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    Twin props - different speeds
    by EricMB ๐Ÿ‡ฌ๐Ÿ‡ง ( Chief Petty Officer 2nd Class)
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    35 Posts 34 Replies 4 Photos 17 Likes
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    EricMB
    Chief Petty Officer 2nd Class
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 12 seconds ago
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    Thanks so much Dave, sorry for not responding sooner, day job getting in the way!! Hope to try this at the weekend..๐Ÿ‘๐Ÿ‘
    1
    dave976
    Midshipman
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 1 hour ago
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    It's on this thread, posted 2 days ago,
    dave976
    stotty1111
    Master Seaman
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ซ๐Ÿ‡ท France
    Online: 2 days ago
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    Maybe I have missed it, but the programming of the TX starting from your recent posting!
    dave976
    Midshipman
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    Hi Stotty1111
    Not surprising really as the gimbals on the Flysky are not that good. Then again the price has to have compromised the build and for most modellers the FSi6 works fine and offers many of the functions of the more expensive offerings at an affordable cost. The Radiomaster offers Hall effect gimbals and they remain spot on at all times but again at an increased cost. What exactly would you like to see, the equipment or a working demo?
    Cheers
    Dave
    stotty1111
    Master Seaman
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ซ๐Ÿ‡ท France
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    Spent some time last night trying various mixes, none of which worked as smoothly as that on my Turnigy 9X, the 6 seems a little rigid in the setup stage, whereas the 9X has more variables which does make it more flexible.
    I will be interested to see the system suggested by Dave976!
    tomarack
    Warrant Officer
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡จ๐Ÿ‡ฟ Czech Republic
    Online: 19 hours ago
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    Hi, I use motor control on my model ps Lulonga.I had a mixer problem with the HK6A somewhat simple transmitter. I solved it using an external V-tail mixer, and two ESC.I control the model using the right stick (throttle), the external V-tail mixer mixes me 3rd (throttle) + 1st channel (ailerons). another is on youtube >https://www.youtube.com/watch?v=iS6F8y60BAU
    http://www.paddleducks.co.uk/smf/index.php?topic=6336.45
    Lulonga is a paddle steamer, but I think a similar principle can be used to drive propellers.
    more videos you can view > google> lulonga model tomarack <


    Tom
    https://www.youtube.com/watch?v=iS6F8y60BAU
    ๐Ÿ”—
    http://www.paddleducks.co.uk/smf/index.php?topic=6336.45
    ๐Ÿ”—
    1
    Main principle: if it is not broken - don't repair It !
    dave976
    Midshipman
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    Hi Eric
    Finally found some time to write up the procedure to program the FlySkyi6. Hopefully this will help you decide a way forward to control your twin props. The percentages I have used in the mix functions are more for guidance than hard and fast rules as different models and motors will benefit from some fine tuning.
    FlySky Fsi6 โ€“ Using Mixing functions

    Before commencing set your Tx to the settings I had on my TX
    SYSTEM
    Model โ€“ I suggest selecting a spare model and naming it Mixing until you are happy with the settings
    Type โ€“ Airplane or Glider
    RX setup โ€“ settings suitable for your equipment ie it will not affect the mixer
    Trainer mode โ€“ off
    Student mode โ€“ off
    Sticks mode- Mode 2
    SETUP
    Reverse โ€“ all normal
    End Points -all 100%
    Display โ€“ Select this to see the individual channel out puts and the effect of Chanel 1 via the mixer on channel 3 and 5.
    Aux channels Channel 5 โ€“ none
    Subtrim โ€“ all centered
    Dual Rate โ€“ Ch1 Normal Rate 100% exp 0
    Throttle Curve โ€“ Normal L 0% 1 25% 2 50% 3 75% H 100%
    Mix โ€“ this will link channel 3 and 5 and mix Channel 1 with channel 3 and 5
    Mix#1 โ€“ On Master Ch3 Slave Ch5 Pos mix 100% Neg mix 100% Offset 0%
    Mix#2 - On Master Ch1 Slave Ch3 Pos mix 50% Neg mix 50% Offset 0%
    Mix#3 - On Master Ch1 Slave Ch5 Pos mix -50% Neg mix -50% Offset 0%
    Elevon โ€“ Off
    V Tail โ€“ Off
    Switches Assign โ€“ not important
    Throttle Hold โ€“ Off.
    I am assuming owners of the i6 are familiar with the use of the buttons to operate the menu. I will mention for anyone new to the set that you need to save the settings on each screen by pressing and holding the Cancel button until the display changes. Yes the Cancel button. Took me a while to understand this logic when I first got the TX.
    Have fun and boldly go
    dave976
    2
    dave976
    Midshipman
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    The radio I refer to is the FlySky FSi6 and I have used this on several models without problem. This set uses the built in mixer function which allows three mixing options. This is not the same as using Flapperons etc.
    I was a fan of the FRsky Taranis but their latest offerings (Horus) appear to have abandoned the Open source route so I switched to Radiomaster. For most Model Boaters the FlySky offering ( in several guises) meets most of our requirements and is expandable for those who may need more control channels.
    I will be posting details when I have time to document the procedure.
    Happy days
    dave 976
    stotty1111
    Master Seaman
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ซ๐Ÿ‡ท France
    Online: 2 days ago
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    Dave 976 Having read your last post re twin motor control etc using an FS6 tx and trying to achieve similar programming as per the 9X tx, I don't think it can be achieved, see the attached sheet to explain how my system works and also the mixing of the 2 channels.
    Interested to hear your views!
    Tony S(Finistere)
    stotty1111
    Master Seaman
    ๐Ÿ“ Twin props - different speeds
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    Country: ๐Ÿ‡ซ๐Ÿ‡ท France
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    Ah ha, That is different to my mix using a 9X tx with the ER9X software loaded, with the left stick vertical, both motors running forwards and back, and with independant rudder control on the right stick in a horizontal movement. If time permits tonight I will note the other motor activity as they are fully variable dependant on the stick position in the full 360' movement.
    The tx is fully programable on all 8 channels with the 'flashed' ER9X software!
    Show 25 More Posts



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