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  #1  
Old 09-15-2010, 07:48 PM
avee8tor13 avee8tor13 is offline
 
Join Date: Dec 2008
Location: Northern VA
Posts: 141
Default End of throttle, mixture, prop knob decal?

Anyone know of decals to go in the end of the throttle, prop and mixture knob with the words, 'Full', 'IDLE' 'Full Prop' or similar wording?

Thanks
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  #2  
Old 03-17-2012, 06:50 PM
Jekyll Jekyll is offline
 
Join Date: Dec 2005
Location: Eastern PA
Posts: 625
Default

Looking for these as well. Spruce has mixture, cabin heat, parking brake and alternate air but, not prop and throttle. Spent hours searching Cessna parts sites but, couldn't find the last 2 I need. Anyone have a source?
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  #3  
Old 03-17-2012, 06:57 PM
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CharlieWaffles CharlieWaffles is offline
 
Join Date: Nov 2010
Location: West Linn, Oregon
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Default

These guys advertise regularly that they can engrave the control heads for verner or other style of cables. You dont have to use their cables, they will engrave other parts too.

http://www.mcfarlaneaviation.com
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  #4  
Old 03-17-2012, 07:14 PM
roee roee is offline
 
Join Date: Feb 2006
Location: San Diego, CA, U.S.A.
Posts: 770
Default Legal requirement?

Is there actually a legal requirement to have the throttle, prop, and mixture controls labeled with text?

I would have thought that using the standard arrangement for the engine controls and the standard knob shapes and colors for each would suffice. No?

Hoping to hear the answer from one of the DARs among us.

Thanks,
-Roee
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  #5  
Old 03-17-2012, 11:15 PM
aerhed aerhed is offline
 
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Location: Big Sandy, WY
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Start with FAR 23.777. Also, 23.1141-, and 23.1555
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  #6  
Old 03-18-2012, 02:59 AM
roee roee is offline
 
Join Date: Feb 2006
Location: San Diego, CA, U.S.A.
Posts: 770
Default Still a little fuzzy

Quote:
Originally Posted by aerhed View Post
Start with FAR 23.777. Also, 23.1141-, and 23.1555
Thanks. Yep, those seem to be applicable regs. But they still don't seem to unambiguously answer the question.

23.777(c)(3) and 23.777(d) specify how the engine controls should be placed. Check.

23.1555(a) specifies generally that the controls must be marked, but does not specify how they must be marked.

And that's the core of my question. Does "mark" necessarily mean "text placard"? Or can "mark" be satisfied by other means? In the case of the throttle, prop, and mixture knobs, one might argue that their function is already marked by putting them in the standardized locations and making the knobs have the colors and shapes that universally identifies that specific control per the FARs:

The required motion and effect of each control is specified in FAR 23.779(b)(1)

The required unique shape of each control is specified in FAR 23.781(b)

I couldn't find a FAR that specifies the standard color of each control (black - blue - red). Maybe that's just de-facto standard?

In any case, all of the above would seem to adequately "mark" the control for its function. So I'm wondering if text is still also required by the FAA's interpretation of the applicable FARs?
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  #7  
Old 03-18-2012, 03:35 AM
PCHunt PCHunt is offline
 
Join Date: Feb 2007
Location: San Diego, CA
Posts: 1,835
Default Question

Does FAR part 23 apply to EAB (Experimental Amateur Built) aircraft?

Not saying it isn't a good idea to follow convention, but can't you do nearly anything you want in an EAB aircraft?

Couldn't I design a plane that had a pedal for the throttle, for example? or maybe control yaw by twisting the stick grip left and right? etc. (Yep, I know, wild and crazy, but just asking the question.)
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  #8  
Old 03-18-2012, 03:46 AM
roee roee is offline
 
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Location: San Diego, CA, U.S.A.
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Quote:
Originally Posted by PCHunt View Post
Does FAR part 23 apply to EAB (Experimental Amateur Built) aircraft? ...
Good point, Pete.

I'll restate my question in terms of the EAB category:

If the throttle/prop/mix controls use the standard locations, motion, knob shape, and color, will a DAR also insist that they be labeled with text?
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  #9  
Old 03-18-2012, 12:28 PM
Jekyll Jekyll is offline
 
Join Date: Dec 2005
Location: Eastern PA
Posts: 625
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Back to the question of the thread: does anyone know of a source for stock stickers/decals that are ready to apply?

My cables are installed so, I'm definitely not interested in engraving them.
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  #10  
Old 03-18-2012, 05:10 PM
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AlexPeterson AlexPeterson is offline
 
Join Date: Sep 2005
Location: Ottertail, MN
Posts: 2,505
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Print them with a laser printer on clear, stick-em backed stock. All they have to do is stay readable until the inspection. Kind of like labeling the stick with "back for nose up". It doesn't matter if they are legally required or not, only matters what your DAR thinks.
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