Page 13 - MFW March 2024
P. 13

will be a next time but it might be a few months away     make it work !   Me, I’m just a button pusher, but I have the
    unless.   But,  ten days later….. Breaking News.          right  friends  !    Programing  the  various  functions,  is  a
                                                              matter of  reading the manual and then fitting small jumper
    This  morning  I  received  a  phone  call  from  a  Lady  in   plugs on the designated pins on the encoder board and
    Taradale to say that she has my Fly-away Senior Tomboy    using  the  toggle  switch  to  alter  the  settings.  Sounds
    aircraft in her garage in Taradale. Turns out her husband   simple and it is after some instruction and reading the
    was on a cycle track somewhere in Clive when the model    manual several times !
    whizzed past him and landed with nobody in sight ! After
    waiting for some time, he decided to take it home and his   If  you’re  interested  how  the  S/C  encoder  set  up  and
    wife put a call out on line through someone in the model   programming  works,  this  manual  makes  interesting
    boat club.  This found it’s way via Messenger to President   reading……
    Marty who was able to get us communicating. I’m able to   https://mfhb.org.nz/wp-content/uploads/2023/12/Single_Channel_Encoder_03j_01.pdf
    pick it up tomorrow, Whew ! That was fortuitous, I got it
    back after it’s 6 K fly away with no more damage than a    The proof of the pudding is in the eating of course and I
    very flat battery !                                        have to say that subsequent flights with the Tomboy have
                                                              been a delight. I reduced the throws mechanically on the
    I’m  singularly  fortunate  in  having  two  mentors,  Barry   rudder and elevator and the model is now trimmed with a
    Lennox and Rob Lockyer who speak the same gobble-         slight  left  bias  under  power  and  the  glide  is  nice  and
    de gook electronic language, and Rob has now refined       gradual and as the speed picks up it pulls out and climbs
    the Futaba FT-3A S/C transmitter with a power light and a   as expected.
    beeper and built a three position programming switch and
    provided lessons so that now even a lowly ignoramus like   Hand launching at full power and just occasional input of
    myself can program the various settings needed to refine   right rudder as necessary and she climbs away nicely.
    our operation !                                           Holding in full rudder in the glide induces a spiral dive from
                                                              which it recovers quickly once the rudder is released. So
    I found one push and hold for right and two pushes and    far we’re in the windy season  so have only flown it in a
    hold for left on the control button easy enough, but the   moderate breeze and needless to say I kept it up wind.
    motor control is just a very short “Blip” and the sequence   The challenge is to land it at ones feet and we’re getting
                                                              better !   I’m awaiting a calm day when I can induce the
                                                              spiral dive from height and then release the rudder and
                                                              apply full power with the hope of doing a loop ! And the
                                                              maybe some sort of barrel roll, wish me luck !  I might add
                                                              a couple more rubber bands.   The change to an on/off
                                                              motor setting has worked well, less confusing and it’s easy
                                                              to  see  from  the  plane’s  response  and  attitude  what’s
                                                              happening.











    of one blip for mid-power, blip for full, blip for mid and blip
    for off and so on, I found a bit daunting. Especially so if the
    blips got a bit strong and became pushes, resulting in
    “Where the hell am I at ?”  Further, at a distance at times it
    became a bit difficult to decide whether I had half or full
    power and what stage of the throttle sequence I was in.
    So the decision was made to program the mid-throttle out
    and just fly with off and full. Further, we put the elevator
    back into channel 2 where it’s supposed to be and zeroed
    the throw and then used the programable trim function to   Next  on  the  Agenda,  a
    set the elevator position.                                Single  stick,  five  channel
                                                              a n   A C E   O l y m p i c   V
    The programming three position toggle switch plugs into   Transmitter, from the early
    the lower board, and the beeper and power light that Rob   1970’s which we have on
    fitted can be seen on the top left.  The Lemon transmitter   l o a n   t h a n k s   t o   t h e
    module is the board top right, and the Arduino encoder    generosity  of    Graeme
    board which is the brains of the outfit ( a whole couple of   Rose.  Rob has converted
    dollars worth !) bottom right. The really clever person is   the  transmission  side  to
    Mike Kitchen from the UK who wrote the program, and       2.4 using a Lemon module
    also very clever are Barry and Rob who understand all the   and  made  the  necessary
    electronic/computer speak and could put it together and   programming  changes.

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