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Helicopter
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Other › adjusting elevator and aeileron pitch
11-20-2006 06:27 AM  11 years agoPost 1
soulrider911

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Novato Ca

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I need to adjust the travel on my elevator and aeleron travel...I have way too much...like +-10degr. needs to be like 6-7 degr. Adjusting this on a mechanical mixing heli is easy, because you can just adjust the endpoints on each servo...but on a ccpm I dont exactly know how to do it because you have all 3 servos to deal with...any help would be great..

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11-20-2006 06:33 AM  11 years agoPost 2
caseyjholmes

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Portland, Oregon

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Decrease the "rates" (AKA D/R).
you mean cyclic throws? (how much the swash tilts)

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11-20-2006 06:35 AM  11 years agoPost 3
bexusflexus

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Tulsa, OK

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Go into your swash menu on your radio and adjust for ail and ele. This will adjust in CCPM and will keep all servos moving properly together. If you move endpoints it will throw your CCPM off as you noted. Don't know which radio you have so can't be more specific.

Edit: Sorry Casey, I think we posted at the same time. I think he means swash, but if cyclic then yes use Dual Rates.

even not doing anything would have been better than nothing...

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11-20-2006 06:37 AM  11 years agoPost 4
caseyjholmes

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Portland, Oregon

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Don't use endpoints or swash AFR. Both will require pitch adjustments. IF I understand the question correctly..

edit:
No prob, I think we need a tiny bit more info..
If it is entire swashplate travel he wants to reduce, then swash AFR rates would be the thing to reduce. You are right there for sure. (but then he may also need to increase the rates to compensate for reduced cyclic throw )
Don't you love ECCPM?!

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11-20-2006 06:59 AM  11 years agoPost 5
soulrider911

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Novato Ca

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thanks guys, here is some more info I have Futaba 7ch radio, and I need to bring down the travel on both elevator and aeileron so...yes less tilt in the swash...

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11-20-2006 07:16 AM  11 years agoPost 6
bexusflexus

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Tulsa, OK

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Ahh, I got ya. Yes, decrease your dual rates (D/R), as Casey alluded to earlier, on both ail & ele. That should get you fixed up.

even not doing anything would have been better than nothing...

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11-20-2006 04:51 PM  11 years agoPost 7
jack726

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Cerritos California

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It drives me crazy when someone asks a simple question and gets the wrong answer presented to them as if it was correct. If you don;t know the answer, why answer. Give the new guy a break. Only one of the answers here is correct, but it looks like the wrong answer will be followed.

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11-20-2006 04:55 PM  11 years agoPost 8
caseyjholmes

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Portland, Oregon

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How so? I'm wondering what answer YOU think is correct, and why you are anal about somone trying to help, even if it was the wrong answer (because we did not fully understand the question)

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11-20-2006 04:56 PM  11 years agoPost 9
slider46

rrProfessor

Ocala Florida

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My question would be, Why reduce the pitch +-10* is fine on a trex if you want to slow down the response while hovering use expo so the heli is calmer while hovering....

Tom..... No "D" flying....

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11-20-2006 05:11 PM  11 years agoPost 10
caseyjholmes

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Portland, Oregon

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I think he means +-10* of cyclic swashplate tilt... not pitch.. That part is still unclear to me.

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11-20-2006 05:51 PM  11 years agoPost 11
soulrider911

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Novato Ca

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CasejHolmes...Yes you are right...let me explain more in detail...this entire post should be revolving around cylclic pitch range..I am not having issues with COLLECTIVE pitch..I just want to make that distinction. I want less travel I.E. a lower +&- pitch range on my aeileron & elev. Here is why...anything over +-6 or 7 degr will slow down your roll and flip rate as that is too much pitch ad will load the blades and bog the engine more. All my raptors have been set up this way and they rock...too much ael. elev. they are pigs.Hopefully that helps...thanks again

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11-20-2006 06:21 PM  11 years agoPost 12
slider46

rrProfessor

Ocala Florida

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Go into the swash menu and lower the % number you have set for elevator and aileron... That should drop your cyclic pitch... You will have to check your full pitch range to make sure there is no changes to that in the swash menu.....

Tom..... No "D" flying....

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11-20-2006 06:23 PM  11 years agoPost 13
caseyjholmes

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Portland, Oregon

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The point is, he can fix it without changing his collective pitch and having to check or even touch pitch settings using D/R

What he is shooting for is a decreased roll/flip rate (adjusted by the amount the swash tilts using rates without changing AFR endpoints)

The more the swash tilts, the more it will bind/load up the heli. This is for sure. Decreasing the Roll rate also decreases cyclic swashplate tilt, making the rotor head hold headspeed better.

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11-20-2006 06:26 PM  11 years agoPost 14
slider46

rrProfessor

Ocala Florida

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Your right Casey D/R would be easier to set up....

Tom..... No "D" flying....

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11-20-2006 06:28 PM  11 years agoPost 15
caseyjholmes

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Portland, Oregon

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FYI:
Cyclic pitch can be measured with a pitch guage on the flybar paddle

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11-20-2006 07:03 PM  11 years agoPost 16
soulrider911

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Novato Ca

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Casey, thanks for the help, just a note, you should not measure the cylcic pitch on the PADDLES...you actually do it on the main blades, that is what is important, disreguard the paddle range....what you do is turn the blades so the paddles(flybar) is parallel with the boom(blades perpendicular) and hold the flybar with one hand...now move your elevator stick, the mai blades will move... and measure the pitch on the main blades...I thought originally it was the paddles also, but its not its the main blades you measure...thenks again

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11-20-2006 07:08 PM  11 years agoPost 17
caseyjholmes

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Portland, Oregon

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I suppose you are right there.
I never measure really, I just run the maximum swash throw allowed before bindage occurs with the swash on the shaft colar. I give around 1mm - 1.5mm clearance minimum at full ele AND aileron throw (most swashplate can tilt) and full neg pitch.

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11-20-2006 07:19 PM  11 years agoPost 18
jack726

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Cerritos California

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CaseyJholmes seems to understand what is required.

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11-20-2006 08:18 PM  11 years agoPost 19
soulrider911

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Novato Ca

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Cool I see Casy..thanks again for the help...by the way who is this Jack guy chimming in from time to time with nothing constructive to say???

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11-20-2006 09:03 PM  11 years agoPost 20
bexusflexus

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Tulsa, OK

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Jack's here to keep us all honest

even not doing anything would have been better than nothing...

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Helicopter
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Other › adjusting elevator and aeileron pitch
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