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Weak link for PW-5

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Nyal Williams

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May 31, 2004, 2:36:54 PM5/31/04
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ThePOH calls for a maximum strength of the weak link to be 700 daN.
Does anyone know what that is in pounds?

Dan Babcock

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May 31, 2004, 3:26:04 PM5/31/04
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Slightly less than 1575 pounds. It is more accurately, 700 X 2.248 pounds.

For all sorts of conversion conundrums try http://www.onlineconversion.com/

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Jeff Dorwart

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May 31, 2004, 8:08:04 PM5/31/04
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dekanewton or decanewton (daN)a fairly common metric unit of force equal to 10 newtons.
The dekanewton is equal to 1 megadyne, to 1.019 716
kilograms of force (kgf) or kiloponds (kp), to 2.248
09 pounds of force (lbf), and to 72.3301 poundals.
In engineering, the dekanewton is a convenient substitute
for the kilogram of force or kilopond, since it is
nearly equal to those units.jeff

Ian Cant

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May 31, 2004, 10:17:04 PM5/31/04
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OK all you mathematical converters, aren't we asking
about a WEAK link ?

Ian

Bruce Hoult

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Jun 1, 2004, 3:46:02 AM6/1/04
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In article <10c10e75.04053...@posting.google.com>,
nyalwi...@comcast.net (Nyal Williams) wrote:

> ThePOH calls for a maximum strength of the weak link to be 700 daN.
> Does anyone know what that is in pounds?

No, but we can figure it out.

daN will be "deca Newton". A Newton is the force required to accelerate
1 kg at 1 m/s^2. Gravity can accelerate a kg at 9.8 m/s^2, so a daN is
near enough to the force required to pick up a 1 kg weight.

So 700 daN is near enough the force to pick up 700 kg (1500 lbs). Which
means it'll give a PeeWee well over a 2G jerk, and pick it up with ease.

Which will be great comfort to me, I'm sure, the next time I'm in a
PeeWee dangling on a rope under the big Pawnee as it does a banner
tow-style climbout.

-- Bruce

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