channel mixing for adjustable trim tabs on th fly.

[gsbuickman]

Yeppers it'll defiantly be the nicest radio I've ever had. I was going to buy a Turnigy 3XS 3 channel, but he offered me a deal on the m11 w/ 4 Rx's, so I can eventually have adjustable trim tabs. Its 4 channels with channel mixing + 2 accessory mixers. I was also looking at the new flysky i4 4 channel telemetry with android touch screen. For $125 it's badass :-)

[tlandauer]

Congrats!

[gsbuickman]

Thanks Landauer, hopefully I'll have it in the morning .

[Southwest]

Oops, wrong thread, sorry!

[gsbuickman]

Oops, wrong thread, sorry!

Ha ha ha ha ha ha, one too many gimlets this mornin' ?

[Fella1340]

I have got the it4 and am doing the same thing your planning. It may be a cheaper radio but
I love all the features. Kintec also has an adjustable stinger meant for servo control which would
work great on the 4rth channel! OSE now has the trim tabs in stock to. I am planning using both adjustable trim tabs and stinger for my winter project build. It may be more a headache than its worth but I can't wait to get going on building it. The tabs require little force for adjusting up and down or holding position even on the fly as its design is well thought out. I have a 12kg digital servo for it anyways but its overkill. I bench tested one trim tab with a standard servo and I would haves ended up breaking the trim tab before moving. The three start thread design is great. 45 deg movement of tab arm is more adjustment then you would ever use on the water. Its not practical for adjusting on the fly but I hope it will make water condition adjustments easier. The best part of it will be the build and making it work.

[gsbuickman]

I have got the it4 and am doing the same thing your planning. It may be a cheaper radio but
I love all the features. Kintec also has an adjustable stinger meant for servo control which would
work great on the 4rth channel! OSE now has the trim tabs in stock to. I am planning using both adjustable trim tabs and stinger for my winter project build. It may be more a headache than its worth but I can't wait to get going on building it. The tabs require little force for adjusting up and down or holding position even on the fly as its design is well thought out. I have a 12kg digital servo for it anyways but its overkill. I bench tested one trim tab with a standard servo and I would haves ended up breaking the trim tab before moving. The three start thread design is great. 45 deg movement of tab arm is more adjustment then you would ever use on the water. Its not practical for adjusting on the fly but I hope it will make water condition adjustments easier. The best part of it will be the build and making it work.

Thanks Fella, that's a heck of an idea, thanks. I'll take a look at that. I also agree it'll be fun making it work. I am thinking 1 mini servo for each tab, run on a splitter from channel 3, & possibly a 3rd servo for a stinger on channel 4. It would be the cats meow, but that's a lot of juice to power 4 servos. I had to run a 5000mah 6v 5th scale Rx battery on my LST 2, to power 4 servos ......

[Fella1340]

I bought a couple of life packs to power things from a castle bec. I am hoping
It works out, I am looking at a 35kg servo for the adjustable stinger. That is going to
Take some serious juice for.position holding, still thinking it through as the design of it
isn't ideal. Its going to be a bit of trial and error with that. The trim tab install should be
Straight forward. The "ram" used for trim tab position is double o ringed and keeping
things watertight isn't a problem. It will be a fun project all on its own! Still need to build the boat
first!

[gsbuickman]

Well, get r' done . Its a done deal, I got the Airtronics m11 4 channel radio . It's got a spekky sm1001 module with 4 sr3001 Rx's, + my sr300 makes 5. Ricks got my 3pm now, and I can use my tactic for a rescue boat .

Does anyone have the # for NASA so I can figure out how to program this dern' thing ?........

[gsbuickman]

I bought a couple of life packs to power things from a castle bec. I am hoping
It works out, I am looking at a 35kg servo for the adjustable stinger. That is going to
Take some serious juice for.position holding, still thinking it through as the design of it
isn't ideal. Its going to be a bit of trial and error with that. The trim tab install should be
Straight forward. The "ram" used for trim tab position is double o ringed and keeping
things watertight isn't a problem. It will be a fun project all on its own! Still need to build the boat
first!

Good idea Fella. The only servo I would use for an adjustable stinger, would be one of the 300ish oz. servo's the rock crawler guys use

[Southwest]

My ? is the trim tab one piece of metal? There has to be stress on the trim tab itself. Now if that is the case being a one piece tab, why not have the t/tab be a hinged t/tab. Piano wire on the thick side as movement of tab won't be much. Now like the gentleman from ID has this project, why not use split tabs so the outer tabs would move and keep the inner portion be permanent. When you turn, the inner portion won't be in the water, so that the inner part won't hurt the turning part.

[Fella1340]

Gs, glad you included pictures when you were laying down all the specs of what you got.
It was almost another language! Very nice setup, I know what you mean about programming,
Although I think you'll have a lot more options then I do. I really like the airtronics stuff. My 10
year old one works like its brand new. It has a real nice feel to it. The flysky it4 is light but it doesn't have that quality feel to it. Touch screen is sweet though
Southwest, take a look on OSE store and you will find the adjustable trim tabs.
Very high quality although they could have made them look a little nicer

[gsbuickman]

Let me know how the it4 works out with that android screen & the programming functionality. If I decide I don't"t like the m11, I may sell it, and buy an it4 with a gob of receivers.......

[Fella1340]

Gs, the it4 will work well with I have planned. I don't know how it would work when you
Got into channel mixing for off and on throttle tab adjust. Then throw mixing into the corners
and I am lost. It has a serial bus. I am not sure what that is really used for yet! I was just happy
That its really open button programming. The trim adjust for rudder can be assigned to (anything) to
Trim tabs. The other adjust that would be normally used for throttle can be assigned to drive trim. Rudder adjust can be reassigned to other places on the TX or you can leave it unassigned and to it
On the touch screen. I suppose this is very basic (nothing to compare to) but it gives me the setup I want for quick at my thumb adjust of both. As well both stinger and trim adjust require say less than 30deg movement so no changes need to be made for standard allowed travel of those two adjustments. The TX has channel mixing but I think it may be basic as to what your airtonics can do.
I will look at a little deeper this afternoon though. BTW, if you are interested in the it4 it is a great little
radio. I used it this past season on two boats and a truck and it worked flawlessly. I dropped it more
Than once (never on a real hard surface). And was no more concerned for it than I would be another radio if out on light rain. The only thing to lookout for is make sure you have ver2. Ver1 that I have is a pain as you have to bind the reliever each time you switch models (stores all settings for the model and has 30 model memory that works). Ver2 you only need to do your initial bind and your good to glass it should be. Still a lot of ver1 out there so beware. Another really nice feature of it is your main screen when running. You get TX/rx voltage, can run 2 temp sensor and all 4 of the servo positions are
Shown clearly and there at a glance while you are running. The voltage and rpm are really of no use.
Rpm is only good to 15000rpm(I think that's it) and voltage sensor is only good to 3s. I tried 4s and the sensor blew on me.
The it4 you can pick up and have most features figured out as you click away etc. (Really easy to use, plus the live data feed you have at a glance) I am wondering why you would say you may still go for the it-4? Isn't the airtronics a top end unit? I only have a tactic 2.4ghz (spectrumdxi7 for plane) to compare
To. I am just curious why you still might change to help me out on purchases down the road. I wouldn't give up my flysky to anyone, I assume your airtronics has all these features and more. Help me understand please! I even thought that flysky was being snubbed by a lot of people, why I am not sure. The only thing I can think of is it has as many features (sometimes much much more)I than radios costing 3-4 times as much. There are others out there that do the same thing though so I don't get it? If there's anything you want me to check out on my flysky feature wise or whatever I would be happy to oblige. I would buy another one. I wish I had something here though so I could compare apple to apples so to say. Jeff

[Southwest]

Fella1340- I saw them adjustable tabs but the title of #1 post is for on the fly and OSE is for when boat is in dry dock not on the fly. Ok, my take is for the TECH GENTLEMEN on this forum. When using a 4 channel rx, can a jumper wire be used from servo signal of the slot #2 to the slot #4 servo signal of the 4 channel slot in the signal side of the servo for trim tab so both will be working together. This way the OP won't get distracted with too many items going at the same time. Just food for thought.