The AE911Truth Petition
To the Members of the House of Representatives and of the Senate of the United States of America,
PLEASE TAKE NOTICE THAT:
On Behalf of the People of the United States of America, the undersigned Architects and Engineers for 9/11 Truth and affiliates hereby petition for, and demand, a truly independent investigation with subpoena power in order to uncover the full truth surrounding the events of 9/11/01 – specifically the collapses of the World Trade Center Towers and Building 7. We believe there is sufficient doubt about the official story and therefore the 9/11 investigation must be re-opened and must include a full inquiry into the possible use of explosives that might have been the actual cause of the destruction of the World Trade Center Twin Towers and Building 7.
Featured Petition Signers
Samuel R. Glasser
Retired Petroleum Eng.
BS Petroleum Engineering, UC Berkeley CA, 1950
The 'politically correct' explanation for the building collapses is physically impossible. The most probable cause (~100%) is controlled demolition.
Samuel R. Glasser
BS Petroleum Engineering, UC Berkeley CA, 1950
Bishop, CA
Occupation: Retired Petroleum Eng.
I was a petroleum engineer for 25 years. Then I spent 10 years traveling and in other occupations. I have been a high school math teacher for 25 years and am still active.
The 'politically correct' explanation for the building collapses is physically impossible. The most probable cause (~100%) is controlled demolition.
Robert E. Mccoy, Architect
B Arch, UC Berkeley, 1963
Following the collapse, on September 12, 2001, I had a breakfast meeting with Tom McCasslin, then VP West Coast for Tishman Construction, and formerly the Project Engineer for…
Robert E. Mccoy, Architect
B Arch, UC Berkeley, 1963
La Canada, CA
Project Architect-Director for many high and low rise steel structures including the 34 story 1.7 Million SF Headquarters Building for Pacific Gas and Electric Company, San Francisco, 44 story Citicorp Building San Francisco, 44 story 575 Market street Building, San Francisco (A Standard Oil Company Headquarters Building), St. Mary's Hospital and Medical Center, San Francisco, and the 1 Million SF Tom Bradley International Terminal at LAX.
Following the collapse, on September 12, 2001, I had a breakfast meeting with Tom McCasslin, then VP West Coast for Tishman Construction, and formerly the Project Engineer for Building 7. This meeting was to have included the LA Building Dept Chief and the LA Fire Marshall, who for obvious reasons, could not attend. Neither Tom or I, after having watched the news stories of the event several times could understand how a fire would have caused that type of total and complete collapse. Now we know!
Philip W. Day, PE
BSCE, VA Tech
There are too many unanswered questions and holes in the official story.
Philip W. Day, PE
BSCE, VA Tech
Kirkland, WA
construction project manager for 25 years. Received my B.S.C.E. from Virginia Tech in 1981.
There are too many unanswered questions and holes in the official story.
Stacey Landrum, MA
Retired
MA
Treason committed at the highest levels.
Stacey Landrum, MA
MA
Jackson, TN
Occupation: Retired
Satellite Network Controller, US Army Space Command; Fiber Optic Engineer, MCI/Worldcom; Fireteam Leader, Infantry, USAR; Combat Medic, USAR; Company Nuclear/Biological/Chemical Non-Commissioned Officer, USAR; Business owner; County RNC Committeeman; RLC State Chairman
Treason committed at the highest levels.
Brandon Johnson, PE
BSME
To me, the evidence shown by Richard Gage in the DVD titled 9/11: Blueprint for Truth clearly shows that the public was not given the real story behind…
Brandon Johnson, PE
BSME
Minneapolis, MN
Mechanical engineer consulting for the public transportation industry - specifically the rail industry.
To me, the evidence shown by Richard Gage in the DVD titled 9/11: Blueprint for Truth clearly shows that the public was not given the real story behind why those buildings collapsed. You just can't ignore the evidence of molten steel, pulverized concrete, U shaped steel I-beams with no stress fractures, and signs of explosions (squibs) 40 stories below the collapsing rubble. The list of unanswered technical questions surrounding this tragedy is just too long to be ignored.
Jonathan H. Cole, PE
BS Civil Engineering, Univ CT
There is so much evidence that has yet to be debunked or explained by the official story. - - - - The initial antenna drop in WTC 1…
Jonathan H. Cole, PE
BS Civil Engineering, Univ CT
Englewood, FL
Professional Civil Engineer registered in CT. FL. and N.H., Graduated in 1979, over 28 years in civil engineering and construction management, including building, bridge, utility and infrastructure design.
There is so much evidence that has yet to be debunked or explained by the official story. - - - - The initial antenna drop in WTC 1 before the perimeter walls drop, accelerating into the path of most resistance, the concrete dust analysis and energy it took to make it, why the corners of the towers did not collapse at the same rate as the floors, the cut up core columns at ground zero, the lack of any photographic evidence whatsoever of any pancaked floors, the time it took to collapse, the energy needed to throw steel hundreds of feet, the squibs well below the collapse wave, and of course the collapse of WTC 7. - - - - Until such time that all this can be clearly explained without the use of explosives, I will throw my lot with fundamental laws of physics rather then the official story which defies those laws.
Larry Howe-Kerr, MS, BS
Social Responsibility Minister
BS Engineering, Mississippi State University, 1973
I believe all the official stories about what happened on 9/11, particularly with regard to the collapse of the three buildings, are patently false, evidenced by application of…
Larry Howe-Kerr, MS, BS
BS Engineering, Mississippi State University, 1973
Louisville, KY
Occupation: Social Responsibility Minister
B.S. in Materials Engineering, Mississippi State University. I was an industrial engineer with Ferson Optics, Bauch & Lomb, Ocean Springs, MS. I was also a metallurgist with Materials Evaluation Lab, Baton Rouge, LA, which specialized in failure analysis. I have a Masters in Student Personnel, Mississippi State University and a Masters in Theological Studies, St. Meinrad School of Theology. I served as the Director of the Office for Social Justice, Diocese of Pueblo. I'm currently a Social Responsibility Minister, Church of the Epiphany, Louisville, KY
I believe all the official stories about what happened on 9/11, particularly with regard to the collapse of the three buildings, are patently false, evidenced by application of the facts. I am appalled that the all the metal beams and other locations of metal, including molten metal, did not go through thorough metallurgical testing and failure analysis. Plane crashes and other accidents or failure events receive full analysis, with no stone left unturned. Here we have the largest metallurgical disaster/attack in our nation's history and the analysis and investigation has been woefully inept. We may never know fully what happened because much of the evidence was destroyed rather quickly after the event. With what I do know, it appears as if these buildings collapsed with the assistance of timed demolition. A thorough independent official investigation has not happened yet and must happen in order to glean as much truth about this major event as possible. The integrity of our nation depends upon this and the responsibility to our nation's citizens demands it.
William F. Hamilton
Retired
M.S. Computer Engineering, Northeastern University Graduate School of Engineering,1988
It's not hard to understand why the NIST concluded WTC7 collapsed because of fire. Any other conclusion'such as controlled demolition--would obviously be politically incorrect. So any member of…
William F. Hamilton
M.S. Computer Engineering, Northeastern University Graduate School of Engineering,1988
Greenville, SC
Occupation: Retired
BS Physics, Clemson University, SC. MS Electrical Engineering, Northeastern. Now retired, I worked 31 years, mostly doing computer system engineering and software development to support the operation of US military earth satellites.
It's not hard to understand why the NIST concluded WTC7 collapsed because of fire. Any other conclusion'such as controlled demolition--would obviously be politically incorrect. So any member of NIST who suggested such a possibility would be fired. I'm sympathetic. Those NIST guys needed to feed their families and pay their bills. Accordingly, they told their bosses what the bosses wanted to hear.
David C. Lasich, BS
BS Aerospace Engineering
The few videos I have seen and interviews I have heard were taken with much skepticism. However there are many troubling questions that I feel the 911 commission…
David C. Lasich, BS
BS Aerospace Engineering
Carmichael, CA
I received a B.S. in Aerospace Engineering in 1990 and have worked in the field of engineering for over 15 years. I also earned a secondary teaching credential and have taught math up to the high school level.
The few videos I have seen and interviews I have heard were taken with much skepticism. However there are many troubling questions that I feel the 911 commission did not answer. The most troubling to me is that the investigation was obviously not done in a completely objective and scientific way. Much evidence was neglected, and those on the panel most likely had prejudices to the findings.
Renato A. GonzñLez Loyola
Architect
ARCH Universidad der Mar, Vina del Mar, Chile, 2014
Programmed implosions and others facts accomplished with nanothermite technology.
Renato A. GonzñLez Loyola
ARCH Universidad der Mar, Vina del Mar, Chile, 2014
Talca, Chile
Occupation: Architect
I'm an architect, expert in 3D graphics and sustainable construction.
Programmed implosions and others facts accomplished with nanothermite technology.
Douglas Woolf
Structural Engineer
degreed & licensed
The collapse of WTC 7 looks suspicious.
Douglas Woolf
degreed & licensed
Chonhassen, MN
Occupation: Structural Engineer
I've been a licensed structural engineer in Minnesota for 20 years.
The collapse of WTC 7 looks suspicious.
Brenda L. Roach, RN
Medical Professional
AAS Nursing, TC3, Dryden NY
Watching 9/11 unfold on the TV that fateful day like so many others affected me deeply. The loss of life was so horrific it is no wonder it…
Brenda L. Roach, RN
AAS Nursing, TC3, Dryden NY
Athens, ME
Occupation: Medical Professional
Registered Nurse for 25 years, mother, wife and very concerned citizen.
Watching 9/11 unfold on the TV that fateful day like so many others affected me deeply. The loss of life was so horrific it is no wonder it took me 5 years before I was able to open my eyes to real information without all the emotion getting in the way. When I did, to my utter surprise, I found the video evidence did not match the official story. I think anyone with eyes to see, who takes the time to watch all 3 building collapses several times will see that they are not collapses at all, but explosions! Then, when you dig a little deeper, you find that every part of the 9/11 story has huge holes in it. As a citizen of this country I demand a true independent investigation (NO POLITICIANS OR INSIDERS) of what really happened on Sept. 11, 2001.
Petition Signatories
Michael S. Elliott
Bessemer City, NC
Occupation: Carpenter
Michael S. Elliott
Bessemer City, NC
Occupation: Carpenter
None of the events on 9/11 could have happened the way we were told they did. In the 40s a b-25 bomber crashed into the empire state building and did only local damage. The debris from the Twin Towers was rushed off and guarded.
Mary Jones
San Antonio, TX
Occupation: 911 Questioner
Mary Jones
San Antonio, TX
Occupation: 911 Questioner
I am a concerned citizen who believes that the government's explanation as to what happened on September 11th is a fabrication, half truth, deception and a lie.
Something does not add up. How can the buildings come down in free fall speed?
Doris Hallmark
Keyport, NJ
Occupation: American Citizen
Doris Hallmark
Keyport, NJ
Occupation: American Citizen
I am a concerned American citizen who wants to know how, why, and who were truly responsible for the deaths of 3,000 people on Sept. 11, 2001.
First investigation did not answer questions sufficiently. There are too many questions that remain unanswered to this day, ie. Why did the BBC announce that WTC 7 was falling 20 minutes before it fell? This had NOTHING to do with time difference between the two countries. Why was NORAD told to stand down? Why were certain people told not to fly that day?
Stephen R. Clevenger, Owner / Network
Rocklin, CA
Education: Degreed
Stephen R. Clevenger, Owner / Network
Degreed
Rocklin, CA
8 years Broadcast electrical engineer / 20 + years in Network Engineering
There are too many holes and questions about what happened and with the time line when the building fell and how they fell. There needs to be a more independent review of what happened here.
Caleb Rosenbalm, Sub-Contracted Inspector
North Vernon, IN
Occupation: Sub-Contracted Inspector
Education: student
Caleb Rosenbalm, Sub-Contracted Inspector
student
North Vernon, IN
Occupation: Sub-Contracted Inspector
My name is Caleb, I'm 21. I love cooking, video games, skating, movies, music, cars, my lady, my puppy King Xavier. I do inspections of homes and would like to move out of the U.S. someday unless the government can get their shit in order.
I believe that government officials and the Bush administration and the supposed terrorists they paid to bomb our towers are fully responsible for the tragedy of 9/11. Only hell has such places reserved for the people responsible.
Eric A. Johnston
Aurora, CO
Occupation: Cashier/Clerk
Eric A. Johnston
Aurora, CO
Occupation: Cashier/Clerk
I'm an Educated person with a sound mind that can understand the facts about 9/11. I feel with all my heart and soul looking at the evidence, that the official story has a lot of contradictions! It's either one way or the other.....we can't have It both ways!
Building 7 I think the smoking gun for conspiracy the way It came down! All the witness testimony's around the building's heard and gave statement that they heard loud explosion's that they believe were bombs located in the buildings. Rodriquez gave testimony that he heard a loud explosion in the basement seconds before the plane hit on the top!
Terry Grayson
Williston, FL
Occupation: House Husband
Terry Grayson
Williston, FL
Occupation: House Husband
I am not a professional. I am someone who has been exposed to enough contrary data to question the findings of the 9/11 Commission.
There is ample potential evidence that justifies opening a new investigation into the collapse of the two WTC towers and Building 7.
Samantha Temple
Newcastle Upon Tyne, Tyne & Wear, United Kingdom
Occupation: Office Worker
Samantha Temple
Newcastle Upon Tyne, Tyne & Wear, United Kingdom
Occupation: Office Worker
Just a mother, wife, sister and daughter who thinks we deserve the truth...
Too many professional people have questioned the circumstances of the collapse and too many reports have been publicized of the explosions heard before the collapse to ignore them. These need to be investigated further
Alex Chevyrev
Irondale, AL
Education: Degreed
Alex Chevyrev
Degreed
Irondale, AL
Degree on Mechanical Engineering.University of Lviv,Ukraine.20 years in USA,10 years as US citizen.
John Elton, Professional
Cedar Park, TX
Occupation: Business Professional
Education: Degreed
John Elton, Professional
Degreed
Cedar Park, TX
Occupation: Business Professional
Gold/Rare Coin Specialist - Numismatist. Have personally handled over $50 Million in transactions.
anyone that looks at the collapse of these buildings with an open mind can come to no other conclusion except that these buildings were brought down using controlled explosives. When building 7 fell, it was the 3rd steel framed building ever to collapse due to fire, the other two, were WTC 1 and WTC 2. We need an independent investigation, WITH SUBPOENA POWERS, and we need it now.
Skip Cook, Concerned Citizen
Little Rock, AR
Occupation: Mktg
Education: Degreed
Skip Cook, Concerned Citizen
Degreed
Little Rock, AR
Occupation: Mktg
Concerned Citizen. Don't have to be a rocket scientist to something is amiss.
Without a thorough principled investigation (unlike the 911 Commission) we will continue to cycle through suspicions.
Daric Foster
Cincinnati, OH
Occupation: Industrial Design
Education: student
Daric Foster
student
Cincinnati, OH
Occupation: Industrial Design
I am an industrial Designer and have spent the last 10 years working with various building materials and construction methods. building various models and prototypes.
I have reviewed every shred of evidence I can find for both theories. I can promise you that if we could build one of the twin towers and crash a plane into there is no way there it would have total collapse in the fashion that the twin towers did even if we could it wouldn't have recreated the total collapse with a 1,000,000 attempts. I still don't think anyone has been given a valid reason for the violent and complete and total structural collapse.
Paul F. Maiorana
Howard Beach, NY
Occupation: History and Political Science
Education: Political Science and History BA
Paul F. Maiorana
Political Science and History BA
Howard Beach, NY
Occupation: History and Political Science
A concerned citizen who believes that 9/11 was a setup to create the Department of Homeland Security which watches over Americans and tries to limit their civil liberties. It also helped advance the military-industrial complex while allowing the government to take control of Middle Eastern oil.I believe the collapses were designed to fall based on demolition. The towers were made to withstand airplane hits due to their height. Also WTC Building 7 looks like it was definitely destroyed by demolition. There is a report where it's mentioned to fall but it's still standing.
Montana S. Hendrix
Elmendorf Afb, AK
Education: student
Montana S. Hendrix
student
Elmendorf Afb, AK
Aircraft Sheet Metal Specialist. Working on a degree in aircraft structural maintenance, 3 years in the military.
I think that all of the things i have seen and researched are absolute proof that this was a planned demolition.
David C. Mclean, Concerned Sovere
Stayner, ON, Canada
Occupation: Commercial Drywall Installer
David C. Mclean, Concerned Sovere
Stayner, ON, Canada
Occupation: Commercial Drywall Installer
High school only. A construction Drywall installer, Commercial buildings etc.
If perhaps one building fell that day, 2001/09/11 , I probably would not even question this act. Thanks to AE911Truth for pointing out the Evidence of a demolition(s). I believe that now is the time for the people to unite and ask (DEMAND) answers to important questions. Our future depends on this.
Barbara Finger, MA
San Antonio, TX
Occupation: Ciizen
Education: Assoc.
Barbara Finger, MA
Assoc.
San Antonio, TX
Occupation: Ciizen
I am a concerned, disabled voting citizen. I have a son in the U.S. Army is home from his second deployment to Iraq. I worry that he will go to Afghanistan next. I also advocate for those in recovery from opiate addiction using medicated assisted. I sit on the board of the National Alliance for Medicated Assisted Recovery (NAMA) and am head of the Texas Chapter (TexNAMA).
I have always had doubts about how and why the buildings collapsed the way they did. I have no real faith in the governments answers to these questions.
Philip Duchard
Auckland, Auckland, New Zealand
Occupation: Graphic Communication
Education: Trade Cert in Photolithography and prepr
Philip Duchard
Trade Cert in Photolithography and prepr
Auckland, Auckland, New Zealand
Occupation: Graphic Communication
I am a self employed freelance graphic artist in New Zealand trained in photolithography and pre-press.
After looking and listening to the statements made and questions raised by seemingly credible professional people there are too many things that just don't seem right. I felt on the day that sheer speed the buildings came down was just too fast.
David P. Bumgardner, DVM
Muncy, PA
Occupation: Veterinary Medicine
Education: DVM
David P. Bumgardner, DVM
DVM
Muncy, PA
Occupation: Veterinary Medicine
I am a 1980 graduate of Auburn University school of Veterinary Medicine. I was graduated with high honors and have owned my own practice since 1984.
Even as one not trained in architecture or engineering, it is fairly self evident that a building that collapsed due to being struck by a large object ( airplane ) then subsequently collapsing in such a perfect fashion would be a near impossibility . In addition, it is my understanding that the building supervisor had stated that these buildings were slated for demolition and that this statement has never been recanted.
Christopher A. Mayeaux
Baker, LA
Occupation: Craftsman
Christopher A. Mayeaux
Baker, LA
Occupation: Craftsman
I have been in the construction industry as an electrician for 14 years. After watching 'Blueprint for Truth' on YouTube and my own experience, I KNOW there is something being hidden by our 'government'.
Jet fuel would never burn hot enough to create the molten metal shown on several videos. Any building that falls at free fall speed, with evidence of concrete vaporization, and no pancaking of floors was obviously demolished. The everyday 'Joe Q. Public' lacks basic problem solving skills and common sense to see the obvious. They are very happy to watch TV news and eat up every word...
Sharon Jones, MA
San Francisco, CA
Occupation: Retired
Education: Masters in English
Sharon Jones, MA
Masters in English
San Francisco, CA
Occupation: Retired
i am a former teacher and retired legal secretary. I do not for one moment believe the official story of what happened on 9-11 and want America to become the democracy it was supposed to be.
It is OBVIOUS that the collapse was achieved by a series of detonations, and did NOT result from the buildings being hit by a plane, with the exception of the Pentagon which was clearly hit by a missile--not a plane. I want to know who ordered this and who carried it out, for what reason, as well as the reason the American people were deliberately deceived about it and have even now been denied a legitimate investigation of what happened, who was involved, and what their motives were for murdering all of these people and blaming their deaths on others...
Martin Simonfy, BA
Sebastopol, CA
Occupation: Residential Construction
Education: BA Social Science
Martin Simonfy, BA
BA Social Science
Sebastopol, CA
Occupation: Residential Construction
I been educated by the evidence of video footage, awareness of basic structural science and awareness of the elementary laws of physics.
I am aware that due to the laws of physics, the 9/11 building collapses could not possibly have been caused by the airliners which crashed into them nor by the fires which were caused by that crashing.
Jaydeep D. Samant, Student
Bombay, Maharashtra, India
Occupation: Student
Education: student
Jaydeep D. Samant, Student
student
Bombay, Maharashtra, India
Occupation: Student
Student in the 12th grade. I live in Bombay. Saw your website on Google and signed up. Nice work although. Hope that more people sign up for your site
Student in the 12th grade.i live in bombay.saw ur website on google nd signed up.nice work although.hope that more ppl sign up to ya site
Bryan Bourgeois, Mech.Eng
Underhill, VT
Education: BS Industrial Design, U of Bridgeport
Bryan Bourgeois, Mech.Eng
BS Industrial Design, U of Bridgeport
Underhill, VT
Mechanical Engineer with wide general experience, serving clients in many industries, offering development and project management services.
The omissions and misrepresentations in official reports and media point convincingly toward a cover-up. The unwillingness of government officials to thoroughly investigate open questions and contradictory explanations is evidence of treason.
Elizabeth A. Williams, Library Assistant
Fulton, MO
Occupation: Education
Education: student
Elizabeth A. Williams, Library Assistant
student
Fulton, MO
Occupation: Education
I have grown up in Missouri, I am currently attending college and will graduate next year. I plan to go on and get a Master's degree in library science and settle in the south after graduation.
I am most concerned about building 7, a 47-story building that just free falls for no reason. How is this possible without a controlled demolition taking place.
Albert W. Bowdish, Reverend
Tahlequah, OK
Occupation: Retired Missionary
Albert W. Bowdish, Reverend
Tahlequah, OK
Occupation: Retired Missionary
Education- Two years college ; Three years Bible School ; 37 years as missionary in India 1951 to 1988
I increasingly feel that the official Report does not satisfactorily explain many, many things about the entire happening of 9/11
Benjamin A. Westrum
Tahlequah, OK
Occupation: Heavy Equipment
Benjamin A. Westrum
Tahlequah, OK
Occupation: Heavy Equipment
I am high school graduate. I am licensed heavy equipment operator and hold a CDL license.
I have grave doubts about the Official Story. And would like to see a reinvestigation of what happened on 9/11.
Rick Aiello
Bridgeport, CT
Occupation: Technical Communications
Education: Degreed
Rick Aiello
Degreed
Bridgeport, CT
Occupation: Technical Communications
Student of government oppression and the Constitution.
I have no doubt the attacks were staged by black operatives working for globalist interests within and outside of government.
Chris A. Merchant
Boca Raton, FL
Occupation: Photography
Chris A. Merchant
Boca Raton, FL
Occupation: Photography
No engineering or architectural background, just a well-informed and concerned citizen.
There is far too much information available that raises many grave questions about the truth of what transpired on 9/11/01 in New York City. That most of that vital information should be ignored by the 911 Commission should alert one to the veils of deception which surround these events and the overwhelming stench of cover-up. The data that has been released by Dr. Steven Jones and others by means of scientifically sound research deserves to be considered by a body of individuals who hold the power of prosecution. Also, the education of the American people as to these scientific findings is crucial to the survival of any semblance of a government of the People, by the People, and for the People.
Karena Myers
Milford, PA
Occupation: Social Sciences
Education: Degreed
Karena Myers
Degreed
Milford, PA
Occupation: Social Sciences
Peace activist and interested in a world free of war and the military industrial complex. There are better ways to use the lives of people.
Learning about improbabilities associated with the destruction of the buildings on 9/11.
Ross Currie
Melbourne, VIC, Australia
Occupation: Finance/Investment
Education: Bachelor of Business
Ross Currie
Bachelor of Business
Melbourne, VIC, Australia
Occupation: Finance/Investment
Tarra B. Randazzo, Electrician
Henderson, NV
Occupation: Electrician
Tarra B. Randazzo, Electrician
Henderson, NV
Occupation: Electrician
I am a native NYer and am floored by the wool being pulled over our eyes!!!! WE NEED A NEW INVESTIGATION NOW!!!!
If a child can understand what we are being told is garbage then we are in sad shape, my 11yr old can tell you that the official story is a hoax!!!
Miguel Herrera
Austin, TX
Occupation: Spiritualist
Education: Commercial Music Management
Miguel Herrera
Commercial Music Management
Austin, TX
Occupation: Spiritualist
Stefan Price
Oslo, Norway, Norway
Occupation: Formwork Carpenter
Stefan Price
Oslo, Norway, Norway
Occupation: Formwork Carpenter
I am a Form-work Carpenter with over 11 years experience in steel reinforced concrete construction , including commercial buildings .
Just looking at the footage of the first tower that collapsed , you can see it should have continued tipping over, not right on itself and follow the path of greatest resistance . As a Form-worker I am used to visualizing structural load paths , an Engineer can do the calculations .