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HelicopterThunder TigerOther › Hover and FFF?
03-13-2003 04:34 PM  14 years agoPost 1
SteveO'

rrApprentice

St. Louis, MO

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If I have my Rap50 V1 trimmed so that it's fairly stable in hover, in FFF I have to give up elevator to keep the nose from pitching down. If I give back/up trim to keep FFF level, then at hover, the heli wants to creep backwards...

Any ideas on why and what I can do? I recently switched from stock paddles to MA 3D paddles. I hope they are not the problem cause I really like the performance increase.

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03-13-2003 05:00 PM  14 years agoPost 2
Kurt64

rrVeteran

Salladasburg, PA

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I keep mine trimmed so that it wants to move forward slightly when the sticks are nuetral. I always have to apply a little back cyclic to keep it in one place while hovering. It never affected forward flight for me....maybe I just got accustomed to it.

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03-13-2003 05:02 PM  14 years agoPost 3
tadawson

rrElite Veteran

Lewisville, TX

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Setup two flight modes, with independent trim settings, if your radio will support it. That way, you get the best of both worlds.

- Tim

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03-13-2003 05:33 PM  14 years agoPost 4
Waldo

rrVeteran

Middle of the corn​patch (Iowa)

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How does the helicopter balance?

[b]Bill[/b]

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03-13-2003 05:37 PM  14 years agoPost 5
SteveO'

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St. Louis, MO

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It's balanced... boom is level when I hold it up with the flybar.

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03-13-2003 05:44 PM  14 years agoPost 6
Waldo

rrVeteran

Middle of the corn​patch (Iowa)

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Double check the alignment of the paddles, make absolutely certain that they are level and lined up with each other and the control arms. Other than that some paddles can be pitchy in forward flight, the KSJ paddles are know for this, the MA's should work just fine.

[b]Bill[/b]

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03-13-2003 06:00 PM  14 years agoPost 7
SteveO'

rrApprentice

St. Louis, MO

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Thanks guys - my paddle gauges show they align with each other. I can set up different trims specific to flight modes with my 8103 but I was hoping not to have to do that.

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03-13-2003 06:07 PM  14 years agoPost 8
Raymond

rrApprentice

Northern Ireland

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Thanks guys - my paddle gauges show they align with each other.
But also check, like Waldo said, that they are LEVEL not just in line with each other or try pointing them down a little

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03-13-2003 06:31 PM  14 years agoPost 9
Raj Patel

rrApprentice

Humble, TX

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paddles

I too have had the KSJ and Miniature Air white 3d paddles cause pitching in forward flight.

I have custom tools to accurately set the paddles and they still pitched down in forward flight.

I switched to v-paddles and that helped fix my problem.

Remember, the paddles need to be aligned to each other and also totally perpendicular to the mainshaft.

Did you balance the heli with or without fuel and does it vary in either condition??

Raj

R. Patel, International Captain, ConocoPhillips

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03-13-2003 06:38 PM  14 years agoPost 10
meltr

rrApprentice

London, UK

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Holding the heli by the flybar isn't very accurate to check the balance
of the heli. Hold the heli up in the air by the grips with the heli on it's
side so the whole body can rotate around the main mast. Balance
is good if heli stays level, or be slightly nose down.

Mel.

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03-13-2003 07:13 PM  14 years agoPost 11
SteveO'

rrApprentice

St. Louis, MO

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I checked the balance with an empty tank. I'll try balancing by holding the heli out to the side by the grips tonight... I can't now cause I'm REALLY BUSY AT WORK

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03-14-2003 02:48 AM  14 years agoPost 12
pchuckie

rrVeteran

Pemberton TWP, NJ

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My 50 V2 does the same thing, only a few flights on it, and still working out the details

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03-14-2003 03:25 AM  14 years agoPost 13
SteveO'

rrApprentice

St. Louis, MO

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Well I just checked the balance on my heli by holding it out sideways by the blade grips and guess what, it's nose heavy. Holding it by the flybar didn't show that at all

That's got to be part of my problem with pitching down in FFF. I'll add a little weight at the end of the boom and be checking it out this weekend. I guess another thing I could do is use a boom mounted servo, that would shift the weight back and I might not have to add any.

Thanks guys, I'll let you know how it goes.

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03-14-2003 09:30 AM  14 years agoPost 14
Jack_R30

rrApprentice

MY

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My R30 did that too, what I do is hover in Normal mode (perfect trimed), FFF in idle 1 and idle 2 with little trim on the ele so that it will level when FFF.


Jack

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