Label / placard requirements

[TX7A]

Is labeling required for the throttle/prop/mixture controls? (I know they each have a different "feel" by how the knob is molded.) I've looked in the FAR's for the info but what I find is for certificated A/C.
Also, I want to label my autopilot toggle switch as "A/P". (Because of space constraints.) Is that acceptable?
Does the word "ON" have to be on a toggle switch label; or is it assumed that if the switch is up, then it is on?
Am I over-thinking this stuff??
Is there a source for these types of labeling requirements for experimental A/C? What do the DARs expect?....
(Hope I'm not opening a can of worms here )
Thanks,

[az_gila]

Originally Posted by 7A_@ABI

Is labeling required for the throttle/prop/mixture controls? (I know they each have a different "feel" by how the knob is molded.) I've looked in the FAR's for the info but what I find is for certificated A/C.
Also, I want to label my autopilot toggle switch as "A/P". (Because of space constraints.) Is that acceptable?
Does the word "ON" have to be on a toggle switch label; or is it assumed that if the switch is up, then it is on?
Am I over-thinking this stuff??
Is there a source for these types of labeling requirements for experimental A/C? What do the DARs expect?....
(Hope I'm not opening a can of worms here )
Thanks,

...might help giving you guidelines.

http://members.eaa.org/home/homebuil...%20items.html?

Member login may be required.

[Ted RV8]

The way I was told by my FSDO.

Everything had to be labeled in such a manner that if anybody jumped in your plane to fly it.... they could see what everything did. Even if they were stealing the plane.

Assume nothing. You know what that word means as*-u-me.

Ted

[dhall_polo]

I have the standard shaped push/pull vernier style throttle/prop/mix, so it should not be required to label them, but my DAR wanted labels. Enough said. So I have little circular labels that fit on the ends of the controls. It actually looks ok labeled.

If you want to save some time, I have a throttlepropmix.doc file that you can use to make your own. I just printed them to a glossy photo using a photo printer. You can optionally laminate if you want them to last. Then just cut them out and afix them with some two-sided tape.

Don

[RVadmirer]

I can't find enough room to label the buttons/switches as well as the Up-Down functions for trim and flaps where my hand doesn't rub them off. Anybody find a solution?

[Steve]

My controls and switches are labeled in name only (THROTTLE, LANDING LIGHT, etc). Their function or operation is not labled. My DAR never said a word about it.

All thieves left behind,

[TX7A]

Thanks, Gil & others.
I looked through documentation and LOTS of forum panel pics and I've just about decided that there's about as many answers to my questions as there are panels.

[Mel]

Originally Posted by Steve

My controls and switches are labeled in name only (THROTTLE, LANDING LIGHT, etc). Their function or operation is not labeled. My DAR never said a word about it.

If the operation of the control is "normal or standard" for that particular control, I usually won't question it. However, if the operation of the control differs from normal or standard, then it should be labeled as such.
Just use a little common sense. If I get in your aircraft and can't figure out how to operate a control properly, then I want to see properly labeling.

[dedgemon]

Any suggestions here Mel? A placard maybe?

[Mel]

Originally Posted by dedgemon

Any suggestions here Mel? A placard maybe?

Same rule applies. Each function should be labeled. If the operation is obvious, then you need not go further. For example, trim button needs a label to show "Trim". If pushing forward trims nose down, that's normal. If pushing left trims left roll, that's normal. Any operation not normal needs additional labeling.
This is the way I look at it. Other inspectors may require more.