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snowball75 · 11-29-2011, 11:56 AM

So I have a TREX 500 and a Compass 6HV that I'm in the process of rebuilding. On the TREX500 I can rotate the head counter clockwise very freely. The tail spins along in the same counter clock wise direction. On my 6HV, I can't sping the head counter clockwise freely, rather the motor engages.

Should by 6HV spin freely like my TREX 500? I'm trying to figure out how the 6HV could auto-rotate if the motor or ESC dies. Am I making sense? Did I install something incorrectly on my 6HV drive train?

TheBum · 11-29-2011, 12:32 PM

Counterclockwise? The normal direction for rotor rotation in flight is clockwise and the head should spin clockwise very freely when the motor is not turning. Otherwise, it would be useless during autorotations. The motor should engage if the head is turned counterclockwise; otherwise, the motor wouldn't be able to drive the head.

Have you flown your T-Rex 500 lately? If the head spins counterclockwise freely, then your one-way bearing is probably toast.

snowball75 · 11-29-2011, 01:27 PM

Sorry I meant clockwise. I got my mords wixed.

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snowball75 · 11-29-2011, 01:29 PM

And no, my 500 does not spin freely counter clockwise. Should the compass head work the same way as the 500

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DominicD · 11-29-2011, 01:35 PM

hard to follow this CCW/CW discussion, if the head doesnt want to spin in the proper direction make sure you haven't installed the main gear assembly upside down.

TheBum · 11-29-2011, 02:41 PM

Quote:

Originally Posted by DominicD

hard to follow this CCW/CW discussion, if the head doesnt want to spin in the proper direction make sure you haven't installed the main gear assembly upside down.

In particular, the hub with the one-way bearing. There have been known cases of the OWB being installed backwards in the hub, in which case you'd have to press it out, flip it over, and press it back in.

snowball75 · 11-29-2011, 08:51 PM

Bum,

You nailed it. I had the OWB installed backwards. It's all fixed now. When I rotate the head CLOCKWISE it spins freely along with the tail. Now it will autorotate properly.

Thanks All!

DominicD · 11-29-2011, 09:22 PM

Quote:

Originally Posted by snowball75

Bum,

You nailed it. I had the OWB installed backwards. It's all fixed now. When I rotate the head CLOCKWISE it spins freely along with the tail. Now it will autorotate properly.

Thanks All!

OOOOOOOOOOOOH sure give Alan the credit

nwmtech · 11-29-2011, 09:28 PM

snowball75 · 11-30-2011, 07:18 AM

Hey D. LOL. Clockwise is rotating from left to right. Counter clockwise is rotating right to left. That's while you're facing it.

For the record, D gets credit for troubleshooting my stupidity. Ah, the fun of helicopters!

TheBum · 11-30-2011, 07:36 AM

Quote:

Originally Posted by snowball75

Hey D. LOL. Clockwise is rotating from left to right. Counter clockwise is rotating right to left. That's while you're facing it.

For the record, D gets credit for troubleshooting my stupidity. Ah, the fun of helicopters!

I was getting there. He just beat me to my second round of questions.

11-29-2011, 11:56 AM	#1 (permalink)
snowball75 Registered Users Join Date: Jul 2011	Seeking expert help. Head spinning - Auto Rotations So I have a TREX 500 and a Compass 6HV that I'm in the process of rebuilding. On the TREX500 I can rotate the head counter clockwise very freely. The tail spins along in the same counter clock wise direction. On my 6HV, I can't sping the head counter clockwise freely, rather the motor engages. Should by 6HV spin freely like my TREX 500? I'm trying to figure out how the 6HV could auto-rotate if the motor or ESC dies. Am I making sense? Did I install something incorrectly on my 6HV drive train?

11-29-2011, 12:32 PM	#2 (permalink)
TheBum HF Support My HF Map location Join Date: Jul 2007	Counterclockwise? The normal direction for rotor rotation in flight is clockwise and the head should spin clockwise very freely when the motor is not turning. Otherwise, it would be useless during autorotations. The motor should engage if the head is turned counterclockwise; otherwise, the motor wouldn't be able to drive the head. Have you flown your T-Rex 500 lately? If the head spins counterclockwise freely, then your one-way bearing is probably toast. __________________ Alan (just call me "Bum"; no need to be so formal) HeliFreak Support Protos Max Evo 700 (Brain 2), Protos Max V2 770 (iKON 2), Synergy 516 (Brain 2), Oxy 2 (Falcon 12) Graupner MZ-32 Experience is something you gain only after you need it. I wouldn't mind social media so much if it didn't involve people.

11-29-2011, 01:35 PM	#5 (permalink)
DominicD The Capi My HF Map location Join Date: Oct 2006	hard to follow this CCW/CW discussion, if the head doesnt want to spin in the proper direction make sure you haven't installed the main gear assembly upside down. __________________ Spreading capibara awareness since 2006

11-29-2011, 09:28 PM	#9 (permalink)
nwmtech Registered Users My HF Map location Join Date: Jul 2009	Lol

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11-29-2011, 01:27 PM	#3 (permalink)
snowball75 Registered Users Thread Starter Join Date: Jul 2011	Sorry I meant clockwise. I got my mords wixed. Sent from my Desire HD using Tapatalk

11-29-2011, 01:29 PM	#4 (permalink)
snowball75 Registered Users Thread Starter Join Date: Jul 2011	And no, my 500 does not spin freely counter clockwise. Should the compass head work the same way as the 500 Sent from my Desire HD using Tapatalk

11-29-2011, 08:51 PM	#7 (permalink)
snowball75 Registered Users Thread Starter Join Date: Jul 2011	Bum, You nailed it. I had the OWB installed backwards. It's all fixed now. When I rotate the head CLOCKWISE it spins freely along with the tail. Now it will autorotate properly. Thanks All!

11-30-2011, 07:18 AM	#10 (permalink)
snowball75 Registered Users Thread Starter Join Date: Jul 2011	Hey D. LOL. Clockwise is rotating from left to right. Counter clockwise is rotating right to left. That's while you're facing it. For the record, D gets credit for troubleshooting my stupidity. Ah, the fun of helicopters!

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