Michael Oliver

Hi Neil, Since I posted this thread, I have been in contact with Horizon Hobby about the problems I was experiencing, they advised me to send it back to them along with the receivers so they could check them out. Anyway after waiting a couple of weeks I contacted Horizon Hobby again to find out the state of play with the transmitter and receivers, I was told they were waiting for parts to repair the transmitter, and it would receive top priority when they came in. So it would appear that the transmitter is/was at fault for the glitches I was experiencing, I don't know the exact fault but I suspect mine won't be the only transmitter with a problem. My advice to anyone who has experienced troubles with their DX6 to contact Horizon Hobby and get their Transmitter checked out. Michael.

Thanks again for all the replies, I'm not sure if someone got hold of the wrong end of the stick somewhere but when I did the load test on the receiver batteries the WORST reading I could get was 5.3 volts. The batteries are all Overlander 2000Mah Eneloop's. This morning I have contacted Horizon hobby for there ideas, as I'm feeling the TX is at fault having had the wireless trainer board already replaced and having flown the worst affected model previously using a DX8 transmitter with no problems, I'm thinking maybe "buy cheep, buy twice" the DX6 is very cheep for what you get, and I wonder have they cut a few corners, or is mine a Friday afternoon special.

Thanks Frank, I am considering sending the Tx back to Horizon Hobby for testing. I have doubts about the Tx having already had the wireless training board replaced under warranty. All of the radio equipment is UK shop sourced, but who knows where they sourced from ?

Hi all again, One of the models was an old airframe/switch/3 servos aileron/elevator and throttle, but did have a new 4.8v battery fitted, when I experienced the roll onto it's back, the engine did hiccup as though the fail safe had kicked in, then the engine picked up again and I had full control over the model, this happened to the left of the patch, which on this particular day was the direction of approach for landing. The second model was a brand new model, with 4 new servos (Futaba S3001) throttle, elevator,rudder and one aileron, new switch, new 4.8v battery flown on the same day, and I experienced a similar problem in the same area of the field, although the engine did not miss a beat this time. Third model, was an old airframe, but with new gear,5 servos (Futaba S3001) throttle, elevator, rudder, 2x aileron, new switch, new 4.8v Battery. This was flown this Saturday, with a similar wind direction, but I had the problem in a completely different area the field, the model again continued to roll over and the engine cut (fail safe) before I managed to get the plane back under control and down in another field. The common denominators are DX6 transmitter, AR400 receivers, and 4.8v receiver batteries. The TX has the Spektrum 7,4v Lithium Ion battery fitted and shows 8volt as I write this. As I stated earlier, I have tested the models under load and the receiver battery did not drop below 5.3v.

Just a quick update. I have carried out a test on the battery voltages with the servos under load in two of the models, and the worst voltage I could get was 5.3volts, so I guess I can rule out receiver battery voltage problems. I shall try repositioning the aerials, but after that I'm at a loss and a little worried I might not be so lucky if I lose control again.

Thanks for the replies guys, I take on board your comments. The voltage problem would be an answer to what happened as all the models are running 4.8volt receiver packs, and are using standard servos (futaba s3001), the incidents all happened in the first or second flights with fully charged packs, so battery drain I feel would have been minimal. I will do some more research on suggested voltages to put my mind at rest.

Hi all, over the last couple of weekends I have nearly lost three different planes while using the above combination. All have been glow powered sport models and all have shown the same symptoms ie. while the models were banked in a turn, they have all shown a momentary loss of control and have rolled over on their backs, I have managed to regain control only because I had sufficient height. The receivers show no signs of having lost the signal and when I carried out a range check afterwards they all exceed the 30M range. Are there any known problems with the AR400 receivers or the DX6 Transmitter ? Have I done something wrong installing these receivers in glow powered models ? Many thanks Michael. Edited By Michael Oliver on 22/08/2015 18:02:19

Hi there, I recently picked up a Skyleader Skymaster Bi Plane from the recent Headcorn show, and will be hopefully taking it out for its maiden flight under my ownership after giving the airframe a thorough check over. I have replaced the servos it came with and the control linkages and installed a new engine. I have tried to find the C of G from the Interweb, and have also tried several calculations, but have not found a reassuring answer for the C of G for this model, I feel I am somewhere near, but would like to be absolutely sure before flying. Any definitive answers out there ? PLEASE. Michael.

Hi all, I have recently had a problem with two of my Spectrum receivers (AR6210/AR6100). Both twitched the servos on initial switch on, but then nothing, no orange lights, no response what so ever. The first time was with the AR6100, which is in a Electric powered model, and I put the problem down to a possible power spike when plugging the battery in, but it then happened to the AR6210 which is powered conventionally by a 6 volt battery/switch arrangement, all the batteries were fully charged. Both receivers had to be rebound and have worked faultlessly since. My transmitter is a DX8. Any ideas as to what happened, and any way to prevent it happening in the future ? Thanks Michael.

Thanks guys, I tried the Fairy Power Spray and it did a good job. Michael.

I have a few old/vintage engines which I would like to clean up the the crank cases of, any ideas of what I could use to brighten them up without the risk of damaging them, thanks Michael. Edited By Michael Oliver on 17/08/2014 19:32:05

Hi Simon and Allan, the ball link at the servo arm is 10mm from the servo centre screw (as per the instructions), it is just about possible to drill another hole in the arm to shorten the throw, but  what bothers me is that I have followed the instructions to the letter, so this action should not be required. I shall give it a go though, thanks, Michael.  @import url(http://www.modelflying.co.uk/CuteEditor_Files/Style/SyntaxHighlighter.css);@import url(/CuteEditor_Files/public_forums.css);

Hi all, I have just about given up trying to set up my GP750 gyro. I cannot get the Gyro to accept the limit points during the set up procedure. I am using an Align DS 520 servo, and have set up everything as per the instructions for the TREX 450, I have checked everything over again, and tried to set up the gyro, but tail servo still stalls as it still travels to far, HELP PLEASE. Michael.  @import url(/CuteEditor_Files/public_forums.css);

Hi all, (again) having recently made a posting on this topic, I have another related question having decided I would stick with 35Mhz for my recently purchased T-Rex 450 . Should I use a PCM receiver ?Thanks again Michael.    

Hi all, I know this topic has been touched on before, but please indulge me.I have just bought a 450 size electric heli and I am worried about possible interference from the electronics, hence the thoughts about using 2.4.My question is two fold. 1. Which is the best conversion for a FF9 transmitter ? 2. as this is the only model I can see myself flying on 2.4, how easy is it to convert back to 35Mhz say at the field so I could fly another model and is this an advisable thing to do?Many thanks Michael.