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
August 31st
B&CA September 2017 volume 113, issue 08 Publication Info Cover Date:  Fri, 2017-09-01...
August 24th
AIRBUS HELICOPTERS INC. has $34.5m U.S. Army contract for UH-72 Lakota contractor logistics support and sustainment of additional flying hours. read more
August 24th
View the Fleet Snapshot: Worldwide AT-802 Fleets chart in PDF format. read more
August 24th
Kazan Helicopters has started assembling the first prototype Mi-38T heavy transport helicopter, according to parent company Russian Helicopters. read more
August 24th
View the Airline Snapshot: Air China chart in PDF format. read more
August 24th
Charter operators such as Monarch Airlines and Thomas Cook Airlines are ripping up the rule book, embracing scheduled flights and expanding in long-haul. read more
From FlightGlobal
August 23rd
Fiji Airways has signed an agreement with Viking Air to acquire three DHC-6 Series 400 Twin Otters for its Fiji Link subsidiary, with an option to acquire a fourth aircraft.
August 23rd
Singapore Airlines (SIA) has parked the first Airbus A380 aircraft to enter commercial service.
August 21st
United Airlines continues to evaluate adding a 100-seat aircraft to its mainline fleet, less than a year after it cited the aircraft category's poor economics for the conversion of its Boeing 737-700 order to larger variants.
August 21st
EVA Air has retired the Boeing 747-400 passenger aircraft, after performing the type's final flight on 21 August.
August 18th
American Airlines will base its first Boeing 737 Max 8 at its Miami International airport hub, with plans to enter new markets and replace other narrowbody flying.
August 15th
The Avro RJ has bowed out of service with Swiss International Air Lines, 27 years after the four-engined jet made its Swiss debut with the airline's predecessor Crossair in BAe 146 form.



  • 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.