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10-24-2012 11:21 PM  5 years agoPost 1
v58 fuy

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UK - Kent

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Guys,

I have recently built and flown my first Logo, a Logo 500se combo (scorpion 4025-1100, kontronik 100lv, 600mm edge main blades).

It generally flies great but I have two issues, which I would appreciate your help with:

1) The tail has developed a 'ticking' sound when the main rotor I spun by hand.

2) Using the mini vbar, the collective feels super sensitive, to the point the heli is hard to land. Is the only way to cure this, introduce a curve in the collective?

Regards,

Daid

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10-24-2012 11:36 PM  5 years agoPost 2
wrongler

rrProfessor

Brewerton, New York

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Ticking could be a tweaked belt. Also check the teeth on the tail where the belt rides on it.
You can just add a little expo to make it less sensitive.

Bill Whittaker

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10-24-2012 11:50 PM  5 years agoPost 3
johnnie eagle

rrApprentice

Florham Park, NJ 07932

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Ticking noise
The ticking could be the belt. But the collective shouldn't be sensitive if it's set up properly. In normal I only set up 5degrees of negative and use a curve and it hovers and lands great.

Team Minicopter - Peak Aircraft, Team Kontronik USA

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10-25-2012 06:48 AM  5 years agoPost 4
HeliMan Dave

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Suburban Chicago

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The ticking is likely a belt and/or pulley issue. I had the same on my 600SE. If you loosen the belt just a touch it may go away. Mine did.

As far as collective, you could add expo or flatten your pitch curve around center but I wouldn't recommend it. Just keep practicing your landings with it. It will get easier.

If you're not at least doing baby autos (3-6 feet off the ground) try it.

IMHO, pitch curves should be kept the same in all modes.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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10-25-2012 07:20 AM  5 years agoPost 5
EmmDee

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Seattle, WA

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Also have a look at the bearings in the tail. That was the fix for a tail tick on my 600 SE.. Mine flew fine for a long time, but the noise became a blown bearing.

Assuming that you've double checked the assembly? You won't be the first to have it fly fine, even if assembled incorrectly..

On the collective sensitivity - turn down your agility in the swash menu in the vbar software about 10 points. Repeat adjustments until it feels right for you. I'm assuming the setup itself was straight forward?

Good luck getting it sorted.

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10-25-2012 12:24 PM  5 years agoPost 6
johnnie eagle

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Florham Park, NJ 07932

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@ heliman Dave
Just curious. Why do you think the pitch curves in normal should be the same as idle ups ? Isnt the point of normal to takeoff and hover ?
You can hover with any pitch curve, but if you want to hover like F3C like I do, you need a flattened curve with only a little negative.
If its set up properly it makes for a sweet flying helicopter. When I hover its like its on a string.

Team Minicopter - Peak Aircraft, Team Kontronik USA

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10-25-2012 06:18 PM  5 years agoPost 7
HeliMan Dave

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Suburban Chicago

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Johnnie eagle,

Because if you accidentally hit your switch in flight, your pitch change could cause you to crash. If all pitch curves are the same, you won't have any surprises.

I (like many) don't even take off or hover in normal. I switch to Idle-1 before I release throttle hold. Then heli spools up nice and smooth and I'm up.

While you can hover with any pitch curve, I like to keep that point the same in all modes. Too many other distractions to have to remember you will have the stick at a slightly different position in a different mode.

F3C types do have their preferences and what might be good for one may not be for the other. I fly mild 3D and prefer things like pitch and throttle curves simple.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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10-25-2012 08:16 PM  5 years agoPost 8
Ronald Thomas

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Gainesville, Fl, USA

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I (like many) don't even take off or hover in normal. I switch to Idle-1 before I release throttle hold. Then heli spools up nice and smooth and I'm up.
+1!!! I go as far as setting my normal mode to 0-0-0-0-0 so that I never have to worry about the ESC spooling up on me. I just flip back to normal to auto.....only one switch to worry about ..Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-25-2012 08:51 PM  5 years agoPost 9
v58 fuy

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UK - Kent

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Guys,

My first post was a little vague, let me clarify better then you can help (hopefully).

Firstly the 'ticking' noise from the tail. When the heli was first built and flown there was no noise, but now after about 10 flights or so, the tail now makes a 'ticking' sound when you spin it by hand, and on slow down when you've landed.

Secondly the collective, I'm not new to flying, and currently run about +12/-12 ish in all flight modes. When I said the collective is too sensitive, I'm not sure it's too sensitive, it's a bit like it's on a knife edge, or that it has a huge amount of expo on the pitch.

David

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10-25-2012 09:59 PM  5 years agoPost 10
johnnie eagle

rrApprentice

Florham Park, NJ 07932

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@dave and Ron
I understand why some guys set up their helis like that. I have done that also on some of my heli's.
All I am saying is that if you want a nice controlled rock solid hover that is easier to fly, you need to set it up like an F3C heli. That means a lower head speed, less collective range and cyclic expo. I guess I'm a little old school from my contest days.

Team Minicopter - Peak Aircraft, Team Kontronik USA

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10-25-2012 10:13 PM  5 years agoPost 11
v58 fuy

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UK - Kent

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I don't think it's to do with how the pitch curves are setup, they are simple linear straight lines the same as I've always run.

I noticed it originally in slowish forward flight, I was struggling to maintain a consistent height. Then I tried both upright and inverted hovering - this is where I noticed it worst, if the heli climbs a little, come of the pitch and the heli falls sharply requiring a large amount of opposite pitch to correct, but then you end up climbing again.

I did try the agility setting and I think things were better - but how did this affect the collective?

David

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10-26-2012 04:37 AM  5 years agoPost 12
HeliMan Dave

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Suburban Chicago

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@ Johnny,

I was just responding to David about why he might NOT want to "introduce a curve in collective" to cure his "super sensitive collective". FWIW, I've never felt mine was too sensitive and I run linear 12/12.

I never have a problem landing as HS is decaying in throttle hold.

@ David, is there a chance you have negative expo somehow enabled in the V-Bar software? If not, I'm not sure unless it's really just your thumbs/fingers.

FWIW, both my Logo's are super stable in the hover both upright and inverted. If you lower your V-Bar agility number, the heli will be a bit more "lively" I think mine's at about 90 on both.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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10-26-2012 05:09 AM  5 years agoPost 13
smartguy

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Corona, CA

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Ticking noise is cause by your belt getting loose and slapping in the boom. Check the tension from the open tail and make adjustments. After your done go get some Static Guard (from the laundry department) and spray the belt to prevent static. Then put alittle thin CA on the boom where it enters into the frame(this should prevent your boom from moving). Go back into Vbar set-up mode and select none 3D, or like someone suggested adding EXPO, +35 Ail, +35 Elev. Then go fly

Your not an expert because you seen it!!

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10-26-2012 09:17 PM  5 years agoPost 14
v58 fuy

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UK - Kent

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I'm going to do some bench checking and software investigation to see what I can throw up - will report back.

David

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10-27-2012 04:42 AM  5 years agoPost 15
Paul Woodcock

rrElite Veteran

Dubai - United Arab Emirates

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Hi

What rpm are you at?
High rpm can make for a 'jumpy' hover...

Regards
Paul

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10-31-2012 12:25 AM  5 years agoPost 16
v58 fuy

rrVeteran

UK - Kent

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Guys,

Had another fly today - man I wish I'd got a Logo ages ago.

Anyway, today was a far bit cooler than the other day, and there was no real appreciable tail ticking, so perhaps last time out the belt had gotten a bit on the tight side - so all good there.

The collective still needs a bit of work, I've narrowed it down to the fact that when in a hover and you give a collective input to make the heli fall downwards ( either upright or inverted), then add a collective command to arrest the descent, it seems to take a large stick inputs to achieve this.

Still living this heli,

David

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