Has anyone built one of these and still has the manual? I have tried
the SIG site but there is no way to download the manual that I could
find. I just bought a finished 4 star that was sitting in a garage for
four years and need to know where the CG is and what the recommended
control throws are. Can anyone help?
Six_O'Clock_High - 09 Dec 2009 20:00 GMT
> Has anyone built one of these and still has the manual? I have tried
> the SIG site but there is no way to download the manual that I could
> find. I just bought a finished 4 star that was sitting in a garage for
> four years and need to know where the CG is and what the recommended
> control throws are. Can anyone help?
Give me until Monday to get mine out and scan it for you. I have one
somewhere in the attic.
notruthless - 10 Dec 2009 11:04 GMT
Check the Sigmfg.com website. They've been posting manuals online
available for download. I'm not sure the Four Star 120 is there, but
it is worth a shot. Good luck!
> Has anyone built one of these and still has the manual? I have tried
> the SIG site but there is no way to download the manual that I could
> find. I just bought a finished 4 star that was sitting in a garage for
> four years and need to know where the CG is and what the recommended
> control throws are. Can anyone help?
Tim Wescott - 10 Dec 2009 15:23 GMT
> Has anyone built one of these and still has the manual? I have tried the
> SIG site but there is no way to download the manual that I could find. I
> just bought a finished 4 star that was sitting in a garage for four
> years and need to know where the CG is and what the recommended control
> throws are. Can anyone help?
If you can't find the manual, and you can stand a bit of math, there's
this: http://www.zenithair.com/kit-data/ht-90-4.html.
It's written for full-scale aircraft, so it'll give you a CG range that
we'd consider "trainer" or "easy sport" -- but it can give you a nice
starting point from which to move the CG back, if you want more exciting
flight characteristics.
When I'm actually managing to get out and fly regularly, I try to get the
CG back far enough that I can snap roll when I want, but not so far that
the plane is constantly volunteering to snap roll for me. Other times, I
keep it safely forward.

Signature
www.wescottdesign.com
Wayne - 11 Dec 2009 05:58 GMT
> Has anyone built one of these and still has the manual? I have tried
> the SIG site but there is no way to download the manual that I could
> find. I just bought a finished 4 star that was sitting in a garage for
> four years and need to know where the CG is and what the recommended
> control throws are. Can anyone help?
Is this what you are looking for ?
http://www.sigmfg.com/cgi-bin/dpsmart.exe/BuildManuals/SIGRC65FourStar120SP.html
?L+Sig+yxqo0365
Wayne
MJKolodziej - 11 Dec 2009 16:01 GMT
>> Has anyone built one of these and still has the manual? I have tried
>> the SIG site but there is no way to download the manual that I could
[quoted text clipped - 7 lines]
>
> Wayne
CG main spar. Who would have thunk it?
mk
low rate
Elev. 1"
Rud. 11/4"
Ail 5/8" up 1/2" down
high rate no specs
this is not a 3D plane so...............
Ted Kennedy - 11 Dec 2009 18:55 GMT
> > Has anyone built one of these and still has the manual? I have tried
> > the SIG site but there is no way to download the manual that I could
[quoted text clipped - 7 lines]
>
> Wayne
YES! Thank you!
ecregger - 12 Dec 2009 08:36 GMT
On Dec 10, 10:58 pm, "Wayne" <NOwaynerrS...@comcast.net> wrote:
> "Ted Kennedy" <spugskenn...@gmail.com> wrote in message
>
[quoted text clipped - 11 lines]
>
> Wayne
YES! Thank you!
Now this would make a fine ARF model. I would think that they would not have
trouble selling hundreds of Four Star 120 ARFs. How about it, Sig?
Ed Cregger
BrianSmith - 14 Dec 2009 00:50 GMT
They have been around for at least a couple years.. Bria
--
BrianSmit