See how you can support Engineers' Tool Kit


Engineers' Tool Kit - The Free Engineering Tools Site


Free engineering tools, references and news for structural and stress engineers. Almost everything here is free to use and download. 

Find here: 

  • free engineering software, spreadsheets and programs 
  • references to books for stress analysis, fatigue, dynamics, etc. 
  • reports, requirements and manuals for free download or consulting 
  • free software download on the toolkit
  • links to material data, technical reports, unit conversions, etc 
  • news for engineering professionals, videos and more

Complete site content at Site Map


Our articles:    Engineers' Tool Kit - Our View

THE LATEST NEWS - for complete coverage go to NEWS page

From Aviation Week & Space Technology
May 29th
Dry ice and holograms were deployed in Palexpo yesterday as Airbus introduced Airbus Corporate Helicopters as a comprehensive vertical lift solution for high-net-worth individuals, corporations, or business aviation operators. read more
May 29th
TAG Aviation Europe has announced it is exiting the Spanish market as it moves to consolidate aircraft operations under a limited number of Air Operator Certificates. read more
May 29th
View the Monthly Program Profile: Bombardier Challenger 600/601/604/605/650 chart in PDF format. read more
May 29th
Yingling Aviation in Wichita has delivered its first Ascend 172, an upgraded Cessna 172 aircraft. read more
May 29th
May 31-June 1—ap&m Europe, Olympia London, U.K. For more information go to read more
May 29th
VistaJet has eliminated ferry flight fees for new program customers, which can cost customers an additional five figures on each flight. read more
From FlightGlobal
May 26th
United Airlines president Scott Kirby hopes to convince its pilots to allow for more large regional jets in its fleet, as the carrier focuses on increasing connectivity over its hubs.
May 25th
BOC Aviation has ordered four Airbus A320neo family and two A330-900 aircraft, all of which will be leased to TAP Portugal.
May 25th
Bombardier offered United Airlines a less-dense configuration of its CS100 in a 2015 campaign, not a shortened variant of the 100-seat aircraft.
May 24th
Delta Air Lines' first Airbus A350-900 made its maiden sortie today, flying for 5h 37min off the coast of France.
May 22nd
Malaysia Airlines will not fit premium economy seats to its incoming fleet of Airbus A350-900s, but maintain a small first class cabin.
May 21st
Malaysian carrier Malindo Air flew the world's first Boeing 737 Max 8 commercial flight on 22 May, operating the Kuala Lumpur to Singapore route as flight OD803.



  • Link to XL-VIKING Display Your Math in Excel. Check your Spreadsheet calculations effortlessly with the XL-Viking Check & Display Functions. Basics free for download, professional version really acessible. See on LINKS.
  • Analysis & Design of Composite & Metallic Flight Vehicle Structures - Abbott - 2016 - First Edition. A new, up to date reference for structures engineers. Link for free download at:

  • New links on the LINKS page, to an easy way of calculating welded connections, to AeroStudents and to Engineers Edge add more reference material and on line calculators of a broad range of engineering topics.

  • Free program for digitizing curves - CurveSnap, added to Programs page and link to on line curve digitizing site

  • Spreadsheet  on Spreadsheets page for extracting SPC loads from NASTRAN f06 output file

  • Link to MIL SPECS and more specifications, handbooks, on EverySpec  at LINKS page

  • New spreadsheets: stress-strain curve for non linear stress analysis and Neuber Plasticity correction using Ramberg&Osgood material curve added to the Spreadsheets page

  • Link to all regulations and specifications, from EASA, on the Regulations - Aircraft page  

  • New page:  CAD Programs with links for download, free, CAD Programs for 2D and 3D

  • New page:  Compilers with links for download, free, compilers for the most used programs for engineering and research.

  • New link on Links page to NASA site with NASA and NACA Technical reports for downloading.



Airbus A350-1000 First Flight

You must install Adobe Flash to view this content.

BOEING 787 - 9

You must install Adobe Flash to view this content.