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Home✈️Aircraft🚁HelicopterThunder TigerRAPTOR 30 › EXPO, YES or NO?
08-22-2008 11:47 AM  12 years ago
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tryan02

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Canton, Missouri

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EXPO, YES or NO?
I myself dont use Expo but I have only flown electrics little Blade cp pro Honeybee king2 (300 size micro's) and a 450TREXSE all very very responsive most call them twitchy the King2 is turning around 2800rpm. I am very proficient at hovering and FF figure 8's and what not. I am getting my raptor 30 in the next few days and see that some suggest expo. Is this just for someone new to the hobby to get used to the heli cause they overcorrect for the first month like I did. Or is there some other purpose behind it? Oh also I hate to admit it but Im all thumbs no pinching I got club like hands.

let me have your opinions and reasons why you do or do not use expo.

Thanks
No Really I am the club President!!!
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08-22-2008 11:59 AM  12 years ago
steve 01

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Grand Rapids MI

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Using a little expo helps calm the center of thre stick to prevent unwanted inputs 10-15 is what I run and I have been flying for quite some time, its a suttle change in stick feel, it will make the helis your flying feel more stable.
By the way your new 30 is going to feel lazy compared to the birds you have been flying, much more stable than the small electrics.
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08-22-2008 12:02 PM  12 years ago
Drunk Monk

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Preston, UK

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Personal preference really, I usually use 10% or so, depends how good your servo's are. The higher spec servo's are alot more twitchy and respond to the slightest input.
Stephen

I only open my mouth to change feet.....
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08-22-2008 12:30 PM  12 years ago
BarracudaHockey

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Jacksonville FL

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Actually if you can fly those little electrics ok, you will find the raptor a magnatude more stable.

Expo is all about personal feel though, there is no "right" way, if you want to try it start around 22 to 25 percent, that is acutally what it takes so the center isn't more sensitive due to the non linear output of a round servo wheel.
Andy
AMA 77227
http://www.jaxrc.com
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08-22-2008 01:27 PM  12 years ago
Skarn

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Pasadena, MD

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Like Barracuda said, if you've been flying those micro's without expo, I don't think you'll want any for the Raptor. At least that was my experience....I too learned on the micro like the Blade CP, King II and now my TREX 450 without any expo. WHen I started on my Raptor 50, I didn't use any and like it that way. I actually tried some expo once on the electric and felt I lost control capability.

One thing I started doing recently however now that I'm flying inverted is to add 20% expo to rudder....this way when go negative pitch when inverterted, the tail doesn't move as much....I have a tendency to accidentally give slight rudder input when giving negative...

Skarn
It's better to burn out than to fade away...
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08-22-2008 05:44 PM  12 years ago
TwistedRotor

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Yup

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Like Barracuda said, if you've been flying those micro's without expo, I don't think you'll want any for the Raptor.
Same here, went from trex 450 to R30 and added no expo.
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08-23-2008 01:02 AM  12 years ago
tarzan_eb

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Central Illinois USA

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Expo
I like some Expo I think it it makes everything smoother.Set the heli on the bench and move your sticks watch your heli to see if your creeping your stick, if you move throttle and the rudder moves a little also, put in some expo same for elevator/aileron
Fly it ! Crash it ! Rebuild it ! Repeat as needed !! Everett
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08-23-2008 01:19 AM  12 years ago
tryan02

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Canton, Missouri

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that makes sense tarzan_eb could help mask little servo interactions. Thanks for that tip. I didnt think I needed expo after flying the rex at +/-12 degrees with no expo. But I will check and be aware of the servo interaction between both sticks.

Thanks
to all
No Really I am the club President!!!
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08-23-2008 03:56 AM  12 years ago
tarzan_eb

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Central Illinois USA

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expo
I'm not sure but I think futaba uses negitive numbers for positive expo Unlike JR which uses positive numbers for pos expo
Fly it ! Crash it ! Rebuild it ! Repeat as needed !! Everett
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08-23-2008 12:57 PM  12 years ago
tryan02

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Canton, Missouri

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yes futaba is negative that much I know.No Really I am the club President!!!
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08-23-2008 02:45 PM  12 years ago
T-Rex-Flyer

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Panama City, Fl

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Yes, Futaba users negative numbers to denote lower sensitivity around center stick. (JR got it backward ) Just kidding don't kill me.If the wings are traveling faster than the fuselage, it's probably a helicopter.
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08-23-2008 06:47 PM  12 years ago
twitch

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Las Vegas

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This isnt a yes or no situation. Its all up to what you like. Mess around with some expo for a few flights and see what you like. I personally dont like any expo, just slows things down for me and doesnt feel precise.

Also do you use pinch or thumbs.
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08-23-2008 07:01 PM  12 years ago
T-Rex-Flyer

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Panama City, Fl

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I'm not sure but I think futaba uses negitive numbers for positive expo Unlike JR which uses positive numbers for pos expo
Sorry for my confusion, the above sounds a little like a question.
If the wings are traveling faster than the fuselage, it's probably a helicopter.
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08-23-2008 11:08 PM  12 years ago
TachyonDriver

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Chipping, Lancs, UK

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tryan,

NOT using any expo worked for me. I went from an EF Sabre FP heli to my Raptor 30. I had already removed the flybar weights from the Sabre. As 'cuda says the Rappy is a magnitude more stable than the little electrics.

Tach.
Little Spinning Bundle of Joy® DON'T DISS THE DINO!!
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08-23-2008 11:19 PM  12 years ago
tryan02

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Canton, Missouri

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I do know my futaba radio expo works in what I believe to be a normal mode. If I want to have less control more exponential I go negative If I want it more exponential more control go positive almost like dual or half rates but only at the midstick for both positive and negative not for the whole servo throw like half or dualrates do.

Thanks for all the advice guys.

I ass-u-me'd I didnt want any expo especially in a heli twice the size of the one I have been flying without it. But Being new to nitro and going to Mccpm from eccpm and direct to swash links I wasnt sure if I was missing something
No Really I am the club President!!!
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08-25-2008 03:32 AM  12 years ago
ROGER543

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bristol ct usa

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just came back from the field and the guyes spent hours setting up my machine and they ended up by giving me expo and started about 30% but for me that was to much right now I am at 15% and still playing around with it. It does make it smother when you fly. I always said i would never want it but now i've expermented with it i am glad i did. I don't think i'ts a bad thing just make it smother.
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08-25-2008 04:29 AM  12 years ago
David Blain

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Mt. Dora, Florida (USA)

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Tryan02-
Never ass-u-me anything with any R/C Helo....

Expo is often looked down upon by a lot of R/C pilots!

Bottom line: Your Radio has the ability to ease you into a new helo!

I have read all the replies on this question and I will stand behind my personal belief in a transition of models:
"If you have never flown that size,type,power,blade size helicopter
then put a little expo in it and then back it out as you learn the bird!"

What could be the worst? Sloppy movement with 20%, Beats crashing!

I can't imagine someone throwing down some hard 3D before they learn how the helicopter feels and flies on that engine/servo/blade combo!

Okay, You didn't use Expo in your 450, I think that's great and the video you enclosed in Raptor section demonstrates you CAN fly the 450 but take care of the new helo you have invested time and money into, put some expo in, THEN back it off as your confidence builds in the helicopter!

Your Visa Card balance will be alot less in the first month of flying!

ROGER543 is in the right direction, He is already backing down expo!

Like I said, MY OPINION ONLY!
So when will you be airborne??

Pull-n-Pitch
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