Trex 500 Pro EFL/DFC questions?

[richord]

I have seen the ESP airframe with the Mini Pyro 400-14. However, I haven't seen the newer Pro EFL or DFC with one. Anyone flying one of these with a Mini Pyro?

Also, the only bad thing I have heard about the DFC version is that in a crash the DFC links can cause a lot of damage. Are there carbon or plastic anti-rotation brackets available?

I have both heads and tails for an EFL and DFC. Looking for pros and cons on this as well.

[Gladius]

DFC likes higher headspeed and hard dampers. So depending on what you intend, either can work for you. For your tail, I would recommend that you use the dual arm slider, but I don't have any hard evidence that it's actually better.

[richord]

I purchased the heli with nanotech 2650 35c and pulse 2600 45c packs. The heli doesn't seem to balance well on the bench with these. It's a little tail heavy. I was hoping to save some weight with these vs. 3000 - 3300 packs. I will test fly this week and see. Looking for others experience with 2600/2650 vs 3000 and 3300 packs.

[Gladius]

I use 3000 and 3300mah packs with my 500. It has plenty of pop for me. I know that people do run 2650mah packs to lighten the heli for quick 3D. I think you need to just keep moving the pack forward until you get the balance right. You can also try moving your ESC/BEC farther forward. If your tail servo is boom mounted, then you can do a frame modification to mount it in the frame. It's not too hard to do - you just need to de-conflict the boom mount and servo mount locations.

[richord]

Originally Posted by Gladius

I use 3000 and 3300mah packs with my 500. It has plenty of pop for me. I know that people do run 2650mah packs to lighten the heli for quick 3D. I think you need to just keep moving the pack forward until you get the balance right. You can also try moving your ESC/BEC farther forward. If your tail servo is boom mounted, then you can do a frame modification to mount it in the frame. It's not too hard to do - you just need to de-conflict the boom mount and servo mount locations.

I have the lipo as far forward as will still fit inside the canopy. I'm not running a separate BEC. But I have a Talon 90 on the side. I will see if it can move forward a bit. The gyro may level it in flight, but I would much rather try to get the CG right.

[Gladius]

Yep, you definitely want the CoG as close as you can get it.