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View Full Version : Best Replacement Tail Rotor Shaft


mbaran
02-18-2009, 11:51 PM
So I got my 4#3B last night. I've got good experience on an EF Mash coax so after 10 or so hard crashes I got it to hover okay.

I did happen to break the CF tail rotor shaft, the rotor fell off. For now, im using a bent up paperclip just so i can fly it.

I read one good mod, was the shaft from an old tail motor. Is this still the best setup. I was going to just buy a new tail rotor, and a spare motor (only 4.50 from wowhobbies) and pull the shaft out and use that..

Thanks!

BlackBeast
02-19-2009, 05:19 AM
You can also use shaft from main brushed motor.

Dusty1000
02-19-2009, 09:33 AM
The bent paperclip may just bend your bearings. For the short term I would cut the canopy rod, use it, and find something else to hold the canopy on with

mbaran
02-19-2009, 04:28 PM
Last night after a hit I lost the little rubber stopper on the other end. Any suggestions as to what works as a good alternative. If I use the motor shaft does it need any stopper still?

Thanks!

al_evans
02-19-2009, 04:50 PM
Last night after a hit I lost the little rubber stopper on the other end. Any suggestions as to what works as a good alternative. If I use the motor shaft does it need any stopper still?

I've successfully used a little piece of heat-shrink tubing, maybe with a little CA if it's not tight enough.

Myself, I wouldn't trust friction alone to hold it in place. I don't want to be looking for those little bearings.... :shock:

--Al Evans

john aeras
02-19-2009, 10:26 PM
One other thing you could use is a small piece of thin wire insulation. (usually off alarm or thermostat wire):thumbup:

BlackBeast
02-20-2009, 08:12 AM
I built a tutorial for tail rotor shaft. Look at it and tell what you think...

http://rcfriends.createforum.com/walkera-forum-f18/walkera-4-3-a-b-q-tail-rotor-shaft-tutorial-t136.html

john aeras
02-20-2009, 12:28 PM
I built a tutorial for tail rotor shaft. Look at it and tell what you think...

http://membres.lycos.fr/cqtranstemis/rc_heli/tail_rotor_shaft_tutorial/tail_rotor_shaft_totorial.htm

Excellent job Blackbeast!!
I think this one should should become a "sticky"
Any admins watching?

Dusty1000
02-21-2009, 10:21 AM
Nice one!
now I have a use for all the pinions on old motors I have lying around :)

al_evans
02-21-2009, 10:41 AM
I built a tutorial for tail rotor shaft. Look at it and tell what you think...

http://rcfriends.createforum.com/walkera-forum-f18/walkera-4-3-a-b-q-tail-rotor-shaft-tutorial-t136.html

Great tutorial!

I tried this yesterday, and it worked well -- unfortunately, somehow I slightly bent the motor shaft. I'll just wait for another dead motor;)

--Al Evans

BlackBeast
02-21-2009, 11:18 AM
Nice one!
now I have a use for all the pinions on old motors I have lying around :)

Thx john aeras, Dusty1000 and al_evans.

Normally, unless you own more than one 4#3s, you will only need to use one shaft and two pinions. It's almost UNBREAKABLE!