What does RKO mean on a drawing?

[dsjon10]

What does RKO mean on a drawing? I saw it on a drawing in refrence to a hole. Can someone explain what it means? Thanks

 

[CheckerHater]

"KO" could mean "knock-out"; not sure about "R".

Is part in question sheet metal?

 

[dsjon10]

It's in .06 AL

 

[CheckerHater]

The call-out is not standard.

"Round Knock-Out" would be my best guess.

 

[KENAT]

What if any drawing standard, or country, or industry...?

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[Belanger]

R = radius, perhaps?

John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems

http://www.gdtseminars.com

 

[CheckerHater]

What if any drawing standard, or country, or industry...?

Well, OP speaks English and measures material in Inches.

I suggest buying copy of Y14.38 - 2007 Abbreviations and Acronyms for Use on Drawings and Related Documents. If "RKO" is not there, then it is not standard in America.

Or we could start flame war about "industry standards"

 

[fsincox]

CH,
Good guess!

This is a beautiful example of why they want both to have standards and remove words from drawings. I bet you the guy who wrote it knew what he meant!
Frank

 

[MintJulep]

Rank Abbr. Meaning
**** RKO Radio Keith Orpheum (movie studio)
*** RKO Randy Keith Orton (wrestling)
*** RKO Runyon Kersteen Ouellette (accounting firm; Maine)
*** RKO Radio King Orchestra (Montgomery Village, MD)
** RKO Relativistic Klystron Oscillator
** RKO Rural King Ohio (farm supply store)
* RKO Russell K Osgood (Grinnell College)
* RKO Randys Knock Out (wrestling)

 

[CheckerHater]

Relativistic Klystron Oscillator would be my second guess.

 

[ctopher]

Back in the day it was common to see engineer's initials on drawing notes. Never understood it.

Chris
SolidWorks 11
ctopher's home
SolidWorks Legion

 

[ptruitt]

Two votes for Relativistic Klystron Oscillator

Peter Truitt
Minnesota

 

[KENAT]

CheckerHater, that was a bit unnecessary.

Back in England I spoke English and used inches about 1/2 the time. There were plenty of non standard terms and abbreviations there V here in the US.

Many component drawings done in other parts of the world that have to interface with components designed in imperial units/American customary will use inches.

Old drawings from many parts of the Commonwealth will be in inches.

Many industry sectors have their own common terms & abbreviations.

Giving/confirming any of this information might help lead to an answer.

dsjon10 sounds like you may need to go back to the drawing originator/whoever you got it from if possible.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[CheckerHater]

Kenat,

Sorry; didn't mean to get offensive.

Would you agree that if it's not in ASME or ISO "abbreviations", then it should be explained on the face of the drawing?

 

[KENAT]

Sure, that's why I asked about what standards/country.

However, from the point of view of answering the OP's question and helping him out is why I asked about industry etc. While abbreviations not in a referenced standard (could be an industry or company standard) or defined on the drawing shouldn't really be used, in practice they sometimes are used - especially where they are common in a specific industry sector etc.

However, I'm guessing you knew that already.;-)

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​

 

[dgallup]

Where did I put that Relativistic Klystron Oscillator?

----------------------------------------

The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

 

[KENAT]

You'd almost think it would be next to the Turbo Encacbulator.

Posting guidelines faq731-376

http://eng-tips.com/market.cfm?

(probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484​