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10-09-2005 08:36 PM  12 years agoPost 1
cassat

rrVeteran

Alberta,Canada

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Hello

Setting up a new Concept heli with the TX6H radio. If I move the right aileron stick to the right, the swashplate moves right but the flybar doesn't seem to tilt. Is this correct?

Thanks

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10-09-2005 10:21 PM  12 years agoPost 2
BarracudaHockey

rrMaster

Jacksonville FL

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Swing the blades so that they are 90 degrees to what you would expect. Elevator input would occur on the fly bar when the paddles are left and right of center, aileron input would occur on the paddles when they are fore and aft.

Gyroscopic precession and all.

Andy
AMA 77227
http://www.jaxrc.com

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10-09-2005 11:35 PM  12 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

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Did you go with the EMS or the MMS setup, by the way?

Dave

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10-10-2005 12:06 AM  12 years agoPost 4
cassat

rrVeteran

Alberta,Canada

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Gyroscopic

Thanks Barracuda. I did read the gyroscopic procession according to Ray's manual and think I understand the phase.

What is EMS and MMS Dave ?

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10-10-2005 02:01 AM  12 years agoPost 5
Caliber1

rrApprentice

Fort Worth, TX

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Did you go with the EMS or the MMS setup, by the way?
I'm not sure that the TX6H supports EMS. I don't think that it does.

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10-10-2005 02:24 AM  12 years agoPost 6
cassat

rrVeteran

Alberta,Canada

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Seconds

Well,

I will ask a second time....what is EMS ?Maybe someone can be polite enough to tell me.

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10-10-2005 02:33 AM  12 years agoPost 7
Caliber1

rrApprentice

Fort Worth, TX

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Sorry about that. EMS stands for Electric mixing system where as MMS - Mechanical mixing system. Mechanical mixing has a separate servo for pitch, elevator and aileron. EMS uses all three servos at once to effect pitch, elevator and aileron on the bird. Advantages to this are the collective power of the servos, three working together are stronger than one. The caliber has two servo plates (EMS and MMS). The EMS one is fixed, where as the MMS one slides back and forth on bearings. Your radio has to support EMS, so you will have to look to the manual to check.

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10-10-2005 02:46 AM  12 years agoPost 8
roys55

rrApprentice

USA

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Electronic Mixing System. You need a radio designed for such an option. The computer in the radio moves all the servos in such a way that it spreads the load out over three servos, I like it.
Mechanical Mixing System. Just what it says, the servo mixing is done with a sliding tray and only one servo moves the collective. Works fine also.

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10-10-2005 04:18 AM  12 years agoPost 9
dkshema

rrMaster

Cedar Rapids, IA

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If the transmitter is a T6XH, then it does not support the electronic mix for an EMS (CCPM) swashplate. If the transmitter is a T6XHS, then it will support the EMS (CCPM) setup.

I asked if you were using the mechanical mix or the electronic mix to better answer your question.

It appears that you're using the mechanical mix. The bottom line is that for forward stick (down elevator in an airplane) the front of the swashplate will tilt down, the rear will tilt up. Back stick (up elevator) makes the front of the swash tilt UP, the rear tilt down.

Right aileron makes the right side of the swash tilt down, the left side tilts up. Left aileron makes the left side of the swash tilt down, the right side up.

If the swashplate moves correctly, the only other thing that can make the heli fly weird is that you didn't adjust the phasing correctly. Page 27 of the Instruction manual, steps one and two.

Once you get this adjustment made you can double check it by setting the position of the flybar so that it is perpendicular to the heli -- sticking out to the sides, the MR blades -- one over the boom, the other forward. Move the AILERON stick, the paddles should not move. If they tilt a bit when you move the aileron stick side to side with the flybars perpendicular to the heli and out to the sides, you need to rotate the radius block (the two-piece plastic part that the two pins slide up and down in) a tiny bit until the paddles stay put.

Full throttle makes the leading edge of the blades go up, the trailing edge go down (more positive pitch).

Right rudder should PULL the TR pushrod toward the front of the heli. If you turn the nose of the heli to the left, the gyro must command the servo to PULL the TR pushrod toward the front of the heli.

Dave

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10-18-2005 06:43 AM  12 years agoPost 10
cassat

rrVeteran

Alberta,Canada

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Mixing

Dave

Thank you for taking the time to explain the mixing to me. You are right in that I still have the mechanical mixing. I am still checking some fine adjustments. I did run up the heli on the weekend tuning the engine. I have some blade tracking to do also next.

Dave


Are You Dave Too

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