View Full Version: Prop Safety

MARCMAF > Anything Else RC Related > Prop Safety


Title: Prop Safety
Description: Spinning Knives


TJR - August 23, 2009 05:31 PM (GMT)
Here's a link to the RCUnivers Forums and what happened to a friend of mine (graphic picture). It can happen at any time to anyone. Please be careful.

http://www.rcuniverse.com/forum/m_9036411/.../tm.htm#9036411

Avistar 2 - August 23, 2009 08:08 PM (GMT)
Good Point to put across as good advice
that why we have chicken sticks and 12 or 6 volt electric starters...

Flying Dutchman - August 24, 2009 01:13 AM (GMT)
QUOTE
that why we have chicken sticks and 12 or 6 volt electric starters...

Which really has nothing to do with what happened...
You just don't read everything, do you, Avistar 2?

No matter by which means you start an engine, you should keep you hand or fingers out of the spinning propeller.

If you actually read the guy's comment — he said that he tried to stop the plane as a reflex, because it was coming at him, and IT WAS NOT RESTRAINED in any way!

At our field, one of our rules REQUIRES all planes to be restrained by either another person or by a mechanical restraining device.... :yes:

Avistar 2 - August 24, 2009 03:31 AM (GMT)
Well , it not a good idea start a prop with your bare hands , and yes I did read it though, .
know how fast the prop starts very quickly, accidents do happen when you don't aspect for them to happen. My former RC instructer said that 1 can get his fingers pretty banged up and cut up on the feild.
but to have a first aid kit near by.
besides TJR has a good point.

Flying Dutchman - August 24, 2009 09:31 AM (GMT)
He did not start the engine with his bare hand.
As an instructor I never allow my students to flip a prop with their fingers.
I discourage anyone from doing that.

Avistar 2 - August 24, 2009 12:52 PM (GMT)
I'm wondering if if a wooden prop did that.
I know these Nylon Props are sharp, my former instructor always tells to smooth the edges on my props.

another RC rule I think I know is never stop a spining prop with your hands.
and I was told to be careful when removing the glow plug wire while the RC airplane Engine was runing , remove the plug wire from behind.

TJR - August 24, 2009 01:32 PM (GMT)
Due to poor planning on my part, I had to use a glo igniter that plugs into my power panel for my Cub, but I suggest to anyone, to use a cordless igniter if at all possible. I think the chance for getting the wires caught in a spinning prop are too great and should be avoided if at all possible. When I get home this week, one of my projects will be to move my remote glow connection so I can use my cordless igniter.

Flying Dutchman - August 24, 2009 02:44 PM (GMT)
QUOTE
I'm wondering if if a wooden prop did that

If you had read what the man wrote, you would know that it was an APC prop, which is a gray prop, made of composite materials. You don't ever read everything, do you?
APC props are stiff, and not as flexible as a plastic prop.

It's a good idea to dull these sharp props slightly. And when tightening the prop nut, hold on to the prop with the blade wrapped in a paper towel or rag.

As far as using a wired glow igniter...
I always show my students to hook the cable behind the muffler, which always works.
Or just move the field box far enough toward the side and the back of the plane so the cable is not in the way.
In my 19 years as an instructor, an ignitor cable has NEVER been caught in the prop.

Avistar 2 - August 24, 2009 02:58 PM (GMT)
You would still have remove the battery operated glo igniter from behind the spining prop .Gezz Frits I been Practicing with my avistar.
Why are you sooo stubing? I have praticing safe way to remove my battery Glo igniter and it seems to be safer to get the igniter from behind the plane and press
and left stright up.
I bet Alvin agrees that is the safe way .

I read Grandpa, as i have said before if Wooden props would cut you
my former instuctor always tells me to smooth down the sharp edges on the prop
no matter what it made of, wooden do bang your fingers pretty hard.

Flying Dutchman - August 24, 2009 04:34 PM (GMT)
QUOTE
You would still have remove the battery operated glo igniter from behind the spining prop .Gezz Frits I been Practicing with my avistar. Why are you sooo stubing?

Yes, I also preach to never reach over the prop to remove the glow driver or to adjust the engine's needle valve.
Doing so will put the inside of your wrist in danger. And that's where the arteries and tendons run.

"Stubing"? Oh, that's AvistarSpeak for "stubborn"...
What the hel| did any of my comments have to do with being "stubing"?... :angry:

Avistar 2 - August 24, 2009 08:11 PM (GMT)
you would have to get an extension tool for that needle valve adjustment
but you would think the company has moved the needle valve back some for clearness for your wrist.

Flying Dutchman - August 24, 2009 09:11 PM (GMT)
QUOTE
but you would think the company has moved the needle valve back some for clearness for your wrist.but you would think the company has moved the needle valve back some...

Some companies actually have...

ole greg - August 25, 2009 01:07 AM (GMT)
At least you know when a slimer is gonna start. Those "little electric" planes can start up with the lightest bump of the throttle stick, and they wont die like a glo engine will. Electric motors will keep chopping away till something gives. So much for "little toys" huh.


ole greg - August 25, 2009 01:09 AM (GMT)
FD why u being so stubing anyway? Your just jealous of Avistars mastery of the english language :hysterical:

Flying Dutchman - August 25, 2009 01:26 AM (GMT)
:angry:

ole greg - August 25, 2009 01:48 AM (GMT)
QUOTE (Flying Dutchman @ Aug 24 2009, 07:26 PM)
:angry:

:itsok:

Avistar 2 - August 25, 2009 05:29 AM (GMT)
if he don't understand , a good demo is taking a raw hotdog and placing it close to RC plane spining prop.

I know 40 size plane spining prop can hurt , but imagation a 90 size prop feels like.
If frits think I'm nonsense than I'm sorry he get use his imagation.



I rember a movie called family flight on tv, the oldest son has killed the ignition battery in the plane play the onboard radio listing rock and roll durning the night.
in morning the came to start up the plane, of course the family was stranded on a lonly island because that's where crask landed. the father become tick off at his oldest son and kick hiss butt for what he did, well the only to start the plane
is by the old fashioned way stand on one side of the plane's plane prop and spin it.
well the plane's engine started but the father leg was seriously been cut and was lossing blood they had to put on turikit on his leg to slow the bleeding down.


I see why starting your RC plane by flipping the from over and over by hand is fricken risky.
and never clean out the bottom off your lawn mower with spark plug wire ingaged.

Still don't understand about what I mean about the FAMILY FLIGHT movie?
Look it up online Frits.
and that's no bull. ;)

Flying Dutchman - August 25, 2009 10:44 PM (GMT)
QUOTE
Still don't understand about what I mean about the FAMILY FLIGHT movie?

No, tell me about it.
Please... :rolleyes:

rescue911j1 - August 26, 2009 02:32 PM (GMT)
QUOTE (ole greg @ Aug 24 2009, 07:07 PM)
At least you know when a slimer is gonna start. Those "little electric" planes can start up with the lightest bump of the throttle stick, and they wont die like a glo engine will. Electric motors will keep chopping away till something gives. So much for "little toys" huh.

I know all about what the electric motors and there props can do to your fingers.
Been there. :yes:

Avistar 2 - August 26, 2009 05:00 PM (GMT)
Hey RC planes and helis are not toys.




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