irritation?

Are you allowing cool down time between flights, it sounds as though you are hitting one of the cut-offs either low-voltage or over-temp. If you fly successive batteries and have no trouble till the last I would suspect it's the temp issue. This can becaused buy the above drivetrain issues, not allowing cool down between flights, or yes a bad esc. In reality Eflite stuff is pretty good and they stand behind their products. There have been complaints about the esc but I think for the vast majority of units out there problems do not happen untill people start upgrading components beyond the esc's capability. In stock form it should be good.

I would tend to rule out TX/RX problems as you say that after this happened shortly after you could fly and it would happen again, the way to check is to look at the RX when this happens, if the led is blinking that means you had an intruption in the signal from the TX to the RX. This is called a brownout and is the result of low voltage geting to the rx through the esc (actually the bec porition of he esc) when this happens the rx goes to the failsafe mode untill the signal is restored, so the question here is led flashing?

Raeding through the forums you have most likely gotten the idea Eflite stuff is marginal at beast, IMO I don't think so. You've heard of the need to upgrade everything, resit this and upgrade in steps.

ESC issues develope when you start to put in better servos and gyro, they cause more of a load on the ESC/BEC which causes other reactionary problems. The cure is a better ESC and a seperate BEC.

Ok well I have gone long winded to much, you have a few things to look at, LOOK at them ALL before you go out and start putting out cash, spend in a logical way and you'll end up loving your Blade.

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04-06-2009 02:23 AM  9 years agoPost 3
Squarely Deadly

rrNovice

Baie St-Paul, Québec, Canada

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think that you got it!
1:Thanks supra6
2:i already love my Blade 400
3:My life: spend 45 years of my life and then bought a Blade 400 last fall.
15 flyes (almost always hovering) and 3 wonderfull crash.
Loose my girl friend and my free times with Realflight G4.5 all
winter long.THEN UPGRADE my gyro for a 401,my tail servo JR3400 and my cyclic servo (HS-65mg Hitec)for Christmas......and then start a new season of RC helicopter when cold go away.You're certainly right with the ESC.Can you tell me what ESC can i buy for don't bake my motor.
I know that i need a better charger and i also gonna buy soon the
monitor for my battery pack but i will start with the ESC.

Thanks so much for your time, sorry for my english and please go on Youtube see my videos (craps i know but only 12 flyes this season).
Simulator paid well.
Search for Zelig223 on youtube.
Thanks again.

oups...i did it again!

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04-06-2009 03:01 AM  9 years agoPost 4
supra6

rrApprentice

Singapore

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Well here we go, keep in mind there is a disclaimer for all this, I in no way endorse the supplier or vendor these are just a sample of what is out there.

For ESC's Align, Hobbywing, Trunigy and Castle Creations are all good and have programable functions to suit your style. Align and Castle seem to be a bit more expensive but have a good rep. Hobbywing and Trunigy seem to be good from what I have read and are on the cheaper side. I would think that a 30A rating would be quite adequate, I personally have the Align 35g but beacuse I got it at a good price, if doing it over at the advertised price I think I'd be looking at the Trunigy.

http://www.helidirect.com/align-35a...bl35g-p-200.hdx

http://www.hobbycity.com/hobbycity/...peed_Controller

http://www.hooobby.com/hobbywing-pentium-30a-esc.html

BEC's
Personaly I would not run a Blade sized or larger with out a BEC.
Most of the above ESC's have a built in BEC but the BEC in the ESC will contribute to heat build up in the ESC and if you loose the ESC you loose your servo and RX control, I think of it as cheap insurance.
There are two types, witching more efficent and no large heat buildup but more expensive, Linear cheaper and runs hotter and less efficent.

http://www.v2heli.com/mpr1005.html

http://www.v2heli.com/c-ubec-5a-v1.html

Again look around and check for pricing, all the forums have subtopics on both ESC's and BEC's. Did you find any issues from the previous post?

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04-06-2009 04:07 PM  9 years agoPost 5
bryfly53

rrNovice

Battle Ground, Indiana

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Just out of curiosity, how would a separate BEC be connected, assuming that I have the standard ESC with the BEC already included, with servos connected to the receiver, etc. Thanks.

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04-06-2009 04:38 PM  9 years agoPost 6
supra6

rrApprentice

Singapore

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Ok this may be long but hee gose? Dose your bec have 2 wires or 3? if 2 then remove them from the attaced connector and put the pins into the unused spots on the gyro sense plug, the plug off the gyro that has just one wire, on the esc connection to the rx remove the +/- pins, seperate the wire abit and tape or heat shrink then back into the loom so the will NEVER touch and reconnect the esc plug. Easier to cut off the pins at different lenghts and cover with heat shrink.
Got 3 wires off the bec? Ok splice the sense wire off the esc to the sense wire on the bec, cut bak the +/- off the esc and shrink them into that wire group so the will NEVER touch and plug the bec cable into the rx in the esc position.
The +/- pins on the rx are a common bus the olny thing different in the various positions is the sense wire, that's what sends the signal to the applicable unit for the commands.
Thai may be a bit of work but it leaves the bind position open all the time for binding when needed.
2 other ways, connect the bec and the esc with a Y connector but then you have a mess of wire to contend with.
Second depin the + off the esc and tape it back out of harms way and plug in the bec to the bind port, but then when you go to bind you have to remove the bec plug, put it in the gyro gain slot and install the bind plug, when your done binding you have to put all that crapback together, I'd rather do the job once and make it look neeeaaat

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04-07-2009 03:14 PM  9 years agoPost 7
Squarely Deadly

rrNovice

Baie St-Paul, Québec, Canada

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ESC and Trex 500
Thanks again supra6.
My next step it's a Trex 500 and i try to buy pieces that can follow
me in my up-grade.My GY401 gyro and my JR3400 can do the job and it will be a good news for me if the ESC Align that you proposed to me can make the step.
Have a good day and good fly!

oups...i did it again!

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04-07-2009 03:41 PM  9 years agoPost 8
bryfly53

rrNovice

Battle Ground, Indiana

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Thanks supra for the info!

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04-07-2009 06:34 PM  9 years agoPost 9
supra6

rrApprentice

Singapore

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If you are serious about the 500 look at the esc requirements for that, not sure but i would think 35amp might be a bit low for that and you can fit something bigger in the Blade. However I think most will agree we start this with the idea of floging off the Blade when we go bigger or better and move the electroincs over. In reality most end up keeping the Blade and also getting the next heli, what the heck we've already spent the money and it's flying nice, and I can use the Blade to try new stuff on, and so on, and so on. Point is you are hooked! Been there, done that, and the t shirt for it.

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