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Stinky The Clown

(67,808 posts)
Wed Mar 6, 2013, 12:19 AM Mar 2013

2.36" okay. 2.37" not okay?

The new TSA rules allow small folding knives on board airplanes. The blades must be no bigger than 2.36" long and 0.5" wide.

Really?

Show of hands: Who has a ruler that can measure 2.36"

I can measure 2-3/8", 2-5/16", even 2-19/64? But 3.36"?

Why do we always do this sort of shit?

28 replies = new reply since forum marked as read
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2.36" okay. 2.37" not okay? (Original Post) Stinky The Clown Mar 2013 OP
Maybe it's meters? Arctic Dave Mar 2013 #1
The metric system never really took hold in the U.S., did it? 6cm leveymg Mar 2013 #2
I know that. You know that. But it is an impractical rule in the US. Stinky The Clown Mar 2013 #10
They thought they had to dumb-down the international rule so Americans could understand it. leveymg Mar 2013 #13
They do say 6cm muriel_volestrangler Mar 2013 #17
That's a ripoff. 6 cm = 2.3622 inches not 2.36. slackmaster Mar 2013 #24
6 cm bluedigger Mar 2013 #3
Maybe that's the length of a common pocketknife? I don't see why that's allowed... Honeycombe8 Mar 2013 #4
Well, I might guess this to be an attempt to get the average "joe" to learn conversion hlthe2b Mar 2013 #5
They took a wee knife of mine that had a blade barely an inch and a quarter long Warpy Mar 2013 #6
Those who know human anatomy can merely use an inkpen... hlthe2b Mar 2013 #7
Welcome to the No Fly List! Union Scribe Mar 2013 #12
I'm guessing because it's actually in centimeters, like the rest of the civilized world. eom TransitJohn Mar 2013 #8
It would be just a bit more than of 2 5/16" which many rulers can measure. dsc Mar 2013 #9
The majority of the world's rulers can measure that just fine cthulu2016 Mar 2013 #11
Somebody learned to dimension from a CAD utility Mopar151 Mar 2013 #14
DHS and TSA expenses are nearing $1 trillion and this is all we've gotten for it. Fire Walk With Me Mar 2013 #15
It's 6 cm. Demo_Chris Mar 2013 #16
Well, my current pocket knife is too long. MineralMan Mar 2013 #18
How about we keep knives off airplanes, but dispense with the shoe bullshit? hatrack Mar 2013 #19
So nail clippers are allowed again? talkingmime Mar 2013 #20
You can also now take on Hockey Sticks, LaCrosse sticks and pink-o Mar 2013 #21
I made a real scene at Narita airport in Tokyo back in 1996. I had a Fuji stick, i.e. a souvenir.. slackmaster Mar 2013 #25
You know what a camel is, right? Javaman Mar 2013 #22
I have a stainless steel machinist's rule that can measure in 64ths. To measure in hundredths... slackmaster Mar 2013 #23
imo: Sometimes the laws suck. In_The_Wind Mar 2013 #28
look on the other side of the ruler, the real cutoff is 6cm. unblock Mar 2013 #26
So - we get to start hearing "whip it out, I'll get a ruler" at the airports now? tjwash Mar 2013 #27

leveymg

(36,418 posts)
2. The metric system never really took hold in the U.S., did it? 6cm
Wed Mar 6, 2013, 12:22 AM
Mar 2013

I see . . . why not 7? Why can't I take an AK-47 on board - that would be my 2A right, wouldn't it?

It's just numbers and more numbers . . .

Stinky The Clown

(67,808 posts)
10. I know that. You know that. But it is an impractical rule in the US.
Wed Mar 6, 2013, 12:33 AM
Mar 2013

Had they expressed the size to the closest 1/8" *below* the international standard we'd be fine. Or maybe express it both ways, so it is clear world-wide: 6cm/2-5/16?

Someone with a 2-3/8 blade could literally go to jail for that extra 16th inch. Measure the blade and call it "close" and you could be making a big mistake.

**OR**

Just say 6 cm. Almost everyone has a ruler graduated in mm.

leveymg

(36,418 posts)
13. They thought they had to dumb-down the international rule so Americans could understand it.
Wed Mar 6, 2013, 12:51 AM
Mar 2013

In so doing, they created another set of problems. Situation Normal, All F-cked Up.

muriel_volestrangler

(101,321 posts)
17. They do say 6cm
Wed Mar 6, 2013, 07:14 AM
Mar 2013
blades that are 2.36 inches or 6 centimeters or less in length

Of course, then they fuck up the dual measurements by also saying "less than 1/2 inch in width" without an equivalent in cm. But the width requirement doesn't seem to be used elsewhere (eg http://www.heathrowairport.com/heathrow-airport-guide/heathrow-security/hand-baggage ).

Which does bring up a question: why is a wide knife more dangerous than a narrow one?
 

slackmaster

(60,567 posts)
24. That's a ripoff. 6 cm = 2.3622 inches not 2.36.
Wed Mar 6, 2013, 11:04 AM
Mar 2013

That extra 2.2 thousandths of an inch could make a real difference.

I used to carry a folding Buck knife with a 4.5 inch blade on planes all the time.

Honeycombe8

(37,648 posts)
4. Maybe that's the length of a common pocketknife? I don't see why that's allowed...
Wed Mar 6, 2013, 12:24 AM
Mar 2013

I don't see why they'll be allowing pocketknives, anyway, of any size. They're weapons and can easily be used to slit someone's throat. I wonder what the reasoning is. No 4 oz shampoo bottle, but a knife is allowed?

hlthe2b

(102,292 posts)
5. Well, I might guess this to be an attempt to get the average "joe" to learn conversion
Wed Mar 6, 2013, 12:25 AM
Mar 2013

of fractions, but then again, I highly doubt the average "TSA" agent can do so.



Ok, ok, I know that that is insulting for those who strive to be professional with the TSA, but in my experience, the stereotype is not without some truth.

Warpy

(111,273 posts)
6. They took a wee knife of mine that had a blade barely an inch and a quarter long
Wed Mar 6, 2013, 12:26 AM
Mar 2013

that I had planned to cut yarn when I was knitting. They whined about the kntting needles, bamboo circs, but I pointed out the bamboo was far too fragile to make a good garotte.

Next time I'm going with a dental floss container to cut my yarn. Let's see the little bastards confiscate that.

If they only realized how dangerous I am with just my thumbs...

Nurses know how to hurt people.

hlthe2b

(102,292 posts)
7. Those who know human anatomy can merely use an inkpen...
Wed Mar 6, 2013, 12:28 AM
Mar 2013

Oops, I probably should not have said that...


Good thing I'm a pacifist...

dsc

(52,162 posts)
9. It would be just a bit more than of 2 5/16" which many rulers can measure.
Wed Mar 6, 2013, 12:31 AM
Mar 2013

2 5/16 is 2.3125. 2 3/8 is 2.375. Frankly I would have written the reg as 2 3/8 but 2 11/32 would also work and some rulers can measure that.

Mopar151

(9,985 posts)
14. Somebody learned to dimension from a CAD utility
Wed Mar 6, 2013, 01:40 AM
Mar 2013

It's 60 mm (2.364), rounded down to 2.36. In common American inch dimensioning systems, a "2 place" dimension is +/- .01, sometimes called a "scale" dimension for the usual method of measurement. As are fractional dimensions, i.e. 2 3/8", is +/- 1/64 (or .015). And, if Gandalf Jr.,Wizard of the Haunted Fishtank, selects the wrong "H limit" metric clearence fit from the drop-down menu, they can be the exact same number, sorta, kinda.
So, that's how we get to things like this - give an idiot an expensive tool (like Solidworks), a very highly developed system like ANSI or ISO standards, and they can needlessly complicate anything (aka fuck up toast)
I fix this kind of stuff for a living.......

 

Fire Walk With Me

(38,893 posts)
15. DHS and TSA expenses are nearing $1 trillion and this is all we've gotten for it.
Wed Mar 6, 2013, 01:42 AM
Mar 2013

Eliminate them both immediately.

MineralMan

(146,317 posts)
18. Well, my current pocket knife is too long.
Wed Mar 6, 2013, 10:07 AM
Mar 2013

Time to go to Amazon and get the smaller version of my Schrade Old-Timer stockman's knife, just for travel. I've carried a pocket knife all of my adult life, and am not ready to stop. Until now, I've been putting my pocket knife in my checked luggage when I travel. But, if I can carry one now, I'll get one that fits the regulations.

I use it for a wide variety of tasks. The most frequent use, though, is opening packages. Any packages, including those nasty blister packaged products. I cannot say how many times I've opened something for someone else with my pocket knife. Too many to count.

I once field dressed a deer with my Shrade Old-Timer stockman's knife. I left my other knife in camp. It did a great job, even for that use. I was surprised.

pink-o

(4,056 posts)
21. You can also now take on Hockey Sticks, LaCrosse sticks and
Wed Mar 6, 2013, 10:42 AM
Mar 2013

2 golf clubs!!!



And yet: You still can't take full-sized toiletries or a bottle of water thru. I had a passenger sent back to the Ticket Counter because he had a freakin' SNOW GLOBE!! Some genius figured it had more than 4 oz's of liquid, so it had to be checked in. This is the mentality we're dealing with.

So...you can beat a Flight Attendant up with a putter, or cut her with a Swiss Army knife (it's okay: The Cockpit doors are locked, so the Pilots are protected!) but you and I still have to take our shoes off, buy itty bitty tubes of toothpaste, and leave our tweezers at home.

I'm starting to think Sequester might actually be good for the TSA!!!!

 

slackmaster

(60,567 posts)
25. I made a real scene at Narita airport in Tokyo back in 1996. I had a Fuji stick, i.e. a souvenir..
Wed Mar 6, 2013, 11:08 AM
Mar 2013

...walking stick from climbing Mt. Fuji.

The security people put a sticker on it that said "Weapon" in English, and they put it in the checked baggage.

It did make the journey OK, and I was reunited with it in San Diego.

They didn't care about the Shuriken I had in my carry-on, even though carrying that concealed in California is technically illegal.

 

slackmaster

(60,567 posts)
23. I have a stainless steel machinist's rule that can measure in 64ths. To measure in hundredths...
Wed Mar 6, 2013, 11:01 AM
Mar 2013

...I use a precision dial caliper.

Why do we always do this sort of shit?

I don't know, Stinky. It's kind of like the state of New York deciding that a gun that holds 7 rounds of ammunition is OK, but one that holds 8 is not.

Here in California we go for more sensible numbers like 10. At least that's the base of the most commonly used numbering system, so it makes some kind of sense.

unblock

(52,253 posts)
26. look on the other side of the ruler, the real cutoff is 6cm.
Wed Mar 6, 2013, 11:13 AM
Mar 2013

2.54 cm per inch.

2.36 inches = 5.9944cm
2.37 inches = 6.0198cm

tjwash

(8,219 posts)
27. So - we get to start hearing "whip it out, I'll get a ruler" at the airports now?
Wed Mar 6, 2013, 11:19 AM
Mar 2013

Why do I know that it was a bunch of guys that made this shit up?

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