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Going Flybarless? My 1st Impressions.

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  • Going Flybarless? My 1st Impressions.

    Thought I’d do a little write up for my first real impressions on going flybarless, and maybe give a little insight of someone taking their first steps into this. Maybe this will enlighten some whom maybe considering going this route..

    Well, After months of deliberating on a Flybarless unit, I have taken the plunge on the Mikado VBar with the V4 software. The ‘older’ Silver sensor version came up on the BMFA, and got it for a price that I was fairly happy with, and was already upgraded with the V4 software.

    Up to now, the only flybarless unit that I have tried is the Gaui 365, which I had tried on my Beam. This was about 4 months ago, and my initial impressions were not all that good. Although it turned it into something very responsive, and unleashed more power, it was far too ‘squirrelly’ and just found it too hard to live with as an everyday helicopter. There was adjustment to turn sensitivity down, but when this was adjusted to how I liked it in normal flight, the flip rate just slowed down too much. A few experiments with it and I decided to call it a day with it.. Maybe more suited to someone who wants a flybarless scale. (Just IMHO)

    I have been offered so many times from friends to try their Vbar flybarless helis, but I sort of have a stigma on flying other peoples helis, fear of crashing it and the fear of wondering into something a bit unknown to me…Well I shouldn’t have worried.

    I had a choice of fitting this to my Logo500, but MSH has just released their flybarless upgrade parts to convert the existing 500 rotor head on my Protos, and this came in at a measly £30, rather than the £114.00 just for the parts to convert my logo 500!

    Fitting was pretty much straight forward, and also a great help in the Vstabi site, which basically runs you through the complete stage of fitting, configuring, trimming etc…and all in glorious Video! I managed to download someones configuration for the Protos from their forums on the site, and used these as a starting point. A lot of presets can be found in the software for the Mikado range, and also quite a few of the trex helicopters.

    First outing with it, and bringing the heli into the hover was pretty uneventful. It lifted into the hover with no unpleasant surprises. There was a small drift, but this would be taken care of in a ‘trim’ flight which I would do later. As you do, I was trying to take things a little cautious to start with. After making sure the tail was holding and everything else felt ok, straight into idle up, and I flipped it over. Basically the thing just flipped in not even a blink of an eye!.. Now to prevent the heli from driving itself into the ground inverted, negative pitch was promptly brought in, to bring the heli into an inverted climb out…boy this thing is fast! Flip back over again, and decide it’s time to reign it in and do some tweaks.

    A quick phone call to ChrisB on here whom pretty much knows everything about the Vbar, he advised me on some settings to tone it down. Another flight, and then to the ‘Trim’ flight to get everything smooth…

    ….what more can I say. The heli has transformed.

    The flybarless setup has released even more power on the protos(Not that it was short of it in the first place). The esc was taken down by about 10 points on my DX7, and the battery packs also seem to come down a lot cooler than when it had its flybar.

    The heli itself is very stable, and pirouettes right side and inverted, it just really sits there. The tail gyro works extremely well, and all the usual fast backwards flying, funnels, and tail slides does not phase it one bit.

    Cannot recommend this enough, and think a Vbar and flybarless head should already be on everyones Christmas list if you are considering going flybarless! Havn’t tried any other flybarless systems at the moment, so cannot comment if there are any better systems out there though

    Like to thank ChrisB again for answering all my phone calls of help whilst setting this up!

    HIGHLY RECOMMENDED!
    ANdy - CDMFC

    Align 700E 3g v3 - the gonnads
    Align 550 Beast X
    2 x Trex 450 Sport, Align 3g V2.1 Flybarless

    Proud owner of 3 x E.G.S.
    Citizen 00000197 - RCHELINATION - PODCAST

  • #2
    Congratulations!
    This mirrors more or less my own impression on the 550. Especially the tail is the most solid I've ever seen (an unfair comparison, since the V-Stabi knows both the cyclic and collective load, and can start to correct the error even before it has happened).
    One hint: There is a "cyclic gain" calculator on the vstabi homepage. As it turns out, the parameter should be calibrated with a pitch gauge. If the resulting value isn't in the window 80..110 or so, you may be able to get even better performance by modifying the swash linkage.
    There is even talk that flybarless might be allowed for F3C one day (proposals, at least).
    Woohoohoohoohoohoohoohoohoohoohoo -Barbra Streisand

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    • #3
      I will look into that

      It is just so good already.. and think my settings can still be easily improved!
      ANdy - CDMFC

      Align 700E 3g v3 - the gonnads
      Align 550 Beast X
      2 x Trex 450 Sport, Align 3g V2.1 Flybarless

      Proud owner of 3 x E.G.S.
      Citizen 00000197 - RCHELINATION - PODCAST

      Comment


      • #4
        Ive just converted my stretched Logo 500 to VBar V4....and WOW....its amazing.....Flight times increased - more power - everything runs cooler - flips are insane.....im totally converted now ive dialed my Vbar into my flying style......



        C Ya
        Ken
        "Yes it is hard to fly"
        "What do you think.....no you carnt have a go"
        "Further than you can see"
        "So your dads got one.....id love to see it"


        Powered by pure luck and a

        Comment


        • #5
          Interesting, just setup and went through all this last weekend on a 600n but did the auto trim flight straight off and it did want to wander about quite abit to start with. Is the prefered method to do auto trims after the initial flights ?

          Also i see there are check boxes to optimize aileron, elevator and tail. Should these be on or off to start ?
          Velocity 50
          Synergy N5
          Fury 55 FBL
          Trex 700

          Light travels faster than sound, this is why some people appear bright until you hear them speak....

          Comment


          • #6
            Keep the optimizers on untill your happy with the way the tail/cyclic feels.......once your happy "untick" them. The Vbar wont adjust anything then....

            I did a couple of normal test flights before the trim flight......only thing to be sure of is a nice still "none windy" day when carrying out the trim flights.

            Ken
            "Yes it is hard to fly"
            "What do you think.....no you carnt have a go"
            "Further than you can see"
            "So your dads got one.....id love to see it"


            Powered by pure luck and a

            Comment


            • #7
              TBH I haven't done an auto trim flight yet - it hasn't been calm enough to do one. The optimize loops for aileron, elevator and tail I believe you should turn off when you feel the heli has reached your prefered style. I'll be turning mine off on the next flights provided nothing changed and its still responding that way I like it.

              I haven't looked back since going vbar. Its a big costs without a doubt, but the heli tracks on rails, responds how I like and feels solid.
              Cheers
              Stuart

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              • #8
                Right thanks for those pointers, i'll probably go thru the whole thing again from scratch when the forecast grim weather disappears.
                Velocity 50
                Synergy N5
                Fury 55 FBL
                Trex 700

                Light travels faster than sound, this is why some people appear bright until you hear them speak....

                Comment


                • #9
                  The Gaui FBL unit uses piezo gyros so is more susceptible to drift/temperature problems.

                  The tail optimisation should be done after the trim flight and not at the same time.

                  Cyclic optimisation should be un-checked after a few flights. When it feels nice.

                  The trim flight must be done on a DEAD CALM day. If you cant get a dead calm day then best not to do one as this will make matters worse.

                  Blade choice is also very important to FBL as is the CG.

                  Just a few thoughts.

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                  • #10
                    You say blade choice is important......I assume stiffer the better...?? Or is that wrong...

                    Im flying NHP carbons at the minute and the heli feels great...however ive also got some Maniacs which ive not flown on Vbar yet...guess I should try them

                    Ken
                    "Yes it is hard to fly"
                    "What do you think.....no you carnt have a go"
                    "Further than you can see"
                    "So your dads got one.....id love to see it"


                    Powered by pure luck and a

                    Comment


                    • #11
                      Stiffness is important .

                      Also a slightly heavier blade is better. if you were using Radix then non SB would be my choice.

                      This is my opinion.

                      I'm sure someone else can chime in

                      Comment


                      • #12
                        Glad you are liking it Andrew,told Ya

                        I have not done a successful trimflight on my 600N but see no need to,it flys on rails and does not wander.

                        when i first flew it i did a bit of a trim flight,the model wanted to keep creeping forward but i never got a full time bar on it and the forward creep is gone.

                        Piros on the spot no problem.

                        I dont fully understand the optimisers but as mentioned they optimise the model to the setup,parts used and flying style.

                        On the VStabi site they recommend once you are happy to uncheck them but if you make any changes for instance swap main blades activate them again for a few flights.

                        I can only mirror Andrews comments,i have had 100% success with the V bar and i am totally sold on it.

                        I know its not everybodys cup of tea and advantages of using it are really down to personal taste but it really does it for me.

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                        • #13
                          Which Rx are you using? Is it abit of a squeeze getting the Rx and Vbar box underneath the mainshaft bolt?


                          Paul

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                          • #14
                            From another flybar manual I remember, heavier blades are better.
                            The vstabi homepage tells us, lighter blades are better.
                            So who is right?
                            I will try for myself (Radix and Align on the 600), once it's dialled in.
                            Woohoohoohoohoohoohoohoohoohoohoo -Barbra Streisand

                            Comment


                            • #15
                              I have a Gaui-365, 2 Gyrobots and a VBar v4 on my fleet of helis. I took a decision last year to embrace the flybarless revolution and dispite the inevitable teething problems I have no regrets at all.

                              The reason I reply to your post is that as a result of my crusade I am often challenged by my fellow club members with the question "why?". I cannot answer this with any better reason other than "cos I want to!" but can also confirm that having made the change that no other single upgrade has offered such a massive step-change in performance.

                              In my experience the Gaui is a good basic system but limited in adjustability and as a result it "is what it is" but the Gyrobot and VBar are awesome allowing full transformation adaptable to your flying style.


                              Can't recommend it enough....and it looks and sounds great too.

                              TRex 500 ESP VBar

                              Flybarless is more

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