Posts by tigger

    I won't have any Access to my models for the next few months, so I can't check my setup.

    Anyway, I remember that the Vector gain value was 100%, but I forgot that the "sense x 4" was individual for each fonction.

    I also remember that the "flight assistant" was usefull to quickly reach the correct gain values for all functions (except Vector, stucked to 100%) and all of them were with "normal sense" and not "x4".

    Sorry not to have all my numbers.

    It could probably give to you more confidence.

    Good flights!

    Hello,

    I have an Avanti with a Mercury, and I have used the Igyro SRS on one Pitts Python, then now on a big Ultimate.

    I would be very surprised that the "Gyro Sense x 4" is necessary on the Avanti.

    I currently don't use it on my Avanti and the only time I used the "Gyro Sense x 4" was when it was mounted in the Python, that was not so responsive as the jet.

    Just my 2 cents...

    Hi,


    after a sensor change by powerbox, here is my feedback on my trouble on my I3E with GPS.


    While installing it with all cables ("glued" with specific gyro foam on its new stand, mounted also with foam tape and screw in the middle of the fuselage, far from exhaust), I had a lot of vibrations as long as the gyro was not perfectly glued.

    I tried direct input/output on the I3E (i.e without emcotec), with the same result.

    As soon as everything was glued in its place, no more vibration.


    I tried in flight with "little to no wind" and here is the result:

    - the flight behaviour is nice in all manoeuvers (locked and sharp) with a few lower gain value (in heading hold, as I used it before), except for knife edge that would request more elevator and aileron corrections,

    - I can still see the small elevators movments very fast, according to engine vibration (low to middle RPM) during slided approachs, but I can see NOTHING while performing torqueroll or hovering.

    I don't see these fast movments for the same manoeuvers on my other Ultimate with Igyro SRS and ZDZ210 (much more vibrations than the DLE55).

    My conclusion is that my I3E is possibly more sensitive to vibration than other gyros and I must keep an eye on it to be sure that things don't get worse after. Except that, this gyro makes the flight more agressive and sharp.


    Thank you Powerbox for your support.

    Hello,


    as you can see on the following link (sorry for the poor quality), I have big vibration while switching on the gain button on my Igyro 3E.

    Here is the full story:

    - this 3E worked quite well on an electric 64' MXS extreme flight, but it was not very usefull on this model,

    - it was finally mounted on an EMHW Ultimate with DLE55 (quite low vibration engine),

    - it flew well until I saw high frequency movment of the elevators at mid RPM down on the deck, but nothing really noticeable in the flight behaviour,

    - I changed the 3E position in the fuselage (far from canister),then I changed both elevators servos: same trouble,

    - I removed the 3E 2 months ago to avoid any trouble and the Ultimate flew quite well, but I miss the perfect behaviour of the 3E so I have tried today to mount it again in the Ultimate,

    - NOW, just after switching on the gain button, the 3E gives big vibration, even with the 3E perfectly isolated in my hand. I have to set a very very low gain value to remove this vibration. It's useless.

    I also have a Igyro SRS and a Mercury and none of them had ever done this while switching on the gain.

    I'm not confident at all in this behaviour and I would be happy to have any advice.

    Thank you

    I understand your explanation that if the zero is different the position of the actuator arm changes and the resulting angle of start of movement changes, but this is not the case, the zeros are identical, the position of the arm is the same and the length of the turnbuckles It is the same, but Thanks to these tests I was able to discover that by reversing the direction of rotation of the servo its speed is different, it is a programmable Hitec Digital servo and I have the programmer, I will continue to look for how to do.

    If you can think of anything I will appreciate your information

    If you have the hitec programmer, you just have to lower the speed of the fastest servo until you have the correct match between both servos.

    Anyway I already observed this kind of speed difference with the exact same servos and settings.

    I don't have explanation but it's easy to solve the problem for flaps fonction as you do prefer to have a slow motion for this fonction.

    Hello,


    just to confirm one thing. If you have a 12Z (I have one) you will have ONLY FASST module for 2,4.

    So the only way to have telemetry with this system is the robbe "telemetry box" used with a 6308SBT receiver (FASST but with extended telemetry scheduled for the telemetry box).

    If you want to use a 7003SB receiver or any other FASSTest receiver allowing telemetry, you will need to buy another transmitter that use fasstest.

    Be carefull, futaba has severall protocol for their telemetry and all their radio are NOT compatible with all of them.

    Good luck with your search.

    Hello,

    I think that each model equipped with a mercury can have different result, regarding the flight behaviour with flaps.

    Here is my experience with flaps of an Avanti equipped with a mercury SRS V09, and the behaviour was the same with the V07.

    In assist mode:

    - middle flaps (take off position) without any mixing: no trouble,

    - full flaps + "aileron in airbrake" (landing position) without any mixing: strange behaviour. Sometimes perfect, sometimes while in turn or while speed is reducing I can see some strange pitch manoeuver and I DO not want to see these manoeuvers during my final approach. (and I can't modify the elevator gain: if lowered I don't have the knife edge corrections, if increased I have oscillations in normal flights)

    - full flaps + "aileron in airbrake" (landing) WITH elevator mixing: no trouble but I'm aware that I don't have the "assist mode" advantage, as my elevator is far from initial center position.

    I don't have any ballooning during landing, either without gyro, or with rate mode or with assist mode, and with or without mixing.

    My positions are:

    FM1: NO GYRO

    FM2: ASSIST 45% aileron+ elevator, RATE 45%, for rudder, vector thrust disabled

    FM3: RATE 45% FOR ALL; vector thrust at 100%


    My chrono flight is:

    - just before take off (to have all surfaces at 0): FM1

    - take off , all standard aerobatics and landing (with flaps to elevator mixing): FM2

    - hovering or spin or funny manoeuvers: FM3 (I can also land with this position as the elevator mixing is always active with flaps)

    - any suspicious manoeuver or doubt on gyro: FM1


    After some test I finally had the same gains between the V07 and the V09.

    I'm currently using only SOFT behaviour but I think that I will increase a bit the vector thrust behaviour to NORMAL or more, as the Avanti feels unstable in harrier.


    I hope this helps.

    Goord flights

    In fact the both servos on the rudder A are the both one behind the other and the third one is on the side.

    They are easier to match but still not perfect for position in between middle and extrem.

    Ok for the separate calculation for rudder A and B.

    Anyway, for general information, could you confirm if it is normal to have no duplication of the values rudder A and B with flight assistant?

    Thank you

    I don't understand why the synchro should not be ok between rudder A and rudder B.

    Moreover I have a problem with all servo matching of any brand and any system: you always match 3 positions: middle and both extrem position.

    But when you have big travel adjust (60° on servo to have 40° on the rudder to maximise power) and you have a look in between middle and one extrem, the matching is not correct.

    I have an example with my current both Rudder A servos: perfect middle and extreme BUT not perfect when I switch low rate (position between middle and extreme).

    So I always use 5 points mixing to match slave servo on the 5 points of the master.

    Hello,



    I would like to know if the following behaviour is normal, while using flight assistant on the ground before setting it up for the flight test..


    Here is the set up: Igyro SRS+GPS+Powerbox competitionSRS with futaba T18MZ and 2 6308SB receivers.


    In order to use 3 savox 1230 servos on the (huge) rudder of an Ultimate, I selected "digital OUT" to have the possibility to use rudder A (with 2 servos+matching) and rudder B with the third servo. I have a permanent prog mix on the radio to mix rudder A servos and rudder B servo.


    I have one switch for the gain and one switch for flight mode and they are correctly seen by the gyro.


    Here is my trouble: when I use flight assistant, the programmation for rudder A is NOT duplicated for rudder B.


    After using the assistant, having a look at gyro settings, all rudder A elements (FM0,1,2) are OK, but all rudder B elements (FM0,1,2) are forced at 0: is that normal?


    I can manually put all the elements on the rudder B settings afterwards, BUT it means that I can't use flight assistant in the air (at least for rudder parameters), as the rudder B servo won't move like the 2 others.


    Thank you

    Hello,


    I would like to know if the following behaviour is normal, while using flight assistant on the ground before settint it up for the flight test..

    Here is the set up: Igyro SRS+GPS+Powerbox competitionSRS with futaba T18MZ and 2 6308SB receivers.

    In order to use 3 savox 1230 servos on the (huge) rudder of an Ultimate, I selected "digital OUT" to have the possibility to use rudder A (with 2 servos+matching) and rudder B with the third servo. I have a permanent prog mix on the radio to mix rudder A servos and rudder B servo.

    I have one switch for the gain and one switch for flight mode and they are correctly seen by the gyro.

    Here is my trouble: when I use flight assistant, the programmation for rudder A is NOT duplicated for rudder B.

    After using the assistant, having a look at gyro settings, all rudder A elements (FM0,1,2) are OK, but all rudder B elements (FM0,1,2) are forced at 0: is that normal?

    I can manually put all the elements on the rudder B settings afterwards, BUT it means that I can't use flight assistant in the air (at least for rudder parameters), as the rudder B servo won't move like the 2 others.

    Thank you

    Hello Richard,


    could you confirm that the sentence "Once the set-up flight is complete, this function is disabled automatically." allows me to use the gain channel for anything else, as soon as the initial inflight setup has been completed and correct gain found for the mercury in each phase (FM1/FM2)?

    For exemple for a pyro mechanism or for any other element that would request a specific channel with specific ATV.

    I used the flight assistant in my Avanti with vector thrust at the very beginning for the initial setup, and now I would need one more channel for my model.

    Thank you

    Regards

    Hello Richard,


    thank you for the quick answer.

    It was the first time that I see this trouble and I always check all surfaces after switching on my models, and just before take off.

    Regards