Trex 700 E Conversion - Part DEUX – Continued…….

The original plan was to do the following:
1. KDE Conversion kit.
2. KDE pinion support.
3. KDE 115T MOD 1 Main gear.
4. Castle Creations 160AMP ICE ESC.
5. KDE 1917H/1y-N42
6. Cyclic JR 8717
7. Spartan 760 or Quark.
8. Align 650.
9. 2 6S 5000mah 40C batts for a 12s setup.

However unlike my previous conversion there was a couple other things to consider. As soon as I got her put together and ready to test, her tail would kick like no other tail I’ve seen kick. So I contacted KDE to chat with them about it. It was suggested that I make it flybarless as the vbar does some tail to collective compensation.

After adding the vBar 4.0 to the bird and resolving some issues with vBar programming. It seemed to fly ok. But still, the tail wagged and gave way when doing tic tocs.

A friend of mine thought the vBar was working the tail too hard. After doing a little research I think he may be right, for the wrong reasons.
I got in contact with MrMel from Swedish through the forums. He had done some testing of the new more powerful electric .90s and found the that tail let go on .90 sized using 105 blades at high pitch, it's not a gyro issue, it's the limit of the tail, in other words, he reached the limit of what the tail was designed to hold with 105mm with the "new" power of electrics.

He also pointed out the tail servo I have been using has had issues when using in an vBar configuration.

So it looks like I am going to have to replace the tail servo. I am using one of the Outrage BL 8088 on my other Trex 700. I would like to put a Futaba BL 251, but that would mean I need to figure out a different power system. Maybe use a BEC to get the voltage down to where the BL251 can tolerate it. But if I use the BL 8088, I do not have to change a thing. I am running all my electronics on A123.

A slight modification in the plan:

1. KDE Conversion kit.
2. KDE pinion support.
3. KDE 115T MOD 1 Main gear.
4. Castle Creations 160AMP ICE ESC.
5. KDE 1917H/1y-N42
6. Cyclic JR 8717
7. vBar 4.0.
8. Futaba BL 251.
9. 2 6S 5000mah 40C batts for a 12s setup.
10. SAB 110mm tail blades.