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Jan 16, 2020, 08:40 AM
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Jubz's Avatar
It'll be interesting to see the difference you have from my 42mm trim. I have a white windy fuse and wondering how much difference it is from a non-painted standard fuse. Easy to trim; I used 6mm and 10mm Kapton tapes as a guide for the masking tape ring, and a diamond cutoff wheel with a Dremel. You'll have to lightly sand the inside of the nose section as the fit gets a little more snug when you start trimming its length.
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Jan 24, 2020, 11:06 AM
Registered User
What's everyone doing with their antenna(s)..out the back of the wing saddle? Other?
Jan 24, 2020, 12:03 PM
Martin
I just drilled two holes out the back of the Rx pocket.
Jan 24, 2020, 01:30 PM
Registered User
jojoen's Avatar
It is important to get them some distance behind the trailing edge if you want to be sure about max range.
A friend of mine (Stig Magne Olsen) have a cool solution that ensures that the ballast does not damage the antennas. You need to have decent length on your rx but I guess most rx's today have that.
The tubes also make it easy to hit holes further back in the boom.
Btw be careful not drilling holes and damaging the push rods... it has already been done by customers so instructions are updated on www.f3j.com

Jo
Jan 24, 2020, 01:56 PM
Registered User
Yeah ..I got a pushrod in my 1st attempt
Jan 24, 2020, 01:59 PM
Registered User
Quote:
Originally Posted by Joshadam
Yeah ..I got a pushrod in my 1st attempt
@jojo, one straight up, one straight down?..or just out the sides and down where I'll hit the pushrod again
Last edited by Joshadam; Jan 24, 2020 at 02:04 PM.
Jan 24, 2020, 02:09 PM
Registered User
jojoen's Avatar
Quote:
Originally Posted by Joshadam
@jojo, one straight up, one straight down?..or just out the sides and down where I'll hit the pushrod again
One up and one down will cover all angles
Jan 24, 2020, 02:11 PM
Registered User
Quote:
Originally Posted by jojoen
One up and one down will cover all angles
So , ignore the 90* rule?...seriously. not trying to be an ass here.. I mean it seems legit, have almost done it on other models
Jan 24, 2020, 02:25 PM
Registered User
jojoen's Avatar
You dont need to use 90 rule sideways. Just point them both slightly backwards and you cover that "rule".
To get them away from shadow is much more important.
In this case a huge wing flying home
Jan 24, 2020, 02:26 PM
Registered User
True...cool, thankyou
Jan 24, 2020, 02:28 PM
Registered User
jojoen's Avatar
Btw.. i use JR so it was very easy to install 3grams and a 3rd antenna behind the wing ;-)
Jan 25, 2020, 09:24 AM
Subliminal User
Jubz's Avatar
Antenna exits a little below centerline of the fuse; PTFE tubing used with a little hot glue to keep tubes sticking outwards.
Jan 25, 2020, 11:16 PM
Registered User
^ that's what I did when I must have damaged the ptfe tube and glued the rudder pushrod stiff in the tube
Jan 26, 2020, 09:55 PM
Martin
I cut a 13mm section off of the nose and the CG went from 111 to 114.5. I can start with the piece back in place with the aid of some tape and them remove it if I need a bit more aft CG.
Mart
Jan 27, 2020, 01:34 AM
Registered User
jojoen's Avatar
Quote:
Originally Posted by mrfski
I cut a 13mm section off of the nose and the CG went from 111 to 114.5. I can start with the piece back in place with the aid of some tape and them remove it if I need a bit more aft CG.
Mart
Why not use the battery to change the CG?


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