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Drone uses

01/20/2018
posted in General Discussion
by ronseto
The use of drones along our southern border is the best use so far. Drones, once thought of as toys, have proven their real worth. they are used by ou...
Views: 8, Comments: 3
Last comment 01/20/2018 by Rixter
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BOSCH EDC7C4 WIRING DIAGRAM

01/20/2018
posted in General Discussion
by Ukeje
Thank you honorable members. Let us have access to the wiring diagram of Mitsubishi ME222389, MITSUBISHI FUSO TRUCK BUS CO ME225157 ORDER NUMBER 02810...
Views: 16, Comments: 2
Last comment 01/20/2018 by SolarEagle
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Wind Load for ISO Shipping Container

01/20/2018
posted in General Discussion
by Jazzman
Hi All , I need help calculating mph wind load to overturn a 20 ft and a 40 ft shipping container with the following specs. 40 ft -- 8ft wide 9.5 ft t...
Views: 30, Comments: 4
Last comment 01/20/2018 by Jazzman
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Star Delta Starter

01/20/2018
posted in Electrical Engineering
by S SRINIVASAN
what will happen if the motor meant for delta connection is made to run in star for longer periods. whether motor will fail or continue to run.
Views: 26, Comments: 2
Last comment 01/20/2018 by TonyS
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Train Brake System vs Semi Systems

01/20/2018
posted in General Discussion
by HiTekRedNek
On a semi tractor trailer,the brakes are applied by default if air pressure fails. Air pressure is required to release the brakes,but on trains,air i...
Views: 46, Comments: 9
Last comment 01/20/2018 by TonyS
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Yokogawa Centum VP FCS Problem

01/19/2018
posted in General Discussion
by Anonymous Poster
Hi! We got a Yokogawa Centum VP DCS that has been shutdown for 2 months. After powering the system last week, a Communication Error: FCS is down error...
Views: 33, Comments: 4
Last comment 01/20/2018 by rcledesma2012
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Protection of HV Air Core Dry Type Reactors

01/19/2018
posted in Electrical Engineering
by hakakiar
Hello, We are installing a 30MVAR 230kV shunt air core dry type reactor to be connected to a Transmission Line for voltage control, and I am trying t...
Views: 87, Comments: 10
Last comment 01/20/2018 by Mikerho
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Help in Identifying a Meteorite Revisited

01/19/2018
posted in General Discussion
by lyn
For those who may have quit following the above thread, the answer is below, as verified by the Arizona Museum of Natural History. Sedimentary dark L...
Views: 114, Comments: 13
Last comment 01/20/2018 by lyn
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Wire Up 220 Volt Variac

01/19/2018
posted in General Discussion
by NSS
Hello All, Need some wiring assistance here, Trying to wire up a 220 volt variac, I have done dozens of 110 volt versions, and it is simple. It;s i...
Views: 88, Comments: 11
Last comment 01/19/2018 by NSS
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Three-Phase Transformer or Transformer Bank

01/19/2018
posted in Electrical Engineering
by haysam
hi guys i work at substation 500/220 kvwe will buy new transformer 500/220 kv 500 MVAwe are compare between two offers one three phase transformer an...
Views: 85, Comments: 3
Last comment 01/19/2018 by haysam
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How to Remove Deformation in End of Aluminium Pipe?

01/19/2018
posted in General Discussion
by Tank Circuit
Anyone have an idea of a tool or device I could buy on eBay or somewhere that would enable me to remove the deformation in a number of pipes like the...
Views: 221, Comments: 28
Last comment 01/20/2018 by GW
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How To Create An Adjustable Co-Ordinate System in Abaqus?

01/19/2018
posted in General Discussion
by srimanishreddy
Hello all, I have created a solid shaft inside a solid shell and fixed the shell as a BC in the first step. In the second step, I have applied load on...
Views: 64, Comments: 4
Last comment 01/19/2018 by James Stewart
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Help Separating Broken Glass From a Picture

01/17/2018
posted in Chemical & Material Science
by lyn
We've got this framed 8X10 color glossy that was in storage for over 5 years, in a box apparently under some amount of weight. Somehow, the glass was...
Views: 445, Comments: 39
Last comment 01/20/2018 by thewildotter
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Upgrading A Hydraulic Powered Mini-Crane

01/15/2018
posted in Mechanical Engineering
by Stephen Archer
I am the Technical Partner for O’Michael Studios, Inc; we are steel sculpture fabrication company. I have a straight forward question that I nee...
Views: 380, Comments: 34
Last comment 01/20/2018 by SolarEagle
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Small-scale Metal Sculptures Using Silverware and Scrap

01/16/2018
posted in General Discussion
by BestInShow
Since a number of CR4 members share their artistic pursuits with us, I thought you'd be interested in this artist. I've seen various uses for silverwa...
Views: 284, Comments: 25
Last comment 01/18/2018 by James Stewart
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Amp Capacity of Extension Cords

01/17/2018
posted in Electrical Engineering
by ronseto
Extension cords list the maximum length of cord based on the size of wire used and the current draw. Is house wiring taken into account? There can be...
Views: 327, Comments: 23
Last comment 01/18/2018 by SolarEagle
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The High-tech Skin Care Aisle

01/20/2018 posted in The Engineer's Notebook
by M-ReeD
When I imagine the latest in electronic innovation being unveiled last week at the Consumer Electronics Show (CES) in Las Vegas, I didn’t exactl...
01/20/2018 Views: 26, Comments: 0
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Guess the Architecture for 1/16/2018

01/16/2018 posted in Guess the Architecture
by MaggieMc
This week's building submission is courtesy of SolarEagle. Are you able to identify this building?
01/16/2018 Views: 512, Comments: 69
Last comment 01/20/2018 by SolarEagle
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Woman of the Week – Florence Nightingale

01/16/2018 posted in WoW Blog (Woman of the Week)
by lmno24
Florence Nightingale was a social reformer, statistician and likely most known as the founder of modern nursing. Her work is going to be showcased in...
01/16/2018 Views: 197, Comments: 4
Last comment 01/17/2018 by James Stewart
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What to Ask Before Hiring A Surplus Inventory Liquidation Service

01/14/2018 posted in Material Handling & Supply Chain Technology
by ahorner_22
There are a lot of companies out there that offer surplus liquidation services. When hiring a service, there are three important questions to ask befo...
01/14/2018 Views: 329, Comments: 0
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Hitting the Facebook "Snooze" Button

01/13/2018 posted in The Engineer's Notebook
by M-ReeD
Find that you need a break from the nonsense that is Facebook? With its timely updates about what people are doing, not doing, eating, watching, think...
01/13/2018 Views: 211, Comments: 13
Last comment 01/18/2018 by James Stewart
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A Boy’s Dream: Experiencing GM’s Motorama in Person

01/11/2018 posted in Hemmings Motor News Blog
by dstrohl
I couldn’t believe my good luck. A junior-high friend invited me to join him and his father on a journey into New York City to see the 1956 Gen...
01/11/2018 Views: 164, Comments: 1
Last comment 01/12/2018 by phoenix911
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On the Donner Pass, the Lincoln Highway Once Forced Motorists Through an Active Train Tunnel

01/10/2018 posted in Hemmings Motor News Blog
by dstrohl
While the threat of having your fellow traveler cannibalize you had more or less passed for motorists crossing the Donner Pass in California, they had...
01/10/2018 Views: 272, Comments: 4
Last comment 01/17/2018 by PWSlack
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Guess the Architecture for 1/9/2018

01/09/2018 posted in Guess the Architecture
by MaggieMc
Once again, this week's building submission is courtesy of SolarEagle. Are you able to identify this building?
01/09/2018 Views: 476, Comments: 17
Last comment 01/17/2018 by Doorman
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Tucker Club Merges with AACA Museum; “Clubs are not what they used to be”

01/09/2018 posted in Hemmings Motor News Blog
by dstrohl
With just a fraction of its peak membership and dwindling engagement, The Tucker Automobile Club of America has reached an existential moment; the off...
01/09/2018 Views: 180, Comments: 8
Last comment 01/12/2018 by Kilowatt0
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Woman of the Week – Natasha Baker

01/08/2018 posted in WoW Blog (Woman of the Week)
by lmno24
I came across this article on our main site, Electronics 360, and thought this lady would be a good one to feature on CR4! We were able to interview N...
01/08/2018 Views: 258, Comments: 0
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Henry Ford’s X-8 Among Topics Covered by 2018 Gilmore Museum Lecture Series

01/08/2018 posted in Hemmings Motor News Blog
by dstrohl
One of Henry Ford’s odder inventions—and one that certainly challenges the notion he only ever wanted to build Model Ts into perpetuity&...
01/08/2018 Views: 210, Comments: 2
Last comment 01/09/2018 by Rixter
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Confusing the Flu for a Cold: A First Person Account

01/06/2018 posted in The Engineer's Notebook
by M-ReeD
At the end of November, I made the frustrating and painful mistake of treating a cold when really I had the flu. After receiving my religiously sched...
01/06/2018 Views: 401, Comments: 28
Last comment 01/16/2018 by artsmith
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Future of the 'Doomsday Planes'

01/04/2018 posted in Aerospace Blog
by HUSH
The E-4 aircraft is one of the most unique airplanes in the world. It serves in the U.S. Air Force's National Emergency Airborne Command Post, based a...
01/04/2018 Views: 829, Comments: 59
Last comment 01/15/2018 by phoenix911
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Guess the Architecture for 1/2/2018

01/02/2018 posted in Guess the Architecture
The first Guess the Architecture of the new year is courtesy of SolarEagle. Do you have any idea what building it might be?
01/02/2018 Views: 434, Comments: 20
Last comment 01/08/2018 by MaggieMc
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Fuddled Frequencies: Newsletter Challenge (January 2018)

12/31/2017 posted in Challenge Questions
This month's Challenge Question: Specs & Techs from GlobalSpec: Suppose your preferred AM radio station is located at 800 kHz on your radio dial,...
12/31/2017 Views: 1644, Comments: 164
Last comment 01/20/2018 by dkwarner
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