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HelicopterThunder TigerOther › raptor 50 problem
03-29-2005 08:48 PM  13 years agoPost 1
nitro.burner

rrNovice

ireland

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hi, when in fff my raptor 50 keeps giving me the impression it wants to tuck under and i have got to keep giving it back evalator to correct it .
every thing on heli is stock any ideas welcome. cheers

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03-29-2005 08:55 PM  13 years agoPost 2
MikeSherman

rrVeteran

Franksville, WI

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Have you checked your c.g.? It should be level w/half tank of fuel.

What paddles are you running? Light paddles with sharp leading edges will cause your heli to pitch down during forward flight too.

Mike

Team QuickUK Pilot
Team Heliproz

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03-29-2005 09:03 PM  13 years agoPost 3
nitro.burner

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ireland

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im using standard black paddles centre of gravity is ok

payback time says mother earth

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03-29-2005 09:48 PM  13 years agoPost 4
DOKEY

rrProfessor

Northamptonshire UK

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Out of intrested how are you checking your cg ?? where are you holding the heli to find the cg.

Ryan.

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03-29-2005 10:22 PM  13 years agoPost 5
MikeSherman

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Franksville, WI

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Dokey - if you are asking me:

Hold the heli by main rotor grips with the disk perpendicular to the ground. Move the tail horizontal to ground and release - note heavy end. Adjust electronics as necessary.

Mike

Team QuickUK Pilot
Team Heliproz

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03-29-2005 11:29 PM  13 years agoPost 6
SLiebl

rrApprentice

Lancaster, PA - USA

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How about a mis-aligned paddle... regardless of weight, an out of line paddle could be causing you problems.

-Steve

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03-30-2005 07:59 AM  13 years agoPost 7
nitro.burner

rrNovice

ireland

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i was checking c/g by holding flybar close to head but will try blade grip method. cheers

payback time says mother earth

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03-30-2005 02:04 PM  13 years agoPost 8
concept1

rrKey Veteran

Youngstown, OH

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also what blades are you useing, are they tight in the grips, what dampers are they worn? do you have any play in your washout, if you hold both blades do you get excessive slop ( more then .5 degrees) meaning if you twist one blade will it twist more then .5degrees when I had a worn washout I had 1.5 degrees of slop in the blades

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03-30-2005 03:13 PM  13 years agoPost 9
drdot

rrElite Veteran

So. California, Orange County.

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My two cents..

Flybar paddle alignment...this causes more "weird" raptor pitching issues than anything else....

John.

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03-30-2005 06:23 PM  13 years agoPost 10
DOKEY

rrProfessor

Northamptonshire UK

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Sorry Raptor30Heli I was asking nitro.burner.


nitro.burner, checking the cg by holding the grips and tipping the heli on its side is TBH an accurate way of checking the cg, using the flybar is not a good way atall.

Ryan.

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03-30-2005 10:54 PM  13 years agoPost 11
nitro.burner

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ireland

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hi. i am using SAB carbon firber main blades with stock black head dampers. heli is nearly new so not to much slop. paddle alinement looks ok and i tighten main blades so that they just fall if i lift heli upright.

payback time says mother earth

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03-30-2005 10:58 PM  13 years agoPost 12
SLiebl

rrApprentice

Lancaster, PA - USA

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I'd run your mains tighter than that. I run mine rather tight.
What kind of flying do you do?

-Steve

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03-31-2005 07:45 AM  13 years agoPost 13
nitro.burner

rrNovice

ireland

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im starting to try a bit of inverted and mild 3d

payback time says mother earth

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03-31-2005 10:05 AM  13 years agoPost 14
nitro.burner

rrNovice

ireland

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got round to checking cg with blade method and its very tail heavy.
even with heavy duty battery now fitted it is still tail heavy. time for some lead up front.The heavy tail is coming from my tuned pipe it finishes of half way down the tail this does not help to get cg correct. cheers

payback time says mother earth

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03-31-2005 12:18 PM  13 years agoPost 15
JuanRodriguez

rrProfessor

The Villages, Florida

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nitro....
Just an observation......

Didn't you say that the heli tends to "tuck under" in FFF ??? (meaning that the nose drops) That would imply that the heli is NOSE heavy, thus, the up elevator to prevent that from happening.....

But, since you found your CG to be considerably aft, then the problem you are experiencing most likely has nothing to do with CG.......

I would agree with the comments from others that the problem is probably paddle related.....

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HelicopterThunder TigerOther › raptor 50 problem
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