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Wren 44 Turbines and Multi Rotors

Posted 02-26-2012 at 06:28 AM by lperagallo

It's been a long time since my last blog generally because there hasn't been much excitement going on.
This fall WREN turbines announced Kero start for their Wren 44 turbine. Ron Ballard of Wren USA invited Chris Bergen and me to his shop in Decatur Indiana to be the first to convert our Wren 44 helicopter turbines. Needless to say I jumped on the chance. It is a relatively simple conversion and it works sweet. It does cost a bit as you need to change out the FADEC, fuel pump and install...
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Heli-Log 2:24:2012

Posted 02-24-2012 at 10:03 AM by rcnut

Almost the weekend and nothing but snow! But in the meantimeÖthe build is moving along on my new 6HV. Ordered (and received already) KBDD Blue Extreme Dampers, 96mm Extreme tail blades, and JR satellite DSMX receiver. After a little research, ah reading the fine print instructions, it states to use the optional receiver for heliís over the 600 class size.

I disassembled the rotor head (found one of the o-rings had squeezed out of the head, it is nicely deformed now), removed the stock...
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Heli-Log 2:20:12

Posted 02-20-2012 at 06:40 PM by rcnut
Updated 02-21-2012 at 05:42 AM by rcnut

Another weekend in the books!

The temps were in the low 40's with light winds. Disaster struck Saturday on the third flight with my 3D+, after replacing the MKS BL950 HV servos with MKS BL950's and installing an ATG, the 2 cell LiFe battery died! My 3D+ did one more low level back flip into the ground. Damage is minimal, but heart braking to say the lest. The LiFe battery was fully charged (2000mAh) and it was close to the end of the 3rd flight when it died.

Right...
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Heli-Log 2:16:2012

Posted 02-16-2012 at 09:47 AM by rcnut

Half way through another month!

Progress at last! I finish everything on my charging station except one exhaust cover for the case. The supplies are mounted, top plate installed, jacks wired (soldered), storage door added, and the charger is mounted and plugged in (including the 24V jumper wire). I did a power up test and everything looks good. I havenít tried charging anything just yet, I need to cut the case and install the other fan cover for proper ventilation.

...
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Heli-Log 2:11:12

Posted 02-11-2012 at 08:48 AM by rcnut
Updated 02-11-2012 at 09:56 AM by rcnut

I finally got around to resizing and uploading the pictures from my charging station project. PSP 1 shows the 2 supplies opened. I have to remove the chassis ground, otherwise it will be impossible to wire the outputs in series. As the second supply' output will become shorted.

PSP 8 shows the 120Vac input being extended so I can wire the two supplies together, have one power plug.
PSP 7 is the power plug removed so it can be mounted to the case.
PSP 5 shows banana jacks...
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