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Offline NZSnowman

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Ship building
« on: 03 Nov , 2009, 13:27 »
For a long time now I been try to workout the name of cut out holes they used in airplane and ship building (the pink ring -below) to cut down on the weight from plate. Does anyone know that these are call, the cut outs?

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Offline Greif

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Re: Ship building
« Reply #1 on: 03 Nov , 2009, 14:18 »
Quote from: NZSnowman on 03 Nov , 2009, 13:27
For a long time now I been try to workout the name of cut out holes they used in airplane and ship building (the pink ring -below) to cut down on the weight from plate. Does anyone know that these are call, the cut outs?



Hi Simon, in some plans I have for WWII aircraft they are called "cut-outs", not very original or sexy I know!  I have also heard them unoffically referred to as "mouse holes".

Ernest
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Offline billp51d

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Re: Ship building
« Reply #2 on: 03 Nov , 2009, 18:38 »
     Also known simply as 'lightening holes"...
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Offline NZSnowman

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Re: Ship building
« Reply #3 on: 03 Nov , 2009, 18:49 »
Thanks, Bill & Greif.

I think now I have heard before 'Lightening holes'  ;D :D
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Offline Rokket

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Re: Ship building
« Reply #4 on: 13 Nov , 2009, 17:38 »
A bit late, but Google helps me concur:

"Maritime & Shipping
LIGHTENING HOLES
A hole cut in a plate to make it lighter and yet not reduce its strength. Sometimes large enough to be called a manhole. "

Als numerous ix and references inc aircraft. Col, never thought about name!
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Offline Rokket

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Re: Ship building
« Reply #5 on: 13 Nov , 2009, 17:39 »
hey, nice dwg too - have you thought of doing a whole uboat? ;D
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