Search found 1307 matches

by MSI
Thu Jul 29, 2021 3:42 pm
Forum: SMAC/Collision Simulation
Topic: msmac3D Now Uses Vehicle Shape, Not Rectangles
Replies: 3
Views: 293

Re: msmac3D Now Uses Vehicle Shape, Not Rectangles

July 29, 2021: Update to Polygon Couple changes to the option to use the polygon periphery for the collision partners. We added veh3 to also have a polygon periphery We added the option to turn off the polygon periphery definition set field 9 of input card 13 to < 1 (for veh1/Veh2 collision interact...
by MSI
Wed Jul 28, 2021 2:35 pm
Forum: Vehicle Safety
Topic: Ralph Nadar & The Last Battle over Big Business
Replies: 0
Views: 11

Ralph Nadar & The Last Battle over Big Business

Interesting book review by Nicholas Lemann in the New Yorker on Ralph Nadar and big business. The Book reviewed is Kenneth Whyte’s “ The Sack of Detroit: General Motors and the End of American Enterprise ” (Knopf) The review was titled: Regulate This GM, Ralph Nadar and the debate over big governmen...
by MSI
Tue Jul 27, 2021 3:32 pm
Forum: Vehicle Safety
Topic: Child Safety Seats from back in the day
Replies: 1
Views: 41

Re: Child Safety Seats from back in the day

added more information on Stan's background
by MSI
Tue Jul 27, 2021 10:58 am
Forum: McHenry News!
Topic: Chappaquiddick, 51 years ago, 40 years since McHenry Reconstruction
Replies: 2
Views: 745

Re: Chappaquiddick, 51 years ago, 40 years since McHenry Reconstruction

July 22, 2021 article in People magazine
a People Exclusive
What Happened to the Bridge Where Ted Kennedy Crashed and a Woman Died

Chappaquiddick Bridge.jpg
Chappaquiddick Bridge.jpg (81.56 KiB) Viewed 10 times
also found other photos online
Chappaquiddick Bridge4.jpg
Chappaquiddick Bridge4.jpg (38.32 KiB) Viewed 9 times
Chappaquiddick Bridge3.jpg
Chappaquiddick Bridge3.jpg (45.67 KiB) Viewed 9 times
Chappaquiddick Bridge2jpg.jpg
Chappaquiddick Bridge2jpg.jpg (62.75 KiB) Viewed 9 times
by MSI
Mon Jul 26, 2021 9:07 pm
Forum: Vehicle Safety
Topic: Child Safety Seats from back in the day
Replies: 1
Views: 41

Child Safety Seats from back in the day

See these old ads posted up on forums etc and just have to share I see these and share with my brother Stan McHenry (* see below) who's currently teaching the National CPS Certification Training Course about modern day child safety seats! We've come a long way babies! Early Baby Car seats.jpg safe b...
by MSI
Sat Jul 24, 2021 10:39 am
Forum: msmac3D Licensee Notes
Topic: HOWTO Calculate CRASH3 A & B Coefficients, AKV (for SMAC)
Replies: 0
Views: 19

HOWTO Calculate CRASH3 A & B Coefficients, AKV (for SMAC)

This is a very preliminary writeup In the tools menu of msmac3D we have the Lsqfit - A&B Coefficient Calculator (same program as discussed below) and we have now added a link to it to the Ver 3.3 3DGraphics HELP Button with a direct link to the NHTSA CASH Test database lsqfit and crash test dat...
by MSI
Wed Jul 14, 2021 2:28 pm
Forum: General Reconstruction Analysis
Topic: What is the preferred Pole/Tree Collision analysis method?
Replies: 5
Views: 7576

Re: What is the preferred Pole/Tree Collision analysis method?

Transferring some older VHS tapes to digital so note some parts are not clear Uploaded a collection of 7 full scale side impact tests https://youtu.be/cFsvnHyFIC8 summarized by chart below: Summary of 7 NHTSA test.png You can access the test data at the NHTSA Crash test database, here's a link to AL...
by MSI
Mon Jul 12, 2021 10:32 pm
Forum: General Reconstruction Analysis
Topic: Princess Diana Crash Reconstruction
Replies: 8
Views: 7418

Re: Princess Diana Crash Reconstruction

Added to initial thread some subject specific links to the 48 Hours video For task specific portions of the video see the following links: | Time on Video | Link to place in Video on Topic | | :---------------: | :---------------- | | @0:30 | Dan Rather Introduction | | @0:76 | Start of Brian McHenr...
by MSI
Mon Jul 12, 2021 8:37 pm
Forum: General Reconstruction Analysis
Topic: Recommendations for software and hardware for crash reconstruction
Replies: 0
Views: 8

Recommendations for software and hardware for crash reconstruction

Q: On a Facebook forum someone posted that their department is currently creating an crash investigation/ recon unit and they were asked to get a list of equipment needs/ necessity's together. Wondered what devices are out there that are being used for surveying etc? Also what programs are used to ...
by MSI
Mon Jul 12, 2021 3:58 pm
Forum: General Reconstruction Analysis
Topic: End-Over-End Rollover Analytical Relationships
Replies: 0
Views: 12

End-Over-End Rollover Analytical Relationships

We've made a copy of this topic from the topic Rollover Analysis: minimum speeds and roll velocity approximation The following is a page out of our book McHenry Crash Reconstruction 2008 which includes some equations to consider in calculating a minimum speed to produce an end-over-end vault. We wil...