Where is the best place to mount full size VBAR sensor

TommyBear · 06-23-2012, 04:26 AM

Hi Guys,
Where would be a better place to mount the Full size VBAR sensor on a TREX 550E V2?

1. Directly on the mount area behind the swash plate or
2. Directly below the main shaft on the bottom tray.

I have previously mounted Mini VBAR on the mount area behind the swash plate on my two other TREX 550s and they flew great.
On my current TREX 550 V2 I am using a full size VBAR and I have mounted the sensor on the bottom tray directly below the main shaft. However on FFF I am getting tail wag.
Has anyone else experienced similar issue? VBAR and TREX 550 are brand new.

Thanks in advance.

bad007 · 06-23-2012, 06:35 AM

The least amount of vibes are on the lower plate but the frame flexes a bit. I added 600 boom braces and cut to fit and it stiffened it up. The stock is to flimsy.

TheBum · 06-23-2012, 04:23 PM

Either location is OK if you can sufficiently dampen vibrations. Neither location has any advantage from a sensing standpoint. As I pointed out to another member recently, all parts of the heli rotate at the same rate; the only difference is in the amount of linear movement of the sensor, which the sensor can't see.

paccy · 06-23-2012, 08:42 PM

Mine is mounted on a kde gyro plate above the servos at the front, main unit on the tray at the back. No probs at all the heli flies really nice.

06-23-2012, 04:26 AM	#1
TommyBear Registered Users Join Date: Nov 2011 Location: Australia	Where is the best place to mount full size VBAR sensor Hi Guys, Where would be a better place to mount the Full size VBAR sensor on a TREX 550E V2? 1. Directly on the mount area behind the swash plate or 2. Directly below the main shaft on the bottom tray. I have previously mounted Mini VBAR on the mount area behind the swash plate on my two other TREX 550s and they flew great. On my current TREX 550 V2 I am using a full size VBAR and I have mounted the sensor on the bottom tray directly below the main shaft. However on FFF I am getting tail wag. Has anyone else experienced similar issue? VBAR and TREX 550 are brand new. Thanks in advance.

06-23-2012, 06:35 AM	#2
bad007 Registered Users Join Date: Nov 2009 Location: New Brighton, PA	The least amount of vibes are on the lower plate but the frame flexes a bit. I added 600 boom braces and cut to fit and it stiffened it up. The stock is to flimsy. __________________ Align 450Pro 3GX, Align 500 3G Align 550 3g, Velocity 50 Vbar

06-23-2012, 04:23 PM	#3
TheBum HF Support My HF Map location Join Date: Jul 2007 Location: McKinney, TX, USA, North America, Earth, Solar System, Milky Way, Universe	Either location is OK if you can sufficiently dampen vibrations. Neither location has any advantage from a sensing standpoint. As I pointed out to another member recently, all parts of the heli rotate at the same rate; the only difference is in the amount of linear movement of the sensor, which the sensor can't see. __________________ Alan (just call me "Bum"; no need to be so formal) HeliFreak Support Nankin Hobby Field Rep, Compass Support Team Helis: Compass Atom 500 (V-Bar), Compass Atom 6HV (V-Bar), Blade 130X, Blade mCPX Experience is something you obtain only after you need it. I wouldn't mind social media so much if it didn't involve people.

06-23-2012, 08:42 PM	#4
paccy Registered Users Join Date: Sep 2010 Location: Victoria, Australia	Mine is mounted on a kde gyro plate above the servos at the front, main unit on the tray at the back. No probs at all the heli flies really nice. __________________ Kasama Faifa 4525le Vbar LRH Stretch 12s 550e Rexy Vbar DFC Compass 7HV Vbar Trex 450pro sk540

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