Maiden Flight and Build shots with Full Size Vbar - HeliFreak
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NX4 Discussion and support of the Gaui NX4 Nitro Helicopter


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Old 12-16-2012, 11:04 PM   #1 (permalink)
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My HF Map location
Join Date: Mar 2007
Location: Mt. Prospect
Default Maiden Flight and Build shots with Full Size Vbar

I finally had a maiden flight today! Only one tank as Holiday family activities took precedent. I need to break engine in, tweak Vbar, hot glue the Vbar connectors, tweak Governor or even switch over to 2 channel mode.

Upgraded Items:
Metal Align fan.
Lynx m3x6 screws
Pitch slider maybe align maybe Gaui waiting to see if they replace non-damage pieces.
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Old 12-17-2012, 01:04 AM   #2 (permalink)
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That is great news! Can you tell me more about your radio setup;

- what does the cell phone do
- what mount is it
- How does it work

Looks great!!


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Old 12-17-2012, 08:19 AM   #3 (permalink)
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My HF Map location
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Location: Mt. Prospect
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Thanks you.
The cell phone setup uses a Bluetooth app to control all Vbar settings.
It is mounted on a GoPro camera bracket. On the phone I also have the Gopro wireless App, which allows wireless video playback from a Gopro mounted on a Hexacopter.
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Old 12-17-2012, 08:39 AM   #4 (permalink)
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VERY clean wiring job! Me likey!

Do you have any problems closing the canopy with the vbar mounted on the side like that? That may be an option for me, although I would hate to re-wire this bird!

Where did you end up on the vbar for your throttle end point for motor on/off? On mine, I ended up at 80% for Motor full throttle and -115 for motor off. I'm not getting good performance out of my setup and it could be that the vbar governor doesn't have good enough resolution on the throttle channel...but I'm not sure. It bogs doing tic tocs and sometimes when I do a fast pass and then flick the cyclic up fast to go inverted stop, you can hear the engine almost flaming out.
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Old 12-17-2012, 09:34 AM   #5 (permalink)
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I see you got a switch and a sg mounted in the same vicinity. Are you going to cut a hole in the canopy?
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Old 12-17-2012, 10:02 AM   #6 (permalink)
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I see the XT-60 connector. Nice. I ditched the Deans for those and have never looked back.


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Old 12-17-2012, 06:01 PM   #7 (permalink)
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Looks great! Love the wiring. Is that a particular fan everyone is using as a replacement.
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Old 12-17-2012, 10:19 PM   #8 (permalink)
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My HF Map location
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Location: Mt. Prospect
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Quote:
Originally Posted by caralmar View Post
VERY clean wiring job! Me likey!

Do you have any problems closing the canopy with the vbar mounted on the side like that? That may be an option for me, although I would hate to re-wire this bird!

Where did you end up on the vbar for your throttle end point for motor on/off? On mine, I ended up at 80% for Motor full throttle and -115 for motor off. I'm not getting good performance out of my setup and it could be that the vbar governor doesn't have good enough resolution on the throttle channel...but I'm not sure. It bogs doing tic tocs and sometimes when I do a fast pass and then flick the cyclic up fast to go inverted stop, you can hear the engine almost flaming out.
Canopy closes extremely easy with this setup with no restrictions at all. I had to tack the box with double sided a couple times up and down ever so slightly to get the fit just right. My throttle was -115 in off and approx 75 for full. Still not sure if I like the Gov since this was just a test run hovering. @Joallen001 I used the metal Trex 600N fan for 20.00 it also comes with a set of magnets. Do it and don't look back. The stock fan is crap! I really like the size of this nitro bird, it has some serious power almost cheek clenching.
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Old 12-17-2012, 10:23 PM   #9 (permalink)
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My HF Map location
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Location: Mt. Prospect
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Quote:
Originally Posted by Goodlett View Post
I see you got a switch and a sg mounted in the same vicinity. Are you going to cut a hole in the canopy?
Yes I bored a hole out with a Dremel. This really added undue stress to my type A psyche but the benefit out weighs the con.
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Old 12-27-2012, 05:54 PM   #10 (permalink)
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vteknical

The wiring looks great. It's a clean looking job.

What tape did you use for the V-Bar sensor? I see the metal plate but am wonder which tape for the sensor to the plate, then the metal plate to the heli.

Thank you

Joe
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Old 12-27-2012, 09:22 PM   #11 (permalink)
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Thank you. The metal plate comes with tape already mounted. The layer on the bottom(plate to Helicopter)is the vibration pad and the tape mounted to the sensor and plate is like 3M mounting tape.
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Old 12-28-2012, 07:17 AM   #12 (permalink)
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vteknical

Thanks for the info on which tape.

Happy flying.
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Old 12-29-2013, 04:13 AM   #13 (permalink)
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Becareful, your align fuel filter is in the wrong way.
The black part sould go near the carburator ;-)
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Old 12-31-2013, 01:23 AM   #14 (permalink)
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Are you using a regulator or HV servos ?
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Old 12-31-2013, 02:45 AM   #15 (permalink)
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I think he uses a Life 6.6v.
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Old 12-31-2013, 12:12 PM   #16 (permalink)
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Life...OK
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