Mordy Div

Okay good luck, could be a faulty unit

Posted by ericrw on 21/03/2013 12:21:18: I have been fitting the Version 2 flight stabilizer. Every thing is working OK but though I've got the Aux lead from the stabilizer into the flap socket on the receiver, it does not switch off when the flap switch is activated/deactivated. Any suggestions as to why this is happening;gratefully received. If you are using a 2 position switch, check the travel at the position you want to be off, go to the travel adjust setting in your tx and put the switch in the off position and then keep increasing the travel until you see/hear the gyro go "off" it never really goes off, just stops correcting. Lets us know

Still havent test flown the gyro, been way too hot down here, 33' plus for the last few sundays.

The Missus found this just the other day, I was so happy, I remember taking this around 1982. These were my two favourite models. Plane was a Pilot T2 Forster Kit with the OS FS40 (my father gave me the motor as a gift) I didn't realise until later years how expensive it (the motor) was, the kit I purchased at a local hobby shop, just over $80, I had to sell 1000's of newspapers to raise the money for that kit. I had enourmous pleasure building the kit and the smell of that Japanese Balsa, woo wee, beautiful !. Then the dope...., I love doping even today, I think it snaps me right back to the days of building this model and covering it. Just thinking about it and composing this message makes me choke up a little from the fond memories I have of the process of building and flying that plane and others around that time...... I had that plane for 10+ years, schleped it all over Australia (only punctured the tissue once) whilst I moved around with work (GA Pilot) unfortunately I had to sell it for rent money, as I was broke and my food vouchers ran out when the Aviation company I worked for went bust . I purchased what must have been the last Pilot kit of this model about 15 years ago and still have it sitting in my shed waiting to be be built, I top the box up with moth balls and sachets every few months, it looks brand new, but, alas the Japanese balsa smell has been replaced by the (almost pleasant and toxic) aroma of naphthalene, why do modellers usually like the smell of toxic chemicals ?, I also have a OS FS40 MIB, for this kit. One day, in the not too distant future, I will commit the model to the bench for building and I'll have to do a build blog... Sorry for rambling on, The model truck was a tamiya Hilux, thoroughly enjoyed building that as well. Thanks all.

  Hi all, sorry for the long posting, I have allot of info to advise and I have cut back as much as possible.   I was very dissatisfied with my installation of the V2 Stabiliser in my model and was also finding it difficult to eliminate causes of problems leading to the unsatisfactory and potentially dangerous and unpredictable behaviour i was achieving with the stabiliser, i.e. sudden jerky flight surface movements, interaction of flight surfaces when others were command to move, I would move aileron and the rudder and elevator would suddenly jerk back and forth (gyro lowest gain) see opening post by Pete B   I decided to build a test rig to make it easier to run some test as it was awkward whilst all the gear was mounted in the plane, and to eliminate the model itself.   After testing with 3 different receivers and 2 different transmitters and in various environments, the device still exhibits unpredictable, uncommanded or initiated flight controls movements (disregarding the gyro applied corrections which are consider initiated movements).   I have tried powering up the V2 stab upside down, backwards, sideways etc with gyro on and off. (gyro on and off using the AUX channel) I have tried amongst other things the AUX channel plugged into the gear channel, a fully proportional channel and a 3 position switch channel, I have tried adjusting end points and throws on the different channel setups with interesting results. I noticed while changing the servo travel figures in the TX interesting spikes and movements through the servos. As you can see on the pictures I hot glued some skewers on the horns to better notice movements.   I decided to try putting a ferrite ring on the AUX channel lead (pic) there was a noticeable reduction in servo jumping and jerking but the movements are still apparent with the test bed just sitting still on the bench gyro on (i am aware that in flight there will be a constant signal activity from the gyro due to the nature of the flight) these jerky jumpy movements are apparent even with the stabiliser de-activated through the AUX selection and the test bed sitting still on the bench and also with the AUX dip switch set to gyro and AUX lead removed altogether.   It is the sudden uncommanded movements that and jerky movements that really worry me, I believe it is unsafe to fly a model exhibiting this behaviour, as previous messages and other forums indicate the results of.   From my tests I am convinced there is electrical noise getting into the V2 Stabiliser, I have seen it on oscilloscope and through the servo movements, and even noticed it on the ESC LED's for throttle movement (castle ESC) BTW I tried powering the device with linear and switched BEC's, and good 'ol nimh, the only thing that has improved the performance so far is the Ferrite ring.   What perplexes me, is that not every one is noticing these behaviours etc. as Scott says thousands of his customers don't have issues, maybe they haven't noticed the movements or there is enough slop in the system they don't show up.   I have ordered a few more rings to try and I have a few more experiments to report back on but at this stage I would be very reluctant to try it in flight.   Thanks all again and sorry for such a posting. Edited By Pete B - Moderator on 23/02/2013 16:00:52

Posted by Pete B - Moderator on 28/01/2013 18:14:17: I thought I'd start a new thread on version 2 of the HK 3-axis Flight Stabiliser as I'm sure I'll not be the only forumite trying one out and we can pool experiences here. Unfortunately, my test-flight was rather curtailed......... ...... That just leaves the reason for the crash to be established now........any suggestions? Pete Hi all, Gday Pete, I recently purchased two of these v2 3 axis stabilisers, I read your posting and was "happy" to see almost identical symptoms to my experience tonight, meaning for me that it wasn't my gear, just this 'Gyro' K also did all the trouble shooting, isolating the gyro etc, I also noticed the interaction with rudder and elevator when using a little aileron. An interesting thing I found during my trouble shooting, If I powered up the gyro and receiver with the Aux function on i.e the gyro active, it seemed to have much less jitter, the continuous hunting or humming of the servos was still there (very annoying) but the interaction had decreased significantly, quite disappointed with the whole thing and I'm not really convinced its flyable at the moment. Have you or any one else had an further problem solving ? or fixes ? Thanks all regards Mordy.

I know this is an old thread, but I would love to know....did it ever get built and I would also love to get my hands on plans ?