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q12023, Why so abrasive (chuckle) with the good doctor? He has a point about consumption, as it's not as easy to replace an abrading solid as it is to pipe in fresh fuel. As for a practical friction energy source, you would a pre-existing and plentiful input like flowing water. I think any...

sluggo, One positive aspect of your current method (rotating tube fixed glue head) is that you won't get repetitive stress on the feed tube and other components of the glue head. If it was rotating, you might need a rotating fitting, which are notorious leakers. Unless your tube is...

Take a look at US News and World report for the ratings of various engineering programs.  As for the best or biggest schools in CA and TX, you would be looking at California Institute of Technology or Texas A&M (Agricultural and Mechanical).

The crash V-22 had a rate of descent *too high* for its slow rate of forward speed and entered vortex ring effect.&nbsp;&nbsp;Vortex ring effect is a hazard common to all helicopters and tiltrotors.<br><br>The ship is in Low Rate Initial Production and is currently completing operational...

I'm looking for data on emissions compliance costs in aircraft paint facilities.&nbsp;&nbsp;A US Department of Defense source or contact would be ideal.<br><br>Thanks in advance!

rth,<br>&nbsp;&nbsp;In regard to your last observation:<br>I learned what I know about tooling design from old-guard machine shop guys.&nbsp;&nbsp;That will teach you to consider what the tools can do, what they can't, and maybe more importantly - what the shop machines can do.&nbsp;&nbsp;One...

I'm looking for data on the long-term costs of operating an aircraft painting facility which uses traditional high-VOC paints.&nbsp;&nbsp;It should include the cost of environmental compliance for waste disposal/emissions.&nbsp;&nbsp;If you have a contact for this sort of data in Department of...

I would recommend trade mags - such as Pulp and Paper, Design News, etc.&nbsp;&nbsp;Every industry has 2 or 3 and each issue generally has some surveys about problems companies have, etc.&nbsp;&nbsp;Try walking into the waiting room at your local factory that makes &lt;insert product here&gt...