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HomeAircraftHelicopterFlybarless Rotor Head SystemsAlign 3G › Landing cross wind
04-08-2010 09:14 PM  8 years agoPost 1
GC1

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Manchester, UK

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I seem to recall a post recently about landing cross wind with an Align 3G system. My friend has one on a 700 and reckons it rolled onto its side when spooling down because it was cross wind. Is this my imagination or do you have special considerations with these systems?

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04-08-2010 09:51 PM  8 years agoPost 2
LaurenceGough

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UK

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I doubt very much this would effect anything.

More likely they gave a large amount of cyclic while on the ground, a flybar may be forgiving but a flybarless system would want to tip it over.

Regardless, I've always been careful with flybarred helis so never noticed this myself with V-Bar when I upgraded.

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04-08-2010 10:02 PM  8 years agoPost 3
Si_B

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West Sussex

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This was why I took the 3G off my 700. Not sure if the landing cross wind caused the tip over, but as my 700 was spooling down it just wnet over. Too quickly to respond on the sticks....very disappointing. Since that incident, I've never landed cross wind with either my 600 or 500 with the 3G, and I don't take my eyes off the heli until the majority of the momentum has gone from the blades.

I was gutted when mine tipped over, was flying really well up till that point. Decided to continue my learning curve with flybarless on my smaller machines.

Cheers,

Simon

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04-08-2010 11:37 PM  8 years agoPost 4
MrMel

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Gotland

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I doubt very much this would effect anything.

More likely they gave a large amount of cyclic while on the ground, a flybar may be forgiving but a flybarless system would want to tip it over.
+ 1 with the addition of rather ground resonance would cause the gyro to act up.

Cross wind tipping it over, not a chance.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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04-08-2010 11:46 PM  8 years agoPost 5
Si_B

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West Sussex

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Well there was no ground resonance causing mine to tip over.

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04-08-2010 11:58 PM  8 years agoPost 6
MrMel

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Gotland

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Well there was no ground resonance causing mine to tip over.
I'm not talking about ground resonance that causing the heli by itself to tip over, I'm talking about enough to cause the gyro not see movement (increased vibrations) which you always get on the ground.

Unless you have a onboard logger for vibrations, you wouldnt know if that's the case or not.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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04-09-2010 03:01 PM  8 years agoPost 7
gogster2k

rrNovice

Montebello, CA. USA

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As a precaution when I land, I always hit the throttle hold and pull the collective to full negative once the heli's on the ground so there isn't any possibility of the heli having enough blade energy to pull it over. I fly mines in windy days and have not encountered any tip over tendencies when landing so far. I have a TREX 700 FBL converted to electric. I fly at the Santa Fe Dam Radio Control Modelers flying field on So. CA. and it can get windy when the Santa Ana's kick in.
Hope this helps!

Gogian

I can Fly!

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04-09-2010 03:07 PM  8 years agoPost 8
bkervaski

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Birmingham, AL, USA

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I don't know the technical reason, but the trick is to not over correct like you would with a flybarred heli. Just correct like you would 10 feet off the ground.

My best guess is that as the disc slows on a flybarred heli it requires more pitch for the same amount of correction, but not with flybarless, same inputs, the flybarless gyro takes care of the rest.

Takes a bit of getting used to, but I'm back to doing sliding autos with the V-Bar.

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04-09-2010 05:29 PM  8 years agoPost 9
GC1

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Manchester, UK

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Thanks for the replies. We tried again today and I think it was due to over input.

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04-09-2010 05:58 PM  8 years agoPost 10
MrMel

rrProfessor

Gotland

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With any FBL you pretty much loose the "self-centering" which paddle machines has, if you release the stick with paddles it level it self quite well, that's not the case with FBL in same aspect, it can be very strange to newcomers and cause a tipover.

Basically you need to steer it at all times.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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04-09-2010 06:00 PM  8 years agoPost 11
sharam

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Northern California - Fly at Morgan Hill Field

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It's all in the cyclic input. I have no trouble landing my 450 3G in high winds. You just need to get your head around what the 3G is doing and what your thumb is doing. I think the best way to think about is to almost let the 3G take it down with minimal input from the pilot.

Verba volant, scripta manet

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04-09-2010 06:17 PM  8 years agoPost 12
BrainDrain_dx

rrKey Veteran

Wichita KS

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As a precaution when I land, I always hit the throttle hold and pull the collective to full negative once the heli's on the ground so there isn't any possibility of the heli having enough blade energy to pull it over.
Same for me. I never land under power and I get full negative in as soon as possible. 0 tip tendencies.

KDS Agile 7.2/5.5 Chase 360 - SkyHero Spyder/Spy/Little Spyder
Sponsored by my Visa

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04-09-2010 07:17 PM  8 years agoPost 13
bkervaski

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Birmingham, AL, USA

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By the time I land in my autos there is no blade energy left anyway, lol

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04-09-2010 09:33 PM  8 years agoPost 14
VinceY

rrApprentice

Newnan GA

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+1 bkervaski, some times I'm out of blade energy before the auto is finished!

Team Synergy/ Rail Blades

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