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HelicopterScale Model RC Helicopters › Pitch curve for scale flying
06-01-2013 01:38 AM  4 years agoPost 1
solo

rrApprentice

San Antonio Tx, USA

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Raptor 50 MD 500

Quick question...my pitch curve for my Rappy MD500 is set up 10-0-10. Thats what it was in pod and boom. Now that its scale should I leave it or change the curve to something like -4 +5 +9. What do you guys recomend. The heli is a little twitchy. Thanks.

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06-01-2013 02:18 AM  4 years agoPost 2
Chris Reibert

rrVeteran

Rochester, NY

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I fly mine around -3, around +5 hovering at mid stick, and +9.
I like it light on the skids and hovering before mid stick.
I rarely leave center sticks while flying and need very little cyclic response for a scale flight.

I only FLY on days that end in "Y"

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06-01-2013 03:25 AM  4 years agoPost 3
solo

rrApprentice

San Antonio Tx, USA

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OK, just what Im looking for a very smooth flying heli. Now did you set up the +5 mechanically or use the radio.

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06-01-2013 03:29 AM  4 years agoPost 4
Chris Reibert

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Rochester, NY

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Mechanically to get the +5 at mid stick and set the - and + range in the radio.
The +10 is just there in case I need it and -2 is just fine because the weight alone and lowering the throttle will allow the bird to come down. My big AS350 weighs 18lbs...

I only FLY on days that end in "Y"

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06-01-2013 05:35 AM  4 years agoPost 5
DCORSAIR

rrVeteran

Selma, Calif.

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Mine
-4 +5 +10, lift off at 1/2 stick as well. Throttle curves, now thats a different story.........

D. Lee.....t.Born again.t.....

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06-01-2013 11:37 AM  4 years agoPost 6
Chris Reibert

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Rochester, NY

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I fly a flat 0,80,80,80,80 throttle curve in mine. But it all depends your setup. My big scaler is around 1450rpm and smaller birds around 1600rpm. It will depend on your setup and what works. Also some expo is nice to add in to soften your sticks and make it less jumpy

I only FLY on days that end in "Y"

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06-01-2013 12:57 PM  4 years agoPost 7
epryor

rrApprentice

Grandview mo,

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Is that curve for electric?

Batman - Scale it up

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06-01-2013 03:09 PM  4 years agoPost 8
DCORSAIR

rrVeteran

Selma, Calif.

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Yes
That would be for electric, same as I run depending on ESC. Some of mine are 0,75,75,75,75, 0,80,80,80,80 and one is 0,90,90,90,90. My nitro is like 0, 35, 51, 71, 100 depends on motor and pipe and what headspeed you want..

D. Lee.....t.Born again.t.....

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06-02-2013 05:41 AM  4 years agoPost 9
spy29

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USA

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pitch curve is whateever works..helis have different weights and if using a 2 blade or multi. gear ratio and headspeed also affects it.. so whatever works.

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06-02-2013 06:28 AM  4 years agoPost 10
DCORSAIR

rrVeteran

Selma, Calif.

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spy29
Solo was looking for a ball park figure so we helped him out, don't think what ever works would help him much for the question he was asking...

D. Lee.....t.Born again.t.....

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06-02-2013 12:40 PM  4 years agoPost 11
airplanejunkie

rrApprentice

Riverview, Mi.

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My pitch settings.
Being an old fart with 40 + years flying these wonderful machines, I use the old FAI type setup which is just the thing for scale flying.
Min.stick -3-4' (min for an auto)
Mid stick 6' for hovering
High stick 9 to 10 or what ever your engine/motor will drive.

This will provide a great starting point that you can tune to your liking. Thanks, Dave George AMA5129 RW2500

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06-03-2013 05:28 AM  4 years agoPost 12
solo

rrApprentice

San Antonio Tx, USA

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Raptor 50 MD 500 Funkey Fuse
O.S. Hyper 50
Throttle Jockey Pro GOV
JR 8311 servos for cyclic
Futaba 520 Gyro

Took my rappy MD500 out today and it flew great! The settings are -4 +5 +10. With the -10 0 +10 settings the heli was very sensitive. With the -4 +5 +10 settings the heli had a docile feel and flew great for scale flying.

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06-04-2013 01:54 PM  4 years agoPost 13
DCORSAIR

rrVeteran

Selma, Calif.

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Glad for you solo
Now if you want even an easier way to fly scale, try keeping some negative pitch in between that -4 and +5 so it might look like this
-4,-2,+5,+7,+10 just don't overspeed on the decent on your landing approach but I see your using a govenor..: I don't use a gov so I have to really work on my throttle curves to get the rpm to match my pitch curves so it keeps a nice steady headspeed from 1/4 stick to 3/4 stick. I use the stock Raptor paddles too and that helps to keep is stable. Keep in mind my setting are for Futaba 7CH with a 5 point pitch and 5 point throttle curve.....

D. Lee.....t.Born again.t.....

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HelicopterScale Model RC Helicopters › Pitch curve for scale flying
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