crpntr133
lost, even with a compass
If you count a super AL80, no they aren't all 7.25 or 7.2.
My PST E7-80 has an 8" diameter
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Geezer
Contributor
Try standing a 7.25 inch diameter tank next to a 8.0 inch tank - the difference in diameter is visually obvious.
The Kraken
He Who Glows in the Dark Waters (ADVISOR)
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I just placed one of my E7-80's on our surface plate here at work and checked its diameter with a height gage and test idicator of .0005" resolution.
The observed diameter is 7.3005".
The surface plate and gages are within their calibration period.
The observed diameter is 7.3005".
The surface plate and gages are within their calibration period.
D_O_H
Contributor
The Kraken:
The plot thickens...
teknitroxdiver
Contributor
Rotate the tank and see if it changes...steel tanks aren't perfectly round. Although I wonder if it could be 'lopsided' by 5/100 inch.The Kraken:
The Kraken
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I would but the decals would interfere with the diametric dimensions given, thus invalidating the observation.
An out of round condition does not reflect a non-confromance in overall diameter. One can have an object with a circumference that exactly that which is correct for a given diameter, but the diameter at any give point can vary significantly.
.010" would probably be an acceptable out of round condition. Keep in mind, however, that .010" is about the thickness of 3 pieces of notebook paper laid one on top of the other. It's a far cry from the .700" difference mentioned.
An out of round condition does not reflect a non-confromance in overall diameter. One can have an object with a circumference that exactly that which is correct for a given diameter, but the diameter at any give point can vary significantly.
.010" would probably be an acceptable out of round condition. Keep in mind, however, that .010" is about the thickness of 3 pieces of notebook paper laid one on top of the other. It's a far cry from the .700" difference mentioned.
teknitroxdiver
Contributor
Yeah that would be quite a difference. But wouldn't it be a .050 difference instead of .700?
Soggy
Contributor
Are you people seriously concerned about 1/20th of an inch? 7.2, 7.3, 7.25...it's really all the same, especially when you consider that tanks expand very slightly when full vs empty.
3 pages about the diameter of an E7-80...holy moly....
3 pages about the diameter of an E7-80...holy moly....
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