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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › NES-2700G Tail servo for CSM 560 micro ???
11-04-2004 03:53 PM  13 years agoPost 1
funky3d

rrApprentice

Fareham, Hampshire, UK

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I have the new micro CSM 560 gyro.

Was thinking of buying a 9254 or 8700g tail servo for it - however I have a brand new unused 2700g (old JR tail servo). Any thoughts if the 2700 might be good enough ??? Any one know specs on the 2700G ???

Regards,
Kev

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11-04-2004 06:11 PM  13 years agoPost 2
GBNT

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uk

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Hi Kev
I found some specs for the 2700G
Speed : 0.11 Coreless Super Servo

Found them here

Jez

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11-04-2004 06:23 PM  13 years agoPost 3
craneyum

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warwickshire uk

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As far as I am aware this was the designated servo for the CSM 540.
I had this combo and it worked great, so I shouldn't think youd have any problems.
Nigel

Learn By Other Peoples Mistakes It Costs Less

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11-04-2004 06:47 PM  13 years agoPost 4
RussD

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UK

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Hi Funkey 3D

JR 2700 G works great in a 560.

It is a touch more gain tolerant than the 8700G so be sure to use a 20-mm servo arm.

Russ D (CSM)

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11-07-2004 09:00 AM  13 years agoPost 5
funky3d

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Fareham, Hampshire, UK

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Many Thanks to everyone, especially Russ.

It is a great feature that the 560 likes so many servo's ;-)

2700g will be my first choice, with 20mm horn.

Russ, do you have any thoughts on adjustments that I might try once the basics of the gyro are setup correctly ??? It's in an Evo, Hyper 50, MP2Q, with Freya tail blades.

Also - I now have access to a 9254 so will try that for comparison - what horn length do you suggest I start with ???

Regards,
Kev

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11-07-2004 10:32 AM  13 years agoPost 6
RussD

rrVeteran

UK

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Hi Kev,

The 9254 appears less damped than the JR servos, so aim for a 17-18-mm arm as a start point.


Try the below interface setttings:

General Gyro Set-up Data
Stick slew limiter: 85 (This will slow down the initial response to a sudden tail rotor demand and relieve the stress on the mechanics.
Stick filter: 200 (This will sharpen up lost response on small to meduim inputs caused by the drop in the Stick slew limiter value)

Flight Mode-1 (Heading-Lock)
Linear stick sensitivity: 110 (simply sharpens up stick response to small to medium inputs, but be aware that the overall Piroutte rate will increase. So expect to drop your left/right rudder ATV (EPA) etc by about 10% for each direction)
Exponential Stick Sensitivity: 90

Acceleration Gain: 160 (slight rasing of value will allow a slightly higher retention of TX gain in backward flight)
Conventional gain: 110
Heading lock gain: 125
Direct coupling: 10
Heading Lock range: 45 Deg
HL Decay Time: 0 sec (Reducing this value to zero improves handling too small stick inputs in sideways flight. But be aware that the servo will not slowy return to neutral. Thus before taking off, simply switch to normal hold and back to heading hold to neutralise the servo and then take off as normal)

Stop tracking controls
Left gain stop: 85 (Softens naturally sharp left stop)
Right Gain stop: 170 (sharpens up naturaly soft right hand stop)

Best of luck and please let me know how you get on!

Russ.

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11-07-2004 06:02 PM  13 years agoPost 7
funky3d

rrApprentice

Fareham, Hampshire, UK

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Thanks again Russ, you've given me lots to try ;-)

I will be playing with this over next few weeks and shall keep you informed.

Regards,
Kev

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