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HelicopterMain Discussion › The Real Way to Level Your Swashplate
06-05-2004 07:50 PM  13 years agoPost 1
JKos

rrProfessor

Redondo Beach, CA

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I bought MA's "Swash Plate Alignment Guide" but it is so far off I feel like asking for my money back. Then I thought of the above and it worked out great!

There is a limitation, however, and that is this setup only allows me to level the swash at the middle (0 deg) and down. I then used bubble levels to level it at the top to make it match the readings at the middle.

- John

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06-05-2004 08:14 PM  13 years agoPost 2
orlee008

rrVeteran

Miami, FL USA

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is that really nessesary? I mean, do you need to be THAT exact (anal)?

Flying in Miami, FL (Kendall Area)

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06-05-2004 08:29 PM  13 years agoPost 3
z11355

rrMaster

New England

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ya know, that's not really accurate enough.

you might want to consider using a test indicator
or a granite surface plate and laser interferometer
on an air table

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06-05-2004 08:33 PM  13 years agoPost 4
Jared J

rrApprentice

Harrisonburg, VA

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I think the MA level is pretty close.

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06-05-2004 08:45 PM  13 years agoPost 5
nivlek

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Norfolk England

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One click of trim, and it's going to be wrong again anyway.

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06-05-2004 08:49 PM  13 years agoPost 6
capebob

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Cape Coral, FL

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a·nal-re·ten·tive adj. Psychology. Indicating personality traits, such as meticulousness, avarice, and obstinacy, originating in habits, attitudes, or values associated with infantile pleasure in retention of feces.

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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06-05-2004 08:51 PM  13 years agoPost 7
TMoore

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Cookeville, TN

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If the helis CG is forward of the main shaft or aft, will it really matter?

Terry

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06-05-2004 09:16 PM  13 years agoPost 8
JKos

rrProfessor

Redondo Beach, CA

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Guys,
Yes, I know it will no longer be parallel to main shaft as soon as trim is used. But, this type of exercise in some manner must be done to insure the swash remains "level" at the bottom, middle, and top of its travel when using eCCPM.

I only did it this way because it was actually really easy to do. I already had the dial indicator and mounting equipment for checking fan and clutch run-out so it's not like I bought it just to do this. Just thought I would throw out an idea of another use for such equipment. The mounting rods of my magnetic base just happen to be 10 mm.

Anal would be spending more than $6.99 on a dial indicator and checking for level at many points along the swash travel and using one or more mixes to make it just right at every point. That I'm NOT doing.

> I think the MA level is pretty close.

Maybe I got a dud. The outer bottom edge wobbles more than a 1/16" as you turn it. It does fit nicely on the main shaft, but the bottom just isn't perpendicular to the hole.

- John

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06-05-2004 09:20 PM  13 years agoPost 9
Dahflyboy1

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Orlando, FL

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Actually a dam good idea if I may say so. Will do the same thing next week. Why say he's anal? Just has great attention to detail!!

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06-05-2004 09:22 PM  13 years agoPost 10
flmgrip

rrKey Veteran

irvine, CA, United States

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Anal would be checking for level at many points along the swash travel and using one or more mixes to make it just right at every point. That I'm NOT doing.
but THAT would make sense and is fast and easy with the MA tool...

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06-05-2004 09:28 PM  13 years agoPost 11
JKos

rrProfessor

Redondo Beach, CA

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>> checking for level at many points along the swash travel
> but THAT would make sense

You are correct. I guess I should clarify... I checked about five points along the travel but didn't need to do any further adjustments (mixes) after setting the bottom, middle, and top points which were really close to begin with.

> and is fast and easy with the MA tool...

I actually found it quite easy to do what I did. There is nothing complicated or time intensive about it.

- John

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06-05-2004 11:32 PM  13 years agoPost 12
HeliWhacker

rrApprentice

Childersburg, AL.

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JKos

Did you find any of the imaginary eCCPM "interaction"?

.

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06-06-2004 12:11 AM  13 years agoPost 13
RotorX

rrKey Veteran

London

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but it is so far off I feel like asking for my money back.
I think the MA level is pretty close.
Are you trying to confuse me - which is it dude

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06-06-2004 01:27 AM  13 years agoPost 14
JKos

rrProfessor

Redondo Beach, CA

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HeliWhacker,
Nope, no problems with this setup. The only interaction I've ever had on 120 deg eCCPM setups is with VERY fast elevator movements. And that will happen without some type of radio software interaction to slow down the front two servos. With elevator movements the side servos don't have to move as far as the front/back servo.

The slower the servos, the more this is noticeable. But, with fast servos, if you're moving the elevator fast enough and far enough to make it happen in flight, you're probably doing something wrong.


RotorX,
I'm certainly not trying to confuse you... I said, "but it is so far off I feel like asking for my money back." It was Jared J who said, "I think the MA level is pretty close."

- John

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06-06-2004 02:14 AM  13 years agoPost 15
RotorX

rrKey Veteran

London

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I know who said what - just that the two opinions were poles apart

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06-06-2004 02:45 AM  13 years agoPost 16
vortechZ230

rrElite Veteran

U.S.A.

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Doing it that way, just might save your "Anal" someday!!

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06-06-2004 10:50 AM  13 years agoPost 17
mcatech

rrVeteran

Mount Gambier SA Australia

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I just use the old eyecrometer lately the calabration seems to be off
better go see an optometrist

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06-06-2004 05:20 PM  13 years agoPost 18
helinut

rrApprentice

Snohomish, WA

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The MA unit works great, using an indicator is just another way of getting there. A few thousands is not going to make much difference. But if you already have the indicator setup why spend the money on the MA unit.

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HelicopterMain Discussion › The Real Way to Level Your Swashplate
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