Re: [RCSE] Futaba 9C (Secret untold)

[mpodder]

That's right John.  Without the use of the OFS function 45 deg of travel is 
all you can get.  For some reason Futaba expects you to want as much flap 
travel up as down.  It may have to do with power ship requirements I don't 
know.  But with the OFS function you can go as high as 80 deg actual servo 
arm travel.  Normally though that will bury the arm at one end or the other. 
You will probably have to make new linkage unless you have a lot of 
adjustment on you rods.

Maurice
----- Original Message ----- 
From: "John Erickson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Soaring List" <Soaring@airage.com>
Sent: Wednesday, May 04, 2005 10:32 AM
Subject: Re: [RCSE] Futaba 9C (Secret untold)

Maurice,
Thanks for your link.  I might try a step by step set up tonight.  The
v-tail problem was in any radio prior to 6/30/02.  I bought my radio after
that.  This is another problem.  I only get about 45� of flap travel on the
servo arm.
JE
--
Erickson Architects
John R. Erickson, AIA

From: <[EMAIL PROTECTED]>
Reply-To: <[EMAIL PROTECTED]>
Date: Wed, 4 May 2005 10:18:56 -0700
To: "John Erickson" <[EMAIL PROTECTED]>
Cc: <Soaring@airage.com>
Subject: Re: [RCSE] Futaba 9C (Secret untold)
Hi John
I believe the problem you are talking about is the V-tail glitch that was
fixed with a modified chip.  This caused one side of the ruddervator to 
have
no compensation is Butterfly.  I have never heard a problem with flaps in
Butterfly.

The untold secret is the OFS function that allows you to change the center
of the servo electronically giving you 90 deg. flap travel.  You can read
about this on my 9C set up page which was graciously published for me on 
the
Soaring index.
http://www.nonsilence.com/soaring/9c/

Maurice
----- Original Message -----
From: "John Erickson" <[EMAIL PROTECTED]>
To: "Soaring List" <Soaring@airage.com>
Sent: Wednesday, May 04, 2005 8:55 AM
Subject: [RCSE] Futaba 9C

I've had a 9C for two years now and I've always struggled to get full
flaps
in Butterfly.  I've had all kinds of workarounds involving offsets, 
longer
servo arms, travel volume, etc.

I finally called Futaba to ask about the situation and they told me to
send
the radio in; there is a software update that fixes the problem.  I was
surprised!  Anyone else hear of this?
JE
--
Erickson Architects
John R. Erickson, AIA
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