RE: idle up & normal mode etc...  
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All Forums >> RC Helicopters >> RC Helicopter General Discussions >> RE: idle up & normal mode etc...
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RE: idle up & normal mode etc... - 7/9/2008 6:50:27 PM   
redvtr1000


 

Posts: 734
Joined: 6/29/2007
From: covington, GA, USA
Status: offline
quote:

They are a guide but you really need to use a pitch gauge to set your curves.


Please explain.

I have never used a pitch gauge while setting my pitch curves and I always end up with a neutral setup with equal pitch on either side of 0 pitch (which occurs for me at mid stick). The only thing you really need the gauge for is establishing 0 pitch at midstick (or some other point if you choose) and then to verify max positive/negative pitch. Good for checking your cyclic pitch as well but again, you can do that without the gauge and end up close to max pitch by backing the servos off from binding.

as far as adjusting pitch curves goes, starting purely linear and having all three modes use the same mid point are what I aim for. All the rest of the adjustments I make I do by feel seen as I already set pitch using the travel adjust to keep binding out of the equation. If you want less negative pitch or positive try using 20 or 80 as your first and last points on the curve and see how it feels.

Point is, you are going to have to test fly any change you make to the pitch curve to see how it affected the heli and if the results are what you were after anyhow. A pitch gauge is imperative to a proper setup but I find it more useful in the initial setup/rebuild phases for verifying the numbers as opposed to throwing it on the heli to actually adjust pitch curves for feel in flight.

(in reply to Skarn)
       Post #: 26

RE: idle up & normal mode etc... - 7/9/2008 7:36:28 PM   
Skarn


 

Posts: 702
Joined: 1/1/2007
From: Pasadena, MD, USA
Status: offline
quote:

ORIGINAL: redvtr1000

quote:

They are a guide but you really need to use a pitch gauge to set your curves.


Please explain.

I have never used a pitch gauge while setting my pitch curves and I always end up with a neutral setup with equal pitch on either side of 0 pitch


If you are running only linear pitch curves...which it appears you are, then you are correct, you only need the gauge to get zero at center. But most newbies like to run a normal mode pitch curve with only about -2 neg pitch. In order to get that -2, you have to use a pitch gauge since as I stated, every heli is different. The Finless vids talk about this as well. A good place to start to get close to -2 at low stick is 40.

Skarn

(in reply to redvtr1000)
       Post #: 27

RE: idle up & normal mode etc... - 7/10/2008 12:33:31 AM   
legine


 

Posts: 205
Joined: 5/28/2007
From: SydneyNSW, AUSTRALIA
Status: offline
quote:

ORIGINAL: Skarn

Most use either the flat or v curve throttle curves in idle 1 or 2. It gives you a constant headspeed and the only thing that changes is pitch. Yes, the headspeed will vary slightly as pitch changes, but not too much. And with a straight flat curve of 100, you won't be able to do any better for headspeed!



If this is the best type of curve available 100-100-100 then why dont i just enter that into my transmitter??? seeing as any change in head speed is minimal???

I did use a pitch gauge, what i meant by manufacture's settings is what they said in the manual, in normal mode: -2 at bottom, 0 at mid and +7 at full....in stunt mode: -7 at bottom, 0 at mid and +7 at full. I used my pith gauge to set all of these points......so the only thing left i have to do before i can fly it is set the throttle curve.

ill check out those vids now, thanks.


(in reply to Skarn)
       Post #: 28

RE: idle up & normal mode etc... - 7/10/2008 3:00:36 PM   
Skarn


 

Posts: 702
Joined: 1/1/2007
From: Pasadena, MD, USA
Status: offline
quote:

ORIGINAL: legine

If this is the best type of curve available 100-100-100 then why dont i just enter that into my transmitter??? seeing as any change in head speed is minimal???

I did use a pitch gauge, what i meant by manufacture's settings is what they said in the manual, in normal mode: -2 at bottom, 0 at mid and +7 at full....in stunt mode: -7 at bottom, 0 at mid and +7 at full. I used my pith gauge to set all of these points......so the only thing left i have to do before i can fly it is set the throttle curve.

ill check out those vids now, thanks.



You can and should absolutely enter that into your radio for idle 1 if that's the curve you want. It's preference too....like I said, I run a V curve of (100, 95, 90, 95, 100) but am thinking about just running straight 100 since my curve is so close anyway and why not get that extra bit of power.

Ok, I see what you are saying now.....you did great in setting your pitch curves. A lot of new folk simply want to plug in numbers that someone else is using, but that doesn't work as I'm sure you now know.

Good luck bro!
Skarn

(in reply to legine)
       Post #: 29

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