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
April 28th
Senior navy leaders from the U.S. 7th Fleet and People’s Liberation Army Navy (PLAN) met earlier this month in Zhanjiang, China, “for a professional exchange of ideas” in a variety of technical and operational topics on board the Chinese...
April 28th
UTAH STATE UNIVERSITY’S SPACE DYNAMICS LABORATORY received U.S. patent for Multiple Petal Deployable Telescope, designed to allow precision deployment of larger telescopes on small satellites, positioned within nanometers. PARAGON has subcontract t...
April 28th
On Wednesday the full House Armed Services Committee marks up the fiscal 2016 National Defense Authorization Act, following last week’s series of subcommittee markups. And the House Science, Space and Technology Committee marks up NASA authorization...
April 28th
  Selected U.S. military contracts for April 20, 2015 U.S. AIR FORCE read more
April 28th
Business jet and general aviation pilots already enjoy the safety benefits of synthetic vision. Airline pilots are next in line. read more
April 28th
Airlines are going back to school to build new training programs to demonstrate deep-stall and upset recoveries in the simulator. read more
From FlightGlobal
April 27th
The Israeli air force (IAF) is in the process of incorporating an automatic takeoff and landing (ATOL) capability into its Israel Aerospace Industries Heron 1 and Elbit Systems Hermes 900 unmanned air vehicles.
April 27th
​The US Navy claimed an aviation first after an unmanned demonstrator was refuelled in flight, but budget pressures will see it trail the army in using such equipment operationally
April 27th
​Commercial unmanned air vehicle operators have advised those that want to exploit this emerging technological market to take a common sense approach to operating within the permitted boundaries set out by the UK Civil Aviation Authority (CAA).
April 24th
​EASA’s recent proposed ruling that it takes regulatory responsibility for smaller unmanned air vehicles has left national aviation agencies questioning what category of small UAVs it will be left to regulate.
April 24th
After an amazing 14 years leading Flight International, Murdo Morrison is moving to a new role within Flightglobal to fully exploit his skills and enormous market knowledge across the aerospace sector.



  • Two new links on the LINKS page, 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.



Brazilian KC 390 First Flight - 2015/02/03

You must install Adobe Flash to view this content.

SOLAR IMPULSE: Wonderful engineering work

You must install Adobe Flash to view this content.