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General control line discussion => Open Forum => Topic started by: Paul Taylor on November 06, 2022, 09:40:40 PM

Title: How to connect prop with O-ring
Post by: Paul Taylor on November 06, 2022, 09:40:40 PM
Hey Guys
First time I have put a prop on a electric 1/2a.

This seems a little sketchy to me. It is just looped over once or do I double it?

Title: Re: How to connect prop with O-ring
Post by: Dennis Adamisin on November 07, 2022, 08:25:52 AM
Hey Guys
First time I have put a prop on a electric 1/2a.

This seems a little sketchy to me. It is just looped over once or do I double it?

Looks right to me.  If its too tight it will not "release" on a nose over nor save the prop.  Only trouble I ever had was I had to slightly chamfer the back of the hole (sometimes) to get it to settle flat onto the hub face plus center on the hub.

Take spare O-rings to the field.  If/when they do pop-off the chances of finding the ring are slim & none...
Title: Re: How to connect prop with O-ring
Post by: Paul Taylor on November 07, 2022, 09:13:14 AM
Thanks Dennis.

I will need to order a pack of rings. 🤣
Title: Re: How to connect prop with O-ring
Post by: Dwayne Donnelly on November 07, 2022, 09:42:02 AM
Looks good, do you fly combat?  You can use 1/4"id 1/16" wall surgical tubing and cut your own O rings.
Title: Re: How to connect prop with O-ring
Post by: Paul Taylor on November 07, 2022, 02:14:26 PM
Looks good, do you fly combat?  You can use 1/4"id 1/16" wall surgical tubing and cut your own O rings.
No combat but I got some tubing from Windy. 😉
Title: Re: How to connect prop with O-ring
Post by: Paul Taylor on November 07, 2022, 02:15:58 PM
Well I spun it up and must have been too fast. Broke the O ring. Guess I need to slow it down. 🤪
Title: Re: How to connect prop with O-ring
Post by: Dwayne Donnelly on November 07, 2022, 02:39:06 PM
Well I spun it up and must have been too fast. Broke the O ring. Guess I need to slow it down. 🤪

Hmm, that shouldn't happen I've used O rings up to 8X6 SF  props with no issues, try cutting a o-ring about 3/32" thick, it should hold.
Title: Re: How to connect prop with O-ring
Post by: Dennis Adamisin on November 07, 2022, 03:08:57 PM
O-ring might have had a crack in it. Also, just to be safe, break the corner on the edge of prop hub.
Title: Re: How to connect prop with O-ring
Post by: Paul Wescott on November 08, 2022, 07:59:43 PM
Well I spun it up and must have been too fast. Broke the O ring. Guess I need to slow it down. 🤪

Those o-rings don’t like bolt threads.  Cover the threads with a small piece of fuel tubing or a couple wraps of whatever adhesive tape you can reach from where you’re sitting.

PW