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HelicopterHIROBOOther › X-Spec or Freya
09-05-2003 07:49 PM  14 years agoPost 21
mrNoodles

rrProfessor

Borlänge, Sweden

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And its 2 bearings in one bag

/Fredrik
'Hm now I just have to find out where to connect the GV1 sensor to the Jazz80 ESC.

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09-05-2003 07:50 PM  14 years agoPost 22
invrtd

rrVeteran

Victorville CA

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pushpull

0404 618 third bearing block Price: $23.94 plus $7.50 for bearing

0414 220 - T TYPE PITCH LEVER SET Price: $39.60

Clark

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09-05-2003 08:00 PM  14 years agoPost 23
Andi G

rrVeteran

Switzerland

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Hi,

thanks a lot! Are you telling me that this t-lever is almost 10% of the kit cost?
I think there are some do it yourself push pull tips around, now I know why

Andi

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09-05-2003 09:16 PM  14 years agoPost 24
kirk

rrVeteran

Northern, Colorado

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Fins

The stock Freya fins are worth upgrading. The tail fin is about as stiff as the milk jug canopy. I am not knocking the machine at all I am just saying if you hit the tail on the ground landing or do a tail sliding auto chances of the stock find bending and allowing the tail blades to strike the ground are pretty good.

As far as relibility goes the freyas that I have had were just fuel and fly helis that performed great...

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09-05-2003 09:17 PM  14 years agoPost 25
col

rrVeteran

U.K. Ipswich.

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i must be strange !!

i like the extra weight. seems to be more stable than lighter helis iv'e had. power isn't a problem at the moment with the c spec.
just wish i could get above 1650 on the head without the tail going crazy...
there is a bad vibe comming from somewhere which is really upsetting it.

colin..

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09-05-2003 09:31 PM  14 years agoPost 26
Agilefalcon

rrKey Veteran

Fort Worth, Texas

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Colin:
Are you running your belt too tight?

If you run the belt too tight, you can get a bunch of tailboom vibrations. You should be able to take a small screwdriver and at the front transmission easily move the belt to nearly the middle of the boom.

Another trick is to put small wheel collars on the fly bar. Push them both to the center as far as they will go (against the bird cage). Then take one of the collars at a time and move them out along the flybar. If the vibration decreases, continue until you find the optimum position.

This works because what might be happening is the blades are not flying equally (lead and lag). The weights help position the average CG back over the main shaft.

Chris Berardi
Team BobbyJack's Hobbies

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09-05-2003 10:27 PM  14 years agoPost 27
invrtd

rrVeteran

Victorville CA

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underslung head

With an underslung rotor head like the freya has, compensating for the lead lag of the blades or coriolis forces is done by the head itself. If you would like more info on it, email me direct and I can email you some diagrams and pics that explain this more.
unless you are talking about the paddles and not the blades.
Also with the long flybar the paddles do tend to lead and lag.
In terms of belt tension, I set the tension so when I hold the tail and try to spin the head, the belt pops once. I can actually almost push the one side of the belt more than half the distance of the tailboom with this method. Also you don't want the belt too tight because it will cause too much drag during auto's.

Clark

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09-05-2003 10:43 PM  14 years agoPost 28
col

rrVeteran

U.K. Ipswich.

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agilefalcon

thanks for the tip, i'll try that tomorrow. the belt tension thing i have visited a few times tight and loose whitch didn't solve the vibe so i'll go with your recommendation.

i'm beginning to think its the c spec , its V lumpy.

invrtd, thanks bloke but i'll skip the ground school . have to put up with it all week so its taboo at the weekends.

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09-06-2003 01:46 AM  14 years agoPost 29
Daniel Santana

rrApprentice

Tampa, Fl

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Invrtd,
I want to see you diagrams and pics. I do think Agilefalcon was talking about the paddels. I just bought a set of weights to try this... Seems something is slightly off and I have checked and rechecked all my shafts.

Thanks,
-Daniel

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09-06-2003 07:46 AM  14 years agoPost 30
jkelly

rrVeteran

Bedford, PA

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In my experience with the Freya, a couple of things that have caused a fierce vibration in mine besides the motor running too rich are:

bent main hub - (if heli has been crashed the yoke can be offset even tho it doesn't appear to be. You can dial indicate the hub to check.)

bent mainshaft

bent tailhub - (easily overlooked and can bend if contact is made with brush or ground and vibration in tail steadily gets worse with rpm)

a non dial indicated clutch shaft - (Bending the shaft for alignment may or may not work perminantly. For me, I found it best to shim the clutch to align the shaft).

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09-06-2003 08:15 AM  14 years agoPost 31
Augusto

rrElite Veteran

US

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For the part numbers used on the X-Spec go to the parts helper at the video server site:
For the parts Helper click here

Avant Aurora Ultimate

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HelicopterHIROBOOther › X-Spec or Freya
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