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Old 02-21-2010, 11:22 PM   #1
Brushless2401
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Default What are the advantages of an "S" pitch curve?

Maybe some one could explain the "S" pitch curve setup to me and the advantages or disadvantages of this setup. I had seen mention of this setup in another thread some where and was woundering about this setup and if I should give it a try.

Thanks in advance you guys and girls always have a great insite into this hobby!
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Old 02-21-2010, 11:30 PM   #2
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It makes the collective more sensitive around midstick.
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Old 02-22-2010, 12:16 AM   #3
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Or less sensitive around mid stick if you do it backwards S style
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Old 02-22-2010, 03:43 AM   #4
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Quote:
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It makes the collective more sensitive around midstick.
Wow, why did I never thought of that! And I hate banging the throttle axis!

I don't 3D yet, but I'm not comfy at the rudder when the throttle is almost up just to keep the heli flying. And my hands aren't big so I feel better with more sensitive controls so I don't have to bang the sticks.
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Old 02-22-2010, 05:32 AM   #5
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Wow, why did I never thought of that! And I hate banging the throttle axis!

I don't 3D yet, but I'm not comfy at the rudder when the throttle is almost up just to keep the heli flying. And my hands aren't big so I feel better with more sensitive controls so I don't have to bang the sticks.
A backwards S is like a DIY expo on collective, but with only 5 points. I'm hoping 7 points becomes the norm soon but it appears not.
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Old 02-22-2010, 09:44 AM   #6
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a simple curve of 0-20-50-80-100 will give a noticable, but not drastic change. Rolls will become easier, as will some other maneuvers
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Old 02-22-2010, 10:18 AM   #7
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It gives your collective a little more 'pop' when you start getting into collective moves (aka- tic/tocs, dust-offs, etc...). It loads up the disc quicker, so you just give it a short jab, then back off the collective and it gives you that snappy response you see the pros doing. You can do it without the S-curves, but you have to move your sticks a whole lot more and tends to make the move a little less precise/sloppier.
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Old 02-22-2010, 10:37 AM   #8
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I HAVE NO CLUE ON WHAT YOU GUYS MEAN SO ON A 5 POINT PITCH CURVE WHAT WOULD IT LOOK LIKE AT 0-25-50 AN SO ON
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Old 02-22-2010, 10:42 AM   #9
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Quote:
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It gives your collective a little more 'pop' when you start getting into collective moves (aka- tic/tocs, dust-offs, etc...). It loads up the disc quicker, so you just give it a short jab, then back off the collective and it gives you that snappy response you see the pros doing. You can do it without the S-curves, but you have to move your sticks a whole lot more and tends to make the move a little less precise/sloppier.

Not necessarily. The "Pros" tend to use +-15 collective and pump the collective to get quick stops and starts.

An S curve is neither good nor bad, it is simply a way to change the collective feel of the heli. I personally do not like it as it makes piro flips alittle less smooth.
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Old 02-22-2010, 10:43 AM   #10
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Quote:
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a simple curve of 0-20-50-80-100 will give a noticable, but not drastic change. ---
see above
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Old 02-22-2010, 11:36 AM   #11
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I like using S curves on collective pitch .(0,17,50,83,100)

With a straight line an upright hover will be at around 3/4 stick inverted hover will be around 1/4 stick .

With the S curve Im using upright hover is somwhere in between mid and 3/4 stick and inverted hover is a bit more than 1/4 stick .

Hovering obviously still requires the same number.of degrees pitch you can just get there with less movement of the stick around center .
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Old 02-22-2010, 11:48 AM   #12
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It sounds like another method of expo to me. Is that correct?
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Old 02-22-2010, 12:02 PM   #13
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It is expo for collective.
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Old 02-22-2010, 12:25 PM   #14
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Thanks
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Old 02-22-2010, 01:18 PM   #15
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Quote:
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Not necessarily. The "Pros" tend to use +-15 collective and pump the collective to get quick stops and starts.
That's where I heard it from first, so I suppose it could go either way. I know a few that use both. It's just a tool to get a different feel out of the sticks (kinda like EXPO or D/R). To each his own though
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Old 10-09-2011, 04:38 AM   #16
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hi guys can anyone tell me about a S pitch curve and its value for each curve? thnx
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