Hi Mo
I can't see that a gear failure would cause a tail drift . Usually when they go it's a quick thing as you discribed on the 3rd flight.
One of the main causes of drift is battery condition - when a rx battery is on the way to flat the first clue you get is the gyro will start to drift and eventually let go,check your battery!!
Gears can strip as a result of a crash.
Dave D

Hi Dave.
Your opinion of the damage being caused by my hard landing is something that I can agree with after sleeping on it, and thanks for bringing this up.On the battery side I am using an MINH 1750 from Overlander, and it was topped right up according to my Super Nova charger.
The tail servo is a S9001 and brand new and has only just been fitted to the machine, but on saying that it is quite possible for that to be the cause, for having tried two gyro's with the same result, there is not much else in my opinion that I can look at.
I have ordered the complete gearing set for replacement, even though it was only the main gear that was ruined,and I will put a photo in my album shortly, to give you some idea of what the damage was.
Good of you Dave' to answer my call, and to tell you the truth I am not at the moment getting the pleasure that I anticipated from this sport,and if it goes on like this soldiering on my own for much longer, I will surely call it a day.
GOOD FLYING.
Mo.

Mo,

I feel for you mate......it can be so frustrating at times, but once its honed you'll be loving every minute of it.

I'd take a good look at that battery I have a supanova and they struggley with false peaks on NIMH batteries.

I have a 3000mah NIMH which I charge every saturday, starting with .5amp, the 1.0amp then onto 1.5amp I get on average between 1500 to 2000 amp in each week.

The only true way to find out how much was in it is to dis-charge it.....then I suspect you'll be surprised at how much was actually left.

Keep your chin up mate

Hi Mo
Sorry to hear your down in the dumps - unfortunately it's part of the hobby.
I've done two heli's in an afternoon before and those days can be a very low point in the hobby, not as low as when I had my car done visiting my father in hospital - they took a fully rigged Millenium . a Hirobo RG Shuttle and a JRVoyager electric not to mention my flight box and a ZAP transmitter.I felt like packing in then but didn't,"never let the bas##ds get you down".
One of our groups favorite sayings is"there's nothing much wrong with that helicopter that a few hundred pounds won't put right !!" It's easier said than done!
Give it another go - think about what was the common factor in both crashes if it's battery and gyro -change them or beg borrow or steal one to try and eliminate a piece of the puzzle .
Regards Dave

Hi Dave and Stuart.
Many thanks for the help you are giving me and it is very much appreciated.It is not very good for moral to be constantly flying on your own, and if you can share the highs and lows it does make life a little bit more fun.
I am sure it is not a battery problem for I also own a very expensive workshop supply and charger, and I have the means of spotting a low supply at once.
After Dave' suggested that my hasty landing could be the cause of my stripped gear,I am of the opinion that he is right.
Having put that out of the way, the suspicion has now turned to the servo, for it would be the worst of luck to have two duff gyro's.
With a bit of luck my parts should be here tomorrow, and I will do a rebuild and replace that tail servo, and then keep my fingers crossed.
Having had the tail break away twice in a fortnight, (the first was a pitch slider breaking)I am getting a little nervous in flying the helli more than a foot off the ground.
The first helli that I owned was a sport, and I went right through the learning curve with very little trouble,I just wish that I had kept the thing, for this one has been a right pain.
I have put a couple of pics in my gallery,but if you look at me flying,it is like that for me every time,a bloody great field, and me flying on my own.
BELIEVE ME IT IS NOT VERY NICE.
GOOD FLYING.
Mo.

Hi Mo,

As you know I have had a few tail servo failures recently, the symptoms you describe is pretty much identical to those that I saw when the servo's failed.

In my case the servo motor appeared to overheat, causing the servo to become less and less effective until it let go completely.

I am sure that replacement of the servo will cure the problem.

Cheers,

Pete.

The tail servo is the hardest worked on the Helicopter - If you run with a sensible gain on the gyro this workload will be reduced with the chance the servo may last longer.
"Jason Kraus - who really does thrash a heli around only runs with about 35/40% gain on his gyro's".Good enough for me.
Dave D

Hi.
It really is great of you chaps in the way you help duffers like myself and believe me the difference it makes in getting to grips with this hobby is really gratifying.
Having no access to an experienced flyer for the tips every novice should have has made my learning hard work,and it is only with the help received from these pages that I am now flying in a confident manner.
Raptorite' has given me so much help that I cannot think of how I would have managed without him,but feel it is unfair to take up so much of anothers time which could be spent flying their own helli's.
Flying on my own, which I do most of the time, is not a pleasurable experience, and do not think it should be allowed on the safety front,and at times I do get down in the dumps not having the company when at the field,but I feel this is once again a case of grit your teeth and get on with it, for having done a lot in my lifetime, I can honestly say that the buzz you get from flying helli's certainly needs some beating.
Will keep you guys posted,and hopefully we may get some good news from this miserable quarter.
THANKS AGAIN.
GOOD FLYING.
Mo.
I HAVE RETURNED THAT CRATE OF KLEENEX BACK TO THE SHOP.

Hi Guys.
Parts arrived from Midland today, and helli is back together as good as new.
I rigged the tail servo up to a sprung test rig complete with the gyro,and made it work hard for an hour.
The damn thing did not miss a beat and never even got warm.
When I picked the model up after my bump, I found the tail servo pushrod had come off the ball,this I put this down at the time to the shock of the landing,can anyone out there please tell me if they have heard of them coming apart when flying,for mine is mounted upside down.
I am now seriously thinking of putting all the same electrics back into the model and seeing what happens,I had fair warning last time, so if I see any drift in the tail I will get it down like crazy,and then do a good check at the field.
To say I am puzzled is an understatement,so if anyone out there can come up with anything else, I will again be most grateful.
GOOD FLYING.
Mo.

Hi Guys.
I have swopped the tail servo over with the one off the pitch control,this means that I now have the 9252 on the tail, and a 9001 which was the suspect servo for the pitch control.If any of you chaps can find any shortcomings with this configuration please let me know,it is far too windy for comfortable flying today, but hope to give it a go and loose some sweat tomorrow.
GOOD FLYING.
Mo.

Hello all.
Arrived at our field about 10.30 this morning and was suprised to find I was the only one at our field,it must have been a bad weather forecast that kept the plank flyers away, but I found the weather was perfect for flying.
I fired up my Moskito and lifted off into a very nice hover with only the minimal tweaking of trims, and started to loosen up and enjoy my flying forgetting about my aformentioned problems,suddenly with no warning and at about six feet up that damn tail again went haywire and started to gyrate rapidly in a clockwise direction.
Mindful of the damage caused the last time I attempted an auto, I gave it a bit of pitch to gain height and to give me a bit more thinking time,but my auto was again not a very good one, and I ended with a huge bounce which my undercart did not take very kindly to.(SEE PHOTO)
I have not at this time inspected the helli for any more damage but I am hopeful that everything else is O/K.
To say I am gutted is an understatement, for I just do not know what to do to get round this problem,I can only think now that I have two duff gyro's for everything else has been tried and tested.
I have a Conquest ready to go that I have been scared of taking to the field for it's maiden flight,and this business is doing nothing for my nerves, I am going to chance my luck this week with that helli before I end up in a corner talking to myself.
If I am still posting topics on this forum next week you can be sure I have been successful with the Conquest,If I am noticably absent, you can also be sure that I have gone back to playing with things that stay on terra firma.
GOOD FLYING thats all I had hoped for.
Mo.


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Hi.
This site has gone so quiet that I now feel that I am indeed talking to myself,WHERE HAS EVERYONE GONE, for I have not had one reply to my last couple of mails.If the weather has improved so much in their neck of the woods that they are flying all the time,I just hope that they are enjoying more success than me at the moment.
I took the Robbe Conquest to the field today and apart from having a reversed throttle found everything more or less as it should be.
With the first flght I found it to be veeeery sensitive and had quite a time getting it down in one piece, for the helli was vastly overcontrolled.
I then adjusted the ATV on the aileron and elevator down from 80% to 70% and put in an exponental of -30 on both.
This made the second attempt much more stable but still found the pitch to be very sensitive in the fact that one minuet it was sitting on the ground, and then with hardly any stick movement was 50 feet up in the blue.
I purchased this machine second hand and apart from uprating servo's ect,I had not altered the setup too much,it had obviously been flown by a more advanced pilot than myself, but think that when sorted out 100% it is going to be a great helicopter.
I lost a bit of sweat at first but came home **** a hoop,so it looks like I will be worrying you guys again in the future for some more of your good recommendations.
How should I set up the pitch to stop my helli behaving like it was a rocket?.
I HOPE THAT I HAVE NOT FRIGHTENED YOU ALL AWAY WITH MY SILLY QUESTIONS.
GOOD FLYING.
Mo.

Hi Mo....

I know its been very quite, I was just thinking maybe it down to the weather...in some places I here its been great.

Unlike the NE its been absolutely rubbish putting it mildy....Sun = Gales, No Wind = Down Pours.

Can't seem to win these days....

I broke my skids a few weeks ago its a right bumer, well atleast its only a small cost to repair......she does look very clean and nice your heli....

I got your PM I'll send a message back tonight.

Thanks for the reply Stuart',I was getting as lonely on your site, as I do at our field.
Sorry to hear you are having problems of your own, and I would be more than willing to swop my tail puzzle with you, and replace your landing skids for you.
The weather down this way has been generally good, and only high winds would have stopped anyone from flying for just one day.
Look forward to the old hands coming back to the forum, for the banter got quite enjoyable.
All The Best Stu'.
Mo.