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[Boughtonfields]

Hello All,
I'm currently building (early stages) a Yorkshireman tug, and am trying to setup all the electrics.

I have Optic 6 radio gear and an Action Electronics P94 ESC/Mixer to control the two main motors
My problem:
With the left stick (throttle) in the neutral centre position both motors are stopped.
Just one 'click' forward (or reverse) on the stick equals about half speed on the motors.
Further movement from there gives a nice gradual increase in speed.

There is no setting for the speed curve on the ESC so there must be some setting on the radio gear that is causing this 'jump' from zero to half speed.
I am after a nice gradual increase in speed from zero to full speed.

Does anyone have any experience with the Optic 6 and boats?

Thanks in advance for your help

[daveorgan]

mate i had an optic 6 im sure i got the manual up stairs ill search for it later if i got it ill let you know and pop it in the post if its any good to you

regards

dave

[knoby]

Optic 6 does have exponential settings available in its menu. This will allow you to adjust the speed curve for the esc's.
The manual is available to download here:
http://www.modelflight.com.au/manuals/pdf/hitec/hitec_Optic_Manual.pdf

glenn

[Boughtonfields]

Thanks for getting back to me guys.

I have the manual as I bought the radio new recently.
I'll have a look at the exponential settings and see if they'll help.

It just seemed a bit strange to go from zero to half speed with one 'click'!

[expat flyer]

I cannot believe that any radio has a jump from neutral to part throttle - rather the opposite, a dead band around neutral is useful to prevent reversing the voltage to a motor until it has stopped.

I believe some new radios such as the Futaba FHSS (6J) are not compatible with the P94 logic because of low latency  - channels are not separated in time but transmit almost simultaneously. Perhaps there is something similar with the Hitec.

The only other thing I can think of is that you are not waiting for the P94 to initiallise and find the neutral position of the sticks - that takes around 10 sec during which time the sticks must not be moved.

Try contacting Dave Millburn at Action - he is very helpful and knowledgable from what I have read.