Steve Ashton Posted December 23, 2016 Share Posted December 23, 2016 Hi all, Is there anybody out here that has used a T8J as the instructors set and a 6EX for the pupil, there seems to be contradicting info about it. Also, I have previously used ailerons on ch 1 and 6, next year I'm going to be setting up a plane that has seperate flap servos, do these go on ch 7 or 8 and controlled either by VR, a switch, or the DT5/6 switches. There maybe a similar post by myself which seemed to go missing. regards Steve Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted December 23, 2016 Share Posted December 23, 2016 Hi Steve, the Futaba T8J does buddy any other set, as the master, with the correct lead, and flaps to your choice, up and down on a switch or incremental on the VR Quote Link to comment Share on other sites More sharing options...
Steve Ashton Posted December 23, 2016 Author Share Posted December 23, 2016 Hi Denis, Thanks for that, somebody did say that they couldn't be used but what they said didn't make sense to me, they said because the 6ex is on faast and t8j on sfhss they wouldn't work but in trainer mode the pupils output is disabled and the signal is via the master as far as I'm aware. The 6ex doesn't mention the T8J but then when it's manual was written the T8J didn't exist. regards Steve Quote Link to comment Share on other sites More sharing options...
Jon Laughton Posted December 23, 2016 Share Posted December 23, 2016 Steve I have used a T8 as the master and a 6EX as the student set without problems. Quote Link to comment Share on other sites More sharing options...
Steve Ashton Posted December 23, 2016 Author Share Posted December 23, 2016 Cheers Jon, I'll go for it then, what it is, I have a friend who was full size pilot and did his 'A' many years ago and now works with me, he's bought a trainer to get back into it so intend helping him to get 'stick fit' again. regards Steve Quote Link to comment Share on other sites More sharing options...
.. Posted December 23, 2016 Share Posted December 23, 2016 Hi Steve , yes it will work ok. Any contradiction is probably down to the T8j using a 6v cell in line with the newer Futaba sets whereas the 6EX operates on the older 9.6 volt. I use the Futaba voltage drop trainer lead "FUTM4405" from my 14SG and it will and has run the older 6 channel set fine. I do also have a T8j but haven't used it as yet. Flaps wise it's pretty much up to you on what channels you use it's all in the book. Quote Link to comment Share on other sites More sharing options...
John Tee Posted December 23, 2016 Share Posted December 23, 2016 Am I missing something here. If the model Rx and trainer Tx are on fasst and the trainer Tx is disabled how would the Rx receive a sfhss signal from the master Tx? John Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted December 23, 2016 Share Posted December 23, 2016 Put simply Tom, with all other makes too, the master just uses the slaves sticks, and nothing else Quote Link to comment Share on other sites More sharing options...
Steve Ashton Posted December 25, 2016 Author Share Posted December 25, 2016 Ok a couple of things here, John: the master is the T8j on sfhss, the slave/pupil set, ie the 6EX should hv the tx output disabled when the correct end of the cable is fitted, I have tgat some cables are labelled master/slave on the plugs, so my understanding with this type is the slave is sending stick/trim/ and mixes depending on the trainer settings in the master t8j. Justin: my t8j came with 4 cell NiMH pack which is why i asked about battery selection. A couple of years ago Santa has brought me two more receivers for the t8j The person that told me t8j and 6ex couldn't be used together? A ripmax rep! Regards Steve Edited By Steve Ashton on 25/12/2016 20:48:27 Edited By Steve Ashton on 25/12/2016 20:49:13 Edited By Steve Ashton on 25/12/2016 20:50:01 Quote Link to comment Share on other sites More sharing options...
John Tee Posted December 26, 2016 Share Posted December 26, 2016 Dennis/Steve. I understand that the pupil Tx output is disabled (thereby using the master Tx output),but if the Rx in the model is faast and the master Tx is a sfhss how can they "talk" to each other as I thought they were not compatible. John Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted December 26, 2016 Share Posted December 26, 2016 Sorry about the delay John, and don't forget this is for All makes of radio. Not just Futaba. They do not talk, they are Hard wired by buddy lead to the master, just the sticks and the trainer button flicks between the two tx. The Master is the only Tx signal bound to the model, the slave has No transmission. A switch connects the master sticks to the novices sticks when thrown or pressed. It also does not matter which mode they are. A mode 1 instructor can assist a mode 2 novice Quote Link to comment Share on other sites More sharing options...
Birgir Posted December 30, 2016 Share Posted December 30, 2016 Hi Steve Have you thought of using Dual Receiver Controller: Wireless buddy box I have put such a thing in my old Keil Kraft Mini Super using Futaba 6J and a very cheap Hobby King HK6S transmitter and receiver. Worked fine for my only pupil in a single lesson. B. Edited By Birgir on 30/12/2016 13:57:00 Quote Link to comment Share on other sites More sharing options...
Steve Ashton Posted December 31, 2016 Author Share Posted December 31, 2016 Hi I've never heard of that system, be interesting how it works seeing as the protocol for fast and sfhss is different. Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted December 31, 2016 Share Posted December 31, 2016 With any buddy Ste, It doesn't matter, wireless or cable, there is only one Tx, the master, bound to the model. No matter what its protocol, the Master Tx switches off its sticks, and uses the sticks in the slave Tx when the trainers switch is operated. Edited By Denis Watkins on 31/12/2016 15:55:43 Quote Link to comment Share on other sites More sharing options...
Phil Green Posted December 31, 2016 Share Posted December 31, 2016 Posted by Denis Watkins on 31/12/2016 15:54:39: With any buddy Ste, It doesn't matter, wireless or cable, there is only one Tx, the master, bound to the model. No matter what its protocol, the Master Tx switches off its sticks, and uses the sticks in the slave Tx when the trainers switch is operated. Not so Denis. With the dual-rx setup outlined above, both transmitters are bound to the model and both transmit all the time. The active receiver is chosen by a channel on the master tx. (I know, is my design!). Cheers Phil Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted December 31, 2016 Share Posted December 31, 2016 Hi Phil, Some people are reluctant to try buddying, and I try to be positive and chivvy them along and not to complicate matters. I stand corrected, but flyers must try these aids for novices. Most cable set ups are Master bound to model. I do all I can to promote all makes and gizmos, for the future of the hobby Quote Link to comment Share on other sites More sharing options...
Birgir Posted January 1, 2017 Share Posted January 1, 2017 Hi In the Dual Receiver setup, you have as the name suggests, two sets of transmitter/receiver and in fact there is no information going from one set to the other. The neat trick is that one set is connected to the Ctrl of the Dual Receiver Controller via its receiver and you can, with one switch on that transmitter, control which set actually is flying the plane. Congratulations on a smart and simple design Phil. There is a video on RCModelReviews that explains this very well. https://www.youtube.com/watch?v=-t1QmKa1LTI Happy New Year B. Quote Link to comment Share on other sites More sharing options...
Steve Ashton Posted September 15, 2020 Author Share Posted September 15, 2020 Hi Everybody, Sorry I have to revive this slightly, I have bought an Arrow Marlin but before I fly it, I thought I'd practice with flaperons to get into the habit of using flaps. I have the T8J and T6EX connected ok, all trims and sticks switching over ok apart from a problem with the flaperons. With them setup ok on the T8J, I moved onto setting up the T6EX, what I did was enable flaperons on the T6EX and tried trimming and throws etc, I cannot get any movement at all from the T6EX flap switch - Flaps are enabled on the T8J's trainer screen. If I disable the flaperons on the T6EX and just use flaps trim and trims/throws in general, the flaps are almost perfect between the two. I can't get the same amount of flaps travel from the T6EX as I can from the T8J. Anybody any clues, not really crucial as I'm looking for another T8J Quote Link to comment Share on other sites More sharing options...
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