Advice

[danb46]

Hi all,

This is my first post, so please excuse me...

I have been reading about Ailerons etc. and after having my Cub for 2 years I feel this is the next thing to do so I have ordered servos etc. I have ordered 2 and a Y-lead as after reading I think this is the best option.

My question is that after reading about the dreaded 'Brown Outs' I feel that I could take the risk, but I want to do this properly... so would these be OK?

www.hobbyking.com/hobbyking/store/__6468__Turnigy_30A_BRUSHED_ESC.html
and
www.hobbyking.com/hobbyking/store/__37235__OrangeRx_R615_Spektrum_JR_DSM2_Compatible_6Ch_2_4Ghz_Receiver_UK_Warehouse_.html

The RX is currently out of stock (I live in the UK) but these should be back in stock soon? I have the stock motor and have read about BEC's do I need one of these?

What else do I need? I have everything I need for the aileron build and I am looking forward to it...

Many thanks in advance, and a happy new year to you all!
Dan

[toff]

Hi Dan, the 30A turnigy esc is fine, and has the BEC built in. As for the RX, don't bother with HobbyKing, soon as they're in stock, resellers buy them all. Try this seller: www.ebay.co.uk/itm/New-Orange-615-Rx-2-4g-6-Ch-Plane-Heli-/261349533419?pt=UK_ToysGames_RadioControlled_JN&hash=item3cd9a566eb it's not much more, and he delivers fast (ps: it's not me! I have bought a few from him, though. Which radio set are you using? I'm presuming the DX5e, which will work fine.

[danb46]

Hi,

Thanks for the reply!

OK I will have a look at this then, I am currently using the DX4e (it came with the plane) but in future I hope to invest in a TX with more channels, but for now as the SC is the only plane in my hangar it does the trick, is this still compatible?

Thanks
Dan

[flydiver]

Doesn't the current stock ESC/RX have the capability of doing this directly? Move the rudder if possible and plug the ailerons into the old rudder slot.
I've never seen it as mine are still WAY back in the 27MHz days. I only had a single stick, and a slider for throttle.

If yours has been going all this time I figure it must be one of the 'good ones' and probably no worse than the 1A BEC of the ESC you linked to.

Assuming you are going to flatten the wing you may want a carbon rod to reinforce it after.

[danb46]

Hi,

Thanks for the reply, I had a look the other day and it is possible...but after reading about the Spektrum brown outs I have ordered a new one anyway, I am looking to start a build soon anyway so they wont go to waste/ have a parkzone spitfire IIB so may look at converting that to 2.4Ghz

Thanks for the replies

Have a good year!
Dan

[flydiver]

Brown out have to do with the capability of the BEC, the number quality and amp draw of the servos, and the capability and voltage of the battery to supply power. ANY of those can cause the problem. Of course the underlying problem is Spektrum itself.

We know the one you ordered has a 1A BEC. That's pretty small for 3S and 4 servos, probably OK for 3S and 3 servos. Cheap servos like the HXT 9gm or nearly identical TowerPro 9gm have a relatively large power draw for their small size. That said they are otherwise pretty good servos. I use them a lot.

We don't know WHAT the HZ BEC is, and Horizon won't tell, so that's a crap shoot. I'd guess it's also 1A, but, that's a guess.

Note-newer pilots tend to focus on the Amp draw of the ESC. That's important but not the part causing the Brown Out issue. That is the BEC side. The BEC provides the power for the servos and the RX. Should that fail to do it's job....bad things happen > no RX, no servo control.
If the ESC side fails (simple failure) then you just lose throttle, no big deal if you can dead stick in and are in a position to do it.

[danb46]

OK well the bits I have ordered won't go to waste as I am sure I will use them eventually if not now... looking forward to everything arriving so I can craxk on amd then hope that the awful weather we have at the moment passes and leave nice flying weather!

Thanks for your help :-)

Dan

[toff]

www.hobbyking.co.uk/hobbyking/store/__15205__Hobby_King_30A_ESC_3A_UBEC.html slightly better esc from the same place.

[flydiver]

Jan 4, 2014 9:47:15 GMT 1 toff said:

www.hobbyking.co.uk/hobbyking/store/__15205__Hobby_King_30A_ESC_3A_UBEC.html slightly better esc from the same place.

Well, yes better, but brushless. Fine if the OP is going to swap out the motor too, which toff will probably recommend.

[toff]

Oops! My bad! Well spotted, fly! Never even noticed brushless...... And no, I'd say leave it brushed for now. If memory serves I didn't do the brushless upgrade until the motor burnt out - roughly a year of 3s lipo flying. I did the RX/esc swapout first, then the aileron ( twin servos, separate channels), then I did the brushless motor last - 1300kv beast on a 9x6...last time I flew it, it was still ballistic!

[danb46]

Thanks for the replies...

I was planning on keeping it brushed for now and then seeing how things go :-) I want to use the cub as a trainer with ailerons so I can progress but also enjoy flying it so may look to swap later!

Thanks again!

Dan

[danb46]

1 more bit of advice needed...

Whats the best way to connect the motor to the ESC? I am using E3C connectors for battery, and have read about 3.5 bullet connectors but jsut want a bit of advice?

thanks!
Dan

[kenninny]

I happen to like the EC3 connector I have them in all my planes, even when I buy another plane I change the
connector to EC3, they are easy to solder, and I believe they are 3.5 bullet connectors

[danb46]

OK am I able to join the motor to esc using these then? Or do I take out the cconnector and use them on their own... no blue part and heat shrink it?

Also I am guessing I do not uae the rudder if uaing 2 servos as that would bw 4 or would this be OK?

Thanks
Dan

[flydiver]

EC3 are 3.5mm bullets in the plastic housing. You can buy bare 3.5mm bullets and they are kind of a 'standard' connection for ESC>Motor. You could tear an EC3 apart but why waste it? For a brushed connection you could use it as is.
Bullets need to be covered with shrink on both sides so no brass is showing when connected.
You can also solder directly. Make SURE you get the motor direction correct first. Same if you use an EC3 since it will only connect one way.

Aileron + rudder: You can do it either way. On a flat wing aileron Cub the Rudder is mostly only of use on take-off and landing. You won't know how to use your left thumb/rudder for awhile anyway. In reality you will only be using a couple servos at a time so the BEC should be able to handle that.