Radio gear recommendation for aileron mod.

[helltrix]

So I didn't realize when I got my SC that it didn't have ailerons. I'm kind of a purist and was intending to start my flight with this.

I took my SC up last weekend for a few minutes, got off to a rough flight and was doing well despite not having as much control as I thought I would have had. A nice gust of wind pushed me many yards off course to an eventual rough landing. I managed to dodge a tree and put it down in some grass, but it was clear to me I couldn't make the turn back into the wind with just rudder steering. Upon a second flight while coming in for a landing another nice gust of wind forced the plane to a hard landing in the grass and it flipped upside down breaking the tail off. Little bit of fiberglass and some epoxy and its stronger than new.

Anyway to my point. I would like to do my aileron mod as soon as possible. But I would like recommendations for the radio I should get. Do I get a 4 or 5 channel? I don't need flaps for takeoff/landing so I assume a 4 channel would be sufficient? I would like to keep the rudder control and the elevators.

I don't need any fancy spread spectrum radio gear just an inexpensive radio that's not junk cheap. I'll need to get all new servos and ESC for the stock motor. So a radio with that is compatible with some decent servos would be nice..

Thanks for any recommendations.

[helltrix]

I recommend the DX6i DM2 transmitter and matching 6200 receiver with four hs-55 micro servos.

Ewps, I answered my own question..

Just trying to find into on how to replace the brushed motor with brushless so I can install that with my aileron mods. The local hobby shop guy is really interested in the work I'm doing to my cub.

[ginginho]

Jun 4, 2009 7:27:27 GMT 1 helltrix said:

I recommend the DX6i DM2 transmitter and matching 6200 receiver with four hs-55 micro servos.

Ewps, I answered my own question..

Just trying to find into on how to replace the brushed motor with brushless so I can install that with my aileron mods. The local hobby shop guy is really interested in the work I'm doing to my cub.

I use that radio set up with cheapo 9gram servos. One thing to bear in mind with your servos and selected ESC, is the possibility of brown-outs due to the draw from four servos. Although it's unlikely that a 2Amp BEC ESC won't be able to handle this, it may need testing with the servos of choice. Flydiver has also suggested in the past that a switch mode BEC is a little better than a linear. Generally, the larger the ESC, the better output the BEC will be. An alternative is to spend a little more and use a dedicated BEC (UBEC), this is dedicated to supplying power to the Rx. If you go this route, remember to disconnect the red wire from the ESC connection to the Rx, otherwise the two BECs (ESC and UBEC) will both try to do the same job.

As for replacing your motor, there are many different mods that people have done and posted on here with regards to the motor mount. To ease your CoG setup, you'll want to get it quite a way out front as the B/L is going to be lighter than the stock.

[mrmugen]

I wouldn't recommend a DX??? to anyone personally. Some have had good luck but it's the few that loose planes all together that gets me. If your not flying around a bunch of others or possible interference I'd say go the 72mhz route. Esp. if price is a factor. A higher end 72mhz radio is the same price as an entry level 2.4 system. Just my opinion of course....I have seen too many people loose planes to DX??? Just 2 weeks ago a fellow club member lost all control of his DHC Beaver on his DX7. Brown out is all we can figure but still fuzzy. He had a seperate bec and still lost all control of it. I guess since I spent 14 hours building it for him, I get a little extra touchy about it. He is a good pilot and has logged over 500 flight hours. All in all I guess I would wait until horizon fixes their products properly. Sure they will send you a new one (radio) but what good is that? Just my opinion.

Kevin

[flydiver]

If you want cheap, you probably need to go 72MHz. There are a raft of them that would do the job.
You might want to read this:
www.wattflyer.com/forums/showthread.php?t=4454

Some folks have advocated a really cheap 2.4 unit hobby city sells. No experience, so can't help there.

There are LOTS of folks selling off their 4-ch stuff and much of it is fine: JR, Hitech, Futaba, etc. Just realize it's a dead end road ultimately. You get just 1 more model and not having model memory will be very annoying. Most folks end up with many.

Suggestion: If you had a 'rough flight' on stock equipment I think that a full mod may not necessarily make your life easier. In general, if you can't fly stock, you 'll fly worse on ailerons unless you leave the dihedral in which takes some of the utility out of them.

[helltrix]

Nearly finished modding the plane. I'm about to do the first cuts for the ailerons and was just coming on to try to ascertain the best size. Think I'm gonna do 12" by about 1".

I installed the rudder and elevator servos. Removed the anti-crash stuff to lighten the plane a bit. Removed the drop module wires. Got the RX wired up. Soldered all the wires for my new brushless ESC. I got a 40amp Eflight with four HS-55s. I found a nearly direct swap Brushless 2700Kv. Its a Six series 28mm diameter upto 400 Watts. Can be used as direct drive or the geared setup of the cub. I had to dremel out a tiny bit of the stock motor gear housing to allow the motor to fit. Also cut the screws in half as they where too long.

The wires from the ESC to the motor are not really long enough so I gouged a tiny bit of the inside to let me slide the ESC into the frame a bit more so I could attach the wires and heat shrink them.

I found plate that my gearbox attaches too was cracked so I put some epoxy and fiberglass on it so I'm just waiting for that to dry before I can connect the motor wires through it and test the motor rotation.

I'm going to leave the dihedral in for the first flight I think just so I can see how the balance. Also in part because the new servos are so much faster not to mention the increase in power from the brushless, I want to leave a bit of emergency plan while I test the initial performance before taking out the dihedral.

I am also much better at using ailerons + rudder than trying to make the cub turn with just rudder alone, its just weird to fly that way for me. Also thanks to the DX6i and my stereo jack hooked into my computers MIC port. I was able to use Smart Propo Plus along with pptoy programs which allowed me to use Real Simulator 4 that I picked up from a friend for free. He no longer hand the original controller. I must say that real simulator G4 is a pretty good sim.

I'm taking pictures of my entire mod process so I can throw them up on my website soon.

Mmk, time to slice some ailerons.