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Now I remember why I 'shelved' my Heli's !!

Old 08-25-2019, 11:23 AM
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solentlife
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Default Now I remember why I 'shelved' my Heli's !!

I decided to dust off one of my 450 Heli's other day and I remember that I had retired it after it showed serious 'shakes' and spinning on the ground.

So I went through all the checks ... dismantled tail ... checked shafts .... etc. Re-assembled after cleaning .. light lub'g sliders etc. Made sure belt correct 90 deg twist ...

Found that tail blades were reversed. Gyro was reversed. How that happened I have no idea as she used to fly !!

Balanced blades ... straightened flybar .... set pitch ...

Outside definite improvement - still vibration there but nothing serious - in fact from new - this 450 always had a tendency to vibrate a bit ... but never stopped it flying well. Even had an experienced 3D guy put it through paces and he only commented on the Radiolink 6EHP radio being a bit basic !!

tail though was still erratic. There was no way I could even consider lift off ... but I wanted to at least get light on the ground to see gyro etc. working correct. I decided that tail servo was the problem and looked through a lot online about tail servos and was surprised to read about many people fitting larger higher torque servo for tail ... some even up to 26gr !!
I had a 23gr servo spare that has a 0.09 sec and fitted that ... it also has 4kg torque. Definitely better ... now the tail was answering commands and also more stable.

It having been so long since I had flown a full on Heli ... I kept it skitting about the deck getting used to sticks again. With an occasional glimpse of air under the skids and down.

I was feeling quite pleased but extremely nervous .. when BANG ! The tail control L link controlling the pitch of tail blades came off .. instantly she span - caught one skid and over she went. The language uttered would have made a Klingon blush !!

Back to bench.

Yes now I remember why I decided Heli's and myself are not a good match !!

Will I try again ... yes - one more but then if no joy - its shelf again !!
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Old 08-25-2019, 10:43 PM
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Panther
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I will never go there again. You have more b*lls than me! $$$$$ every time I flew mine. I gave my 450 away. Turned out to be a good decision. No... a great decision.
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Old 09-02-2019, 09:31 PM
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AEAJR
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Never got into helis. I have a couple of indoor 3.5 channel micros but that is it.
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Old 09-02-2019, 10:20 PM
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solentlife
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I must admit that I enjoy my little WLToys 911 .... and the 959 Quad ... plus the various 'toy quads' I was given to review ... but the 450 is far more challenging.

I rebuilt ... new link etc. I even fitted a better sized servo for tail ... new ESC as the old was causing the motor to not be steady ...

All was much better and I started to do hops to about 2m high and back down again ... she was getting into the typical newbies toilet bowl effect ... which needs time and practice to learn again control subtlety ...
I was just getting used to it when BHAM !! She dropped onto her side ... cartwheeled ..

Main shaft
Blades
Tail boom
Feathering shaft
Flybar
and the main rotor ball link that had come unclipped causing the crash !

She's rebuilt again ... just got to build up the courage to try again !!
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Old 09-04-2019, 02:12 AM
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Panther
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Give it up NOW Nigel, for gawds sake.... NOW!!!!
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Old 09-04-2019, 09:22 AM
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solentlife
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Glutton for punishment !

Fitted training gear yesterday .... to try and reduce the carnage mistakes create !!

I was never a good Heli flyer ... I could lift into a reasonable hover but never got further than an odd drift side to side ... so having left it for so long - its back to base one level.
At least its giving something to post !!
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Old 09-15-2019, 09:37 AM
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CHELLIE
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Heli's were never my cup of tea too, I could just do simple basic flying with a Heli, Heli's = 80% Maints and 20% flying time
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Old 09-15-2019, 09:40 AM
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solentlife
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Most of my pals who were also flying Heli's have sold them and moved on ..... when asked they reply that flying is more important than being a mechanic repairing all the time !

My 450 is still in one piece ... sits there on the bench and I can feel it taunting me to have another go ...
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Old 09-15-2019, 09:47 AM
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CHELLIE
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YEP, I started with a Shogun 400 size heli, it had a brush motor in it, it flew ok, then i put a brushless motor in it and that scared the heck out of me I throttled it up like it had the brush motor in it, and it really took off vertical

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Old 09-15-2019, 10:43 AM
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Glad I'm not the only one LOL
Look at that grass! Haven't seen grass like that for about 40 years. (True)
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Old 09-15-2019, 02:35 PM
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solentlife
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Originally Posted by Panther View Post
Glad I'm not the only one LOL
Look at that grass! Haven't seen grass like that for about 40 years. (True)
You wanna come over my place and cut the grass every few days !!
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Old 09-15-2019, 11:27 PM
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I haven't mowed the lawn for a couple of years at least due to the drought. I use the ride-on to blow away dead leaves. Very dusty when it blows.
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