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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 26th
Machining work has begun on components for the high-bypass geared turbofan’s first test gearbox. read more
May 25th
Marshall Aviation Services, a subsidiary of Marshall Aerospace and Defense Group, is further expanding its fixed base operation (FBO) facility at Birmingham International Airport, U.K. Its Birmingham FBO opened in March and will house a new aircraft sales...
May 25th
May 26-29—The 8th Chaotic Modeling and Simulation International Conference, Paris, France. For more information go to, Jun. 19—The Society Of Experimental Test Pilots, 9th Annual Central Section Symposium, Wichita, Kansas, http...
May 25th
Piper has accredited Czech Republic-based OK Aviation Group as an authorized training center to provide European Aviation Safety Agency-approved services for current Meridian, M500 and M350 production aircraft. Europe has taken delivery of its initial M35...
May 25th
  read more
May 25th
Universal Aviation, the ground support division for Universal Weather & Aviation, in seeing expansion of services into Africa as necessary to its growth, as of June 1 will provide supervisory ground handling at all airports in Morocco and in Ethiopia&...
From FlightGlobal
May 22nd
​New orders for the Embraer A-29 Super Tucano appear imminent, with the airframer hoping to announce additional commitments before year-end.
May 22nd
​The US State Department has approved a requested sale of 10 Sikorsky/Lockheed Martin MH-60R Seahawk anti-submarine helicopters to the Saudi Arabian government.
May 22nd
​Boeing is banking on its partnership with Sikorsky on the SB-1 Defiant demonstrator to help usher in the next generation of rotorcraft for Army but still anticipates that its long-serving AH-64 Apaches and CH-47 Chinooks will continue to dominate t...
May 22nd
​Thales is to supply an improved version of its Searchwater radar and Cerberus mission system to deliver the UK Royal Navy’s Crowsnest airborne early warning (AEW) capability, following a selection announcement made on 22 May.
May 22nd
​Sikorsky has completed a first flight of the self-funded S-97 Raider at the company's flight test facility in West Palm Beach, Florida, to open a year-long test and demonstration phase for the high-speed, compound helicopter proposed for light attack...
May 22nd
​Embraer will in the next two months resume test flights of its developmental KC-390 transport and tanker, following a lengthy pause since its first – and only – sortie on 3 February.



  • 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

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SOLAR IMPULSE: Wonderful engineering work

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