: Build Log
Lubos Pazderka F3J Aspire X-Tail
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Feb 26, 2009
, 09:48 PM
United States, CA, Midway City
Joined Dec 2003
Ok, I got working on the fuse and wing tips this eve and this is what I got done. The build is pretty straight forward and many things are done for you.
Since the ail horn is factory epoxied in and not adjustable, I needed to use the innermost hole in the servo arms. Doing this presented some minor problems that need to be addressed. Pictures below will make it clear.
I will be using:
Airtronics 761 throughout.
A123 2300mAh battery
Futaba R608 2.4g Rx.
Weight of Left tip : 319g
Weight of Right tip: 318g
Weight of Fuse RTF w/ wing screws: 803g ( note, 123g nose weight neded)
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This picture and the following 2 are from my Shadow build thread, need to grind away part of the clevis so the arms do not bind when servo arms move forward ( up ail).
If you do not clear enough of the clevis it will bind and bow the control rod and could result in burning up a servo.
This much is about right.
If you turn the horn up on end, you will see that this area needs to be sanded flush with the arms so no binding would result.
After trimming unnecessary parts.
This is what will be on the ail servo.
Output A is what is used on AIL, output B is what is used in Fuselage.
Aileron pushrods measure 66.20
And here we are waiting for the epoxy to cure on the right wing tip. I am using servo frames from SUSA. Same procedure as in the SHadow build.
Left tip. Couple pieces of tungsten to keep the servo from shifting. Remember to have servo centered also.
I had to dremel out some clearance to get the clevis in.
Here's view showing how much the arm/clevis sticks out over the skin. Not much and I don;'t want to use the stock bubble cover. But Flat covers won't work either.
Here's another look. The ail arm/clevis just barely protrude.
I used some balsa to space the pushrods out instead of cutting the servo tray to move the servos. Using the holes pictured yielded more than enough throw.
Last edited by fnnwizard; Apr 03, 2009 at