Include SAWE in your Career Development and Goals

SAWE Blog - Thu, 2018-10-18 14:53

The SAWE provides many valuable technical resources to the mass properties community worldwide. This is a result of many years of participation, volunteerism, and corporate support. You have the opportunity to harvest information from these resources. You also have the opportunity to contribute by either adding technical content, development of standards, or actively supporting the SAWE organization’s committees, projects, and officers.
There are many career development opportunities within the SAWE’s activities. Some are technical, some administrative, and all of them build working relationships within an international infrastructure of the mass properties community that isn’t available anywhere else.
As you set your career goals each year, include opportunities within SAWE as an unrestricted avenue to extend your development technically, professionally, and as a leader.

Categories: SAWE Blog

SAWE Announces Peer Review Policy

SAWE Blog - Wed, 2018-10-17 12:00

The SAWE Board of Directors has approved a policy creating a Peer Review Committee (PRC) consisting of Subject Matter Experts within the SAWE who will review all technical Products prior to publication.  This committee has been formed in order to bring the SAWE in line with other organizations that ensure that Products published by the SAWE are technically accurate and useable by both our members and others who may access our Products.

The PRC is charged with reviewing papers, articles, Standards, and Practices, Handbooks, and Textbooks that the SAWE distributes for technical accuracy in logic, equations and calculations.  Any problems with these will be referred back to authors for reconciliation before approval for publication is issued. The Committee is primarily reviewing submissions for technical content accuracy, not for editorial problems such as misspellings or grammatical errors.  Guidelines for the committee are complete and distributed to committee members. The committee is checking submissions for inaccuracies in five (5) different categories. The first three categories define problems that must be reconciled before publication. The last two are essentially courtesy checks that reveal problems that are not technical in nature and will not result in mandatory reconciliation before publication approval is attained.

Category 1 (Equation Problems) checks submissions for inconsistencies within equations and incorrect equations.

Category 2 (Premise Problems) ensures that a submission supports any premises, plausibility and completeness of any examples, and for consistency between the stated objective and the conclusions drawn.

Category 3 (Logic Problems) checks submissions for illogical statements or references.

Submissions with Category 1, 2, or 3 difficulties will be returned to the author(s) with suggested remedies for reconciliation.  The revised products can then be resubmitted for review. Any Category 1, 2, and 3 difficulties must be resolved before publication approval will be issued.

The following two categories are general submission difficulties that are not technical in nature and will not be reasons for publication disapproval.  However, author(s) may choose to fix the errors before final acceptance for publication.

Category 4 (General Typos) are typographical errors spotted by the PRC which should be addressed.

Category 5 (Communication Clarity) The PRC can offer help in such areas as verb-subject agreement, run-on sentences, and use of colloquialisms.  The purpose here is to aid the author in increasing reader’s understanding of the submission. Authors may choose to ignore this advice.

Many companies already subject prospective Products to internal peer review, which is a positive that undoubtedly captures many of the impediments to publication that the PRC might catch.  In essence, the Peer Review Committee is but a final check by a panel of Subject Matter Experts and should be a welcome addition to the mass properties community.

The PRC is obligated to respond to submissions within one week (seven days) of receipt of a submission, with either constructive comments or approval as written.  The chairman of the Peer Review Committee has committed to respond to authors within the stated week whether or not a submission meets the Guidelines for publication, and if not, what actions must be pursued in order for a submission to be accepted for publication by the SAWE.  It is not the intention of the SAWE to prevent publication, nor impede the rate at which submissions are accepted, but to ensure that the SAWE is held in the high regard which the SAWE deserves.


Robert Zimmerman

SAWE Vice President – Technical Director

Categories: SAWE Blog

SAWE Ground Vehicle RP G-1:2018 Draft Available for Public Review

SAWE Blog - Mon, 2018-10-08 06:54

The Ground Vehicle Committee is requesting the help of the SAWE membership at large to review their Recommended Practice G-1:2018 “Mass Properties Control for Ground Vehicles”. This recommended practice was approved by the GV Committee at the International Conference in May, and is available for public review in the Standard Public Review forum at this link:

Comments and inputs, corrections, clarifications and such from the experts in the mass properties field will help to make this document a top quality publication from SAWE and enhance the high standard our communities’ recommended practices already achieve.

Thanks for your assistance!

Categories: SAWE Blog

Welcome to the SAWE – Presentation

SAWE Blog - Thu, 2018-10-04 09:21

Have you ever wanted more information to take to your management to support your Weight Engineering endeavors? Would you like to learn more about our society as it stands today?

Well Thanks to Mr. Damian Yanez of Gulfstream Aerospace Corporation, your wishes are now at your fingertips.

Navigate to

and learn more. Use it to further your career, make a case for training, conference attendance, developing technical content, and even securing your company as a SAWE Corporate Partner.

Categories: SAWE Blog

SAWE Weight Engineer’s Handbook

SAWE Blog - Wed, 2018-09-26 06:46

The SAWE Weight Engineer’s Handbook, is being completely reformatted and revised by a dedicated group of Gulfstream Mass Properties Engineers.  The committee is looking for your input about things to add, and any corrections or improvements that you may have to offer.  For example, the Houston Chapter is working on a completely new section for the Offshore Industry, with help from members in the Canadian Chapter and the UK.  Please contact Damian Yanexz ( or Andy Schuster at ( )with your thoughts.

The project plan is to have a Working Draft done by the middle of December, and a Committee Draft done by the middle of February.  The Committee Draft will receive a peer review by the VP Technical Director’s team, and a functionality review by SAWE’s Corporate Steering Council (made up of SAWE Inc officers and Corporate Partners).  The committee has a MS Word template available for any material that you would like to contribute.

If you would like to help the committee reformat the existing handbook into the new format, please contact Damian at the email above so he can get you started.

The society is very appreciative of this monumental effort by the Gulfstream team.  Many of the tables, figures and data were published in the 1940 edition. (you can find a copy in some libraries such as Seattle’s main public library).  This conversion will help us to use modern software tools to make the information more accessible.

Categories: SAWE Blog

Rescheduled 2018 Hampton Roads Regional Conference

SAWE Blog - Tue, 2018-09-25 08:32

As many of you may or may not be aware, the Regional Conference that was supposed to occur the 13th-15th of this month was forced to be rescheduled due to Hurricane Florence.

As of Friday, the Society of Allied Engineer’s Regional Conference in Norfolk, Virginia has officially been rescheduled to November 29, 30, and December 1sth.  With the assistance of D. Jay Feldman, we have established an addendum to our original contract that will result in no financial penalties to  the SAWE, honor all existing agreements with the hotel, and provide all the same outstanding rooms and support that were planned for the September timeframe that was interrupted by Hurricane Florence.  The other alternative date we were originally hoping for was not possible due to  the hotel not being able to provide some critical meeting spaces.  As you might expect there were several other groups competing for their spaces, not to mention the other groups that had already booked conference spaces.   Our host chapter will now be busy confirming speaker availability,  vendor participation, and determining details of how to handle hotel room reservations, etc.  They will be informing everyone of those details in the near future.

Our Co-Chairwomen and all involved in the preparation for this conference hope that the new dates are acceptable to all.  While the weather may be a bit cooler, there is very little chance of another hurricane affecting our plans.  Special thanks to D.Jay Feldman for his valuable assistance in negotiating with the hotel to get favorable terms and availabilities.  For those who don’t know, D. Jay has been involved in setting up our meeting contracts for every Regional and International conference as far back as I can remember.  His support is critical to our holding successful SAWE conferences.

To be kept up to date on information regarding the rescheduled Regional Conference, please check the blog as updates will be posted to here.  You can find up to date information also on the Regional Conference website

You might be asking yourself, if I couldn’t go to the original Regional Conference, can I go to this one, and the answer is yes.  Check out the website for information and contact the Co-Chairwomen with any questions!

Thank you, and we in the Hampton Roads Chapter look forward to seeing you in Norfolk November 29, 30 and December 1st,

Categories: SAWE Blog

Registration Deadline – 2018 Hampton Roads Coastal Virginia Regional Conference

SAWE Blog - Thu, 2018-08-30 09:53

Dear SAWE Members,

With the summer’s end fast approaching, so too does the 2018 Hampton Roads Coastal Virginia Regional Conference and Planning Meeting on Mass Properties Engineering.  I wanted to remind as many as I could that registration is available through the SAWE website here and more importantly, the deadline for registering is September 6th, to ensure that we plan accordingly with the hotel for all those in attendance.  The conference is being held on Friday, September 14th at the Hilton Norfolk, “The Main”, in downtown Norfolk, VA with training on Saturday, September 15th.

Exhibitors and Sponsors:

5 Exhibitors (Intercomp, HII, ShipWeight, Altair, The Scale People)

2 Silver Sponsors (Aerospace Corp – exhibiting, Space Electronics)

2 Break Sponsors (Intercomp, GEC)

Technical Conference – Friday, September 14th

We have scheduled a full day of technical presentations.  This will include the Executive VP of Engineering at Liebherr, Bryant Ward, giving a presentation titled  “Designing the World’s Largest Mining Truck,” which I think will be a real treat for all of us as they are assembled locally in Hampton Roads.  Also, our lunchtime speaker is Jeanne Willoz-Egnor, the Director of Collections at the Mariner’s Museum in Newport News, dubbed America’s Maritime Museum by Congress, giving a presentation titled “The Technology of the America’s Cup.  The actual vehicle used in the 2013 race where America came back from being down as much as 8-1 is on display at the museum and worth a visit if you have time.

Training – Saturday, September 15th

We have scheduled three training opportunities for the conference to include a class on Developing Basic Parametric Methods, which pertains to all of our industries, a new class titled Introduction to Marine Weight Engineering for Non-Naval Architects, and finally, Marine Systems Weight Estimating Methods based on SAWE RP-14.  Registration for training is available through the registration process.  Please see the conference website and the August 7th blog post for more details.  If you are attending the conference, these are great opportunities to take advantage of while you are already here!

As always, these conferences are a great opportunity to continue our involvement with the SAWE, stay connected on mass properties engineering related topics, exhibit our products and services, provide support through sponsorship, attend training, and visit a new location to take advantage of all the area has to offer.

I sincerely hope to see as many of you there as possible and the Hampton Roads Chapter Host Committee is standing by to support you!

David S. Cash – Hampton Roads Chapter President

Categories: SAWE Blog

Orion Spacecraft Testing Coverage

SAWE Blog - Tue, 2018-08-21 06:47

The Orion spacecraft recently underwent mass properties verification in Houston in preparation for the second Launch Abort System test.  NASA Langley Research Center was intimately involved and LaRC engineers Amanda Cutright and Anjie Emmett were on hand for the operations.

Here is a video clip of Anjie and Amanda explaining the testing:

Knowing the mass and the CG of the Orion spacecraft is a safety of flight issue.  The AA-2 (Ascent Abort – [test] Two) test flight will test the Launch Abort System during the critical boost phase of the Space Launch System.  The LAS must safely remove the Orion capsule with its crew away from a failing booster if there is a launch mishap. The earlier PA-1 (Pad Abort – [test] One) test performed a similar function, but from a stationary simulated launch pad.  The AA-2 capsule is an actual Orion Command Module, instrumented and mass simulated for this test. The fixture seen in the videos was built to enable multiple weight and CG measurements to be made in multiple orientations and is reusable on subsequent Orion vehicles.

The Houston Chronicle also posted an article on the verification test at:

Amanda and Anjie traveled to Johnson Space Center in Houston for the testing.   They are seen in the background of the video above.

The Norfolk, VA area newspaper The Daily Press also ran a story about the testing:

Both Amanda Cutright and Anjie Emmet are members of the Hampton Roads Chapter of the SAWE.  Amanda is co-chair of the upcoming 78th International Conference on Mass Properties Engineering in Norfolk, VA  from May 18 – 23, 2019.


Robert Zimmerman

SAWE Vice President – Technical Director

Categories: SAWE Blog

The Benefits of ANSI Membership to the SAWE Society, Corporate, and Individual Members

SAWE Blog - Mon, 2018-08-20 07:09

The SAWE has been a member of the American National Standards Institute (ANSI) since 2012, and an accredited Standards Developing Organization (SDO) since 2014. We are proud of this role and our association with 285 other SDO’s in the United States. We also do not do this to avoid responsibility as an International standards developer, but to enhance that as well. SAWE is legally incorporated in the United States and so to participate in International, ISO, sanctioned standards development work, it does so as an SDO for the United States’ sole member to ISO, which is ANSI. But all SAWE work thru ANSI is open to full participation by members and corporations from any country. Through this process we develop ANSI/SAWE STD documents with full international participation in our voluntary consensus manner. We also develop Recommended Practices, SAWE RP’s, in an open consensus manner which is fully accessible and in cooperation with our International Membership.

 Benefits for belonging to SAWE with the above focus are manifest at several levels. First, as SAWE has a long tradition of doing, the work brings together technical and programmatic insights from the best Mass Properties Engineers in the world. It is motivational to know that the work ongoing within SAWE can have US and International impact to products from under the sea to outside our solar system. As an individual, participation in ANSI process brings recognition as someone who cares about defining and improving the world of Mass Properties Engineering. Our corporate members are key to providing the resources and strategic guidance the SAWE uses in creating new standards and assuring existing standards are up to date and relevant to modern acquisition programs and product operational needs. Corporate membership gives our sponsors insight into the issues of currency in Mass Properties Engineering, and SAWE activities are vitalized by receiving such guidance. Secondly, for our corporate support the American National Standards Institute wants you to know that “Standards Boost Business” ( ) Millions of dollars are saved thru implementation of standard practices, business is provided assurances in product quality across corporate and regional borders. Engineering artifacts, technical and managerial in nature, may be contractually assured to merge more easily between buyer / supplier relationships.

Recently ANSI organized a meeting with some current Captains of Industry regarding an “Executive Roundtable on Strategic Standardization and Competitiveness”. Based on past meetings between U.S. Secretary of Commerce Wilbur Ross and ANSI President S. Joe Bhatia, the issue of “Underinvestment in Standards” was the basis for this recent roundtable activity. These meetings called for “… sustained investment in terms of funding, manpower, and participation by both the public and private sectors to make that leadership possible”.  SAWE corporate and individual membership provides a direct path for such an investment opportunity and for fulfilling leadership roles in the field of Mass Properties Engineering.

 The role of SAWE thru its ANSI membership and our associated International standards development goals is a proud and growing opportunity for the Society. We encourage you as members, corporations, government organizations, product suppliers and product users to share in our eagerness to define this International journey in the future of Mass Properties Engineering.

Jeff Cerro

Categories: SAWE Blog

SAWE Survey results

SAWE Blog - Sun, 2018-08-12 23:13

Dear Mass Properties Engineering Industry participants,

The SAWE recently conducted an industry survey with the ultimate objective of stimulating increased collaboration between Academia, SAWE Company Members and Corporate Partners, society members, and the SAWE Executive Board toward a common objective of addressing the current risks and opportunities.

A link to the summarized results will be sent to you via email.

Please use this forum to discuss the results and the direction of our society.

Paper 3699 “The Health of Mass Properties Engineering in Aerospace, Marine, Offshore, Land Vehicles, and Allied Industries – Results of a 2018 Industry Survey” with the detailed results can be downloaded from the SAWE document ordering and downloading database at

Please take the initiative to proactively participate in our Society of Allied Weight Engineers resulting in the betterment of our World through open collaboration.


Clint Stephenson
SAWE Executive Vice President

Categories: SAWE Blog

Training Available at Regional Conference in September

SAWE Blog - Tue, 2018-08-07 05:59

The Hampton Roads Chapter of the SAWE is pleased to offer some exciting opportunities for training at this fall’s Regional Conference in Norfolk, Virginia!

Three classes will be offered on Saturday, September 15:

Developing Basic Parametric Methods:  In this full day class, Andy Walker describes how to parametrically and statistically estimate the weight of a complex vehicle, allowing for an estimate when little is known about the vehicle, particularly useful early in the design process.

Introduction for Marine Weight Engineering for Non-Naval Architects: In this brand new, half day course taught by former NAVSEA Technical Warrant Holder Dominic Cimino, participants will obtain a basic understanding of the weight engineering process relative to marine vehicles and consider the effects of buoyancy, wind, and sea conditions.  The course will also include a discussion of some basic naval architecture principles and an overview of how mass properties in the marine industry are different from those in the allied industries.

Marine System Weight Estimate Methods based on SAWE Recommended Practice 14:  This half day class, delivered by Andy Schuster, builds nicely on Cimino’s introductory course.  It covers the fundamental and practical methods of estimating the weight for marine systems, includes practical examples, and an exercise where students will develop a weight estimate for a 200 ft ship.  A complimentary copy of SAWE RP 14 for review is provided to all who register for the course.

Space is limited, so sign up today at  For additional information about the Hampton Roads Regional Conference, check out the website at

Categories: SAWE Blog

Remembering SAWE Fellow Al Tilley

SAWE Blog - Wed, 2018-07-25 11:27

From Al Tilley’s daughter Lynn: 

 I afraid I have sad news to share with you.  Dad passed away in the early hours of July 13th.  His heart and replaced valve began to fail and he was not a candidate for invasive measures given his overall condition.  

 His obituary can be found here:, the service has already been held.


This message was sent to Glen Matthews and forwarded to me by Kevin Tharp

Al Tilley was an SAWE Fellow associated with the San Francisco Chapter.  I will attempt to find someone to write an article for the Fall Journal.

Ron Fox

Executive Director

Categories: SAWE Blog

2018 Hampton Roads Coastal Virginia Regional Conference – Registration is Open

SAWE Blog - Mon, 2018-07-23 15:29

Dear SAWE Members,

As the President of the Hampton Roads Chapter, it is my pleasure to announce that our 2018 Hampton Roads Coastal Virginia Regional Conference and Planning Meeting on Mass Properties Engineering is officially open for registration through the SAWE website hereThe deadline for registering is September 6th, to ensure that we plan accordingly with the hotel for all those in attendance.

The conference is being held Thursday, Sept. 13th – Saturday, Sept. 15th at the Hilton Norfolk, “The Main”, in downtown Norfolk, VA.  The reduced rate for the hotel is guaranteed through August 22nd and reservations can be made either through a link provided at the end of your registration or via the conference website here.  I encourage you to visit the conference website to learn about the latest information for the conference.  “The Main” is downtown Norfolk’s newest and most modern hotel and we look forward to you all taking advantage of all that it has to offer and for enjoying all the local attractions that Norfolk and the surrounding area has to offer outside of the conference.

We have scheduled three training opportunities for the conference to include a class on Developing Basic Parametric Methods, which pertains to all of our industries, a new class titled Introduction to Marine Weight Engineering for Non-Naval Architects, and finally, Marine Systems Weight Estimating Methods based on SAWE RP-14.  Registration for training is available through the registration process.

We are actively seeking Authors and Presenters to continue to fill up our technical session and are working to secure a speaker for the technical lunch on Friday, Sept. 14th through the local Mariner’s Museum, dubbed America’s Maritime Museum by Congress, on the subject of the America’s Cup AC50 Wing Sail Racing Yachts.  The museum has an exhibit on display and we believe the topic speaks to all of our industries on the importance of mass properties in vehicle design.

We are also actively seeking Exhibitors and Sponsors for the event through the conference website to provide support for the conference and to showcase your products and services to others in the mass properties engineering industry.  Registration as a sponsor and/or exhibitor is available through the registration process.

As always, these conferences are a great opportunity to continue our involvement with the SAWE, stay connected on mass properties engineering related topics, exhibit our products and services, provide support through sponsorship, attend training, and visit a new location to take advantage of all the area has to offer.

I sincerely hope to see you all there and the Hampton Roads Chapter Host Committee is standing by to support you however we can as we invite you to our Regional Conference!

David S. Cash – Hampton Roads Chapter President

Categories: SAWE Blog