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HomeAircraftHelicopterFlybarless Rotor Head SystemsV-Bar › Var Quick Questions
04-05-2010 05:48 PM  8 years agoPost 1
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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I need some help setting up vbar on a nitro

Specs
Outrage V 50
8717 cyclic
BLS 251 tail
Rossi .57 Engine

1.im breaking in the engine and i noticed the vbar wobbles back and forth when i do quick cyclic adjustments like turn quickly it will jiggle back and forth is this because the gains too high?

2.is there any way to get piro rate above 130 deg per second? i want like 440 per second or so

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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04-05-2010 05:53 PM  8 years agoPost 2
g_dmitry

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Edmonton, AB, Canada

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Check that:

http://www.vstabi.info/en/node/75

and that:

http://www.vstabi.info/de/node/76
2.is there any way to get piro rate above 130 deg per second? i want like 440 per second or so
You can enter value manually up to 200 (if I remember right).

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04-05-2010 05:58 PM  8 years agoPost 3
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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well 440 per second is the rate i do piroflips on the sim does anyone know if theres a way to get it that high as thats what im used to also your saying my geometry is off and thats why its messed up?

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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04-05-2010 06:07 PM  8 years agoPost 4
g_dmitry

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Edmonton, AB, Canada

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Check that video on 2.36. Is that speed is not fast enough for your piroflip?

http://www.youtube.com/watch?v=_sIw...feature=related

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04-05-2010 06:09 PM  8 years agoPost 5
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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if its under 440 yes too slow i cant veiw video im at work maybe i need to slow my piros down but i am used to 440 on the sim i can do full chaos at 440 but slower messes me up because my fingers are used to 440

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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04-05-2010 06:14 PM  8 years agoPost 6
g_dmitry

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Edmonton, AB, Canada

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100 Trail Rate = 360deg/sec
So 440deg/sec = 122 Tail Rate

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04-05-2010 06:15 PM  8 years agoPost 7
MrMel

rrProfessor

Gotland

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Set EXPO in the VBar to Linear, use expo in the radio.
Then set 200 in the Yaw rate and make sure you have as much throw as possible.

(rate at xxx is relative to amount throw)

For cyclic wobble, what tape are you using? what main rotor gain?

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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04-05-2010 06:15 PM  8 years agoPost 8
g_dmitry

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Edmonton, AB, Canada

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200 Tail Rate = 720 deg/sec

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04-05-2010 06:17 PM  8 years agoPost 9
MrMel

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Gotland

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200 Tail Rate = 720 deg/sec
I think that depends on what heli, I can get insane amount of piro speed at 120 on my Aurora since it has so much throw, i.e. its relative to amount of throw.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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04-05-2010 06:19 PM  8 years agoPost 10
g_dmitry

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Edmonton, AB, Canada

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That's what manual says. But it says "approximately". So I guess you right (actually I am pretty sure, knowing your exp with Vbar ) that these values could be different for different helis.

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04-05-2010 06:57 PM  8 years agoPost 11
VooDooX

rrElite Veteran

San Francisco Bay Area CA, US (San Mateo)

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For cyclic wobble, what tape are you using? what main rotor gain?
Spartan gyro mounting kit with metal plate and the gain is at like 80 ish?

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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04-05-2010 07:10 PM  8 years agoPost 12
MrMel

rrProfessor

Gotland

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Main rotor gain 80 would be "off the chart high"..

50ish would be more proper.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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04-05-2010 07:18 PM  8 years agoPost 13
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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ok haha it was still in the green area and it goes to liek 120ish right? so 50 is normal for nitro 50 size?

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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04-06-2010 05:41 AM  8 years agoPost 14
MrMel

rrProfessor

Gotland

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Hmm, what version do you run?

No, main rotor Gyrogain max is 70 on v4.0

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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04-06-2010 03:31 PM  8 years agoPost 15
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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ok ok your right i was estimating based on what i thought the menus went to but i gues each menu has a different max value i thought all the values maxed out at 120 anyways im at about 45 but theres a slight wobble when i change directions or stop is that related to gain or something else? also im running 1600 HS on 630mm blades so that may have something to do with it also since i am still breaking in the engine

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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04-06-2010 05:03 PM  8 years agoPost 16
g_dmitry

rrApprentice

Edmonton, AB, Canada

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I have posted two links (2nd post). Check them. Make sure that swash gain is right.

You maybe want turn on Cyclic optimization for few flights. This could fix your problems.

If you are breaking in engine now, it could vibrate too much and affect performance of Vbar.

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