enuro12

Removing the battery from my Tx for an hour fixed my problem.

JFWall

Just an update from my previous post. I received a replacement board from Helipal in the mail two days ago and that solved the rudder problem. I now have a fully functional 5#10. After installing it I did all the preflight checks and everything checked out OK. I spooled her up slowly and she just hummed along. When I got to that magic RPM number she lifted off with all the grace and beauty you would expect from such a precision machine. Hovering was perfect. Manuevering her was so easy and responsive, it was really effortless. Needless to say I am thoroughly impressed as she not only looks good but she performs great as well. In my stable of 4 heli's, I think this heli is going to end up being my favourite. Walkera did an excellent job in designing this helicopter and I congratulate them on a first rate piece of engineering.

ausaero

Just wanted post some pics of how I converted my 5#10 to a 2S setup with out having to get the RX2403 receiver.
With my new 2S setup, I'm using the Extreme 180 motors for the V3/V4 Lama.

Here's what I did:

1. Like many people here (5#10 forum), I also got to the stage where my helicopter would only fly 2 feet off the ground
on a full charge (3.7, 1000mah, 1s). That's when I tried using my 7.4, 1000mah on the 5#10.
I noticed that with 7.4v, I managed to get her flying again. However, there were major problems.
The motors overheated and it also caused my battery to swell. A few flights on, I knew I was gonna fry the rx.
And I did.

2. So went hunting at this forum for a solution. Was I going to go brushless?

3. I ended up fixing the receiver. I saw someone in youtube who changed out the mosfets on a DF4 rx.
So I took out the burnt FDS6670 mosfets and tapped the Gate-Source-Drain lines
from the board. I wanted to make an external circuit board that would house just the mosfets.
I have fabricated a pcb which uses 6 IRF 520 mosfets. 3 in parallel for each motor.
Grainy pics are attached.

She now flies way heaps better than stock.

Let me know if anyone wants more details.

Cheers

Hell-i Pilot

Hi guys,

Not sure if this is the right thread to post my newbie question, but anyway...

Just got my brand new Walkera 5#10 (w/ 2.4 tx) and done my prep work (charging, balancing, etc). Started to hover whenthe tail started to spin to the left - trimming had no effect. So I turned off rx to adjust sensitivity (as per previous posts in this thread).

When I powered back the tx/rx though, I got a second beep from the tx after the codes matching and I reaized I had lost throttle/rudder. No matter how many times I switched on/off the tx/rx, I could only get response from the right stick (ail/elev).

Could it be that my 4-1 burned out just like that? I mean, it is walkera, but I thought their electronics have improved a bit...

Any thoughts/suggestions?

Rowboat

Sorry to hear that you are having problems. I have had that problem more than once with my Walkera's. I have found with Walkera you sometimes get a good one and some times you get a bad one. It is Walkera the 4-1 RXs do burn out just like that? That is my own experience.
But stay with it might come good.

Rowboat

I forgot to say, check your gears and make sure that they are meshing ok, no slippage.

Hell-i Pilot

@Rowboat, thanks for the tip.

I ran all the usual routines, fresh battery, gears clutch, servo check (they're OK - so it must be the 4-1), batteries off the tx for an hour, "installation mode" (full throttle and rx power up - I don't even know why I need to do that for, but anyway I thought I'd rule that out as well), ... no good.

I guess my RX2410 was built for three minutes of operation... lol... this MUST be the shortest usefull life of any electronic device in the world... I guess I should've known better...

Now the question is whether I just scrap this heli or I order some spare parts... the 4-1 cost around $36 plus shipp. All in all, not a good way to start...

Rowboat

If you can send it back and get it checked out then do this first. If not buy a new one because I have had a few Rxs for the Walkera 5#10 that fail first time out of the box.
Talk to you your dealer first,Then start buying parts.

Good luck.

Hell-i Pilot

Fixed it!!!

This new 2.4 ghz tx requires to trim throttle all the way to 0% before the rx picks up the motor mix...

Time to hover now...

AZheli

I got an E-Sky Lama 4 in 1 last fall & just installed it yesterday in my 5#10 - makes a world of difference in performance & handling. Even with some older, reduced capacity 7.4v 800 MH batteries, I'm getting around 12 minutes of flight time. One negative is that when the battery drops below a certain level, it just powers down - whether in the air or idling on the ground - something that doesn't happen with the Lama v3 or v4's. Beforehand there's a slight rudder glitching/twitching, so I can hit the deck before it powers off.

Back to a long ago question: Has anyone compared the 2.4 GHz with the FM versions of 5#10? Any significant handling differences between the 2?

sicheli

Also resurrecting an old aspect of this thread, is anyone running this battery? It's the 1550 mAh 3.7V. I would love a few more minutes of fly time.

Tedstrickland

My Feedback: (1)

Sicheli,

I bought several 3.7V 1500 mAH lipo from Jason at Max Amps. They worked OK, but the problem is that the 5#10 is almost at it's max power with OEM weight, using the stock short-can 180PH motors. I really like the 5#10 (I have about a half-dozen of them), a/w/a CX2 and CX3. Like Crush, I have tried numerous combinations of 4in1, motors brushless., etc. By the time you upgrade the LG (I use Gaui 200 LG & Walkera 53 series on 5#10), and a few other minor upgrades like conopy, tail boom supports, Xtreme tail, etc, plus the extra weight of the 1500 mAH battery, you get a sluggish 5#10. The other problem is that 5#10 has the rear motor facing downward (as compared to the ESKY and EFlite brds), which limits your ability to play with CG when using larger batteries.

The stock 5#10 works very well if you get some of the newer 3.7V 1200mAh 18-20C batteries, like the Raiden batteries available for $6 each, especially if you upgrade the connectors (either Dean's Micro or SpeedMind GW050BK). JST's just don't cut it......

Do not use 2S 7.4V lipo with stock 2401/2410/2411 4in1, unless you like the smell of smoke

If you change the 4in1 to either the Esky unit or the EFlite unit, the one problem you will face is overdriving the 3.7V servos. They will work, but you can clearly see that that they are "chattering" as the voltage is a bit to much for them. Both the Esky unit and the Eflite units work very well.....and at 7.4V, you would have a 10-12 min flight time....if the servos last that long..... You could also build or look for 2S to 1S voltage regulator to cut power to the servos or you could look for a 2S microservo to replace the OEM servo and swap to 4in1...I have not done this. Maybe the EFlite S60 or Esky Digital 0508, but I think they are a bit too big to mount in the 5#10.


If you put taller landing gear on 5#10, you could use the longer can motors 180, like those from Esky, Eflite or Xtreme.

CJ has (or had - haven't checked lately) a complete brushless set-up for the 5#10, with a built-in voltage regulator, which reduced the voltage from the ESC's to 3.7/4.2 so you could use the Walkera OEM 4in1, but at $80 a bit pricey...but you'll probably never change motors again.....

My recommendation, after all this..... use stock 5#10 with a good quality 20C+ battery and upgraded connectors, or go to the brushless set-up......

FWIW, Ted

sicheli

Thanks for the great post Ted. That's a lot of 5#10s!
How do the connectors play a role? I am not familiar with that.

Tedstrickland

My Feedback: (1)

The conectors become critical as the curent starts to flow. Think of it as a "kink" in the garden hose of current flow. JST's do not transmit current well, and at 3.7 V (1S lipo), you are using current flow instead of voltage. Power = voltage x current....... so with a lower voltage, more current is needed. At 7.4V (2S) less current is needed to achelve the same total power from your bird.....as the volage potential is higher.....

Search the site for Micro Dean's....lots of discussion on this. Very popular with the 4#3B/4#3Q/CB100/4G3 discussions......

Happy Flying.....Ted

Hell-i Pilot

Hmmm... interesting post. Never thought that a poor quality connector could affect performance that much. I will convert a couple of my JST-plug lipos and see if there is really that much of a difference.

Crushalot

It's been a while and I have sold this heli but I still field questions about it so I thought I would post a review on the 5#10 2S BL conversion:

[youtube]http://www.youtube.com/watch?v=hhNyhGy4fGQ[/youtube]

It's an older model, but you can still have tons of fun with it.

Crush