• AA-SM-216-001 Free Engineering Spreadsheets: Geometry – Circles This spreadsheet generates geometric properties for circular ...
  • naca-rm-e6j08 Effect of Fuel Composition, Engine Operating Variables, and Spark Plug ...
  • naca-rm-a7j23 High Speed Aerodynamic Characteristics of Four Thin NACA 63 Series ...
  • naca-rm-l6h28a Investigation of the Characteristics of a High Aspect Ratio Wing ...
  • naca-rm-l6h28c Investigation of Dive Brakes and a Dive Recovery Flap on ...
  • naca-rm-l6k08a Results of Tests to Determine the Effect of a Conical ...
  • naca-rm-l6k08c Drag Measurements at Transonic Speeds of NACA 65-009 Airfoils Mounted ...
  • naca-rm-l6l17 Preliminary Tests at Supersonic Speeds of Triangular and Sweptback Wings
  • naca-rm-l7d23 Wind Tunnel Tests at Low Speed of Swept and Yawed ...
  • naca-rm-l7f30 Free Flight Investigation of Control Effectiveness of Full-Span, 0.2 Chord ...
  • naca-rm-l7h05a Performance Possibilities of the Turbojet System as a Power Plant ...
  • naca-rm-l7h26 Flight Investigation to Determine the Hinge Moments of a Beveled-Edge ...
  • AA-SM-216-001 Free Engineering Spreadsheets: Geometry – Circles This spreadsheet generates geometric properties for circular ...
  • naca-rm-e6j08 Effect of Fuel Composition, Engine Operating Variables, and Spark Plug ...
  • naca-rm-a7j23 High Speed Aerodynamic Characteristics of Four Thin NACA 63 Series ...
  • naca-rm-l6h28a Investigation of the Characteristics of a High Aspect Ratio Wing ...

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Circular Properties – Segments and Sectors

Over the last couple of weeks I had to generate some circle segment and sector section properties - this spreadsheet calculates the area and the position of the centroid of circular segments and sectors. You can download it
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What to do about Microsoft – Revisited

You can read the original post here. There is customer service and then there is Microsoft customer service. Following on from the inability of Microsoft to transfer an Office 365 account between countries I received an email notice from Microsoft
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What to do about Microsoft?

It seems that once a month I end up writing some rant about a piece of software. Believe me, this is not my intention but once a month something essentially stupid happens with a piece of
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Updated Part 23 Simplified Loads Sheets

These methods are only applicable to simple, traditional aircraft configurations. Part 23 Appendix A should be read in its entirety to fully understand the context of these loads methods.
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Sheet Metal Wire Gauge Sizes Table Chart

Weight and thickness of sheet metal, standard thickness of sheet metal and wire. Material Specifications for Steel Sheet Metal: A366: Cold Rolled Commercial Quality A569: :Hot Rolled Commercial Quality A570: Hot Rolled Structural Quality A526: Zinc Coated (Galvanized) Steel A526/A527: Galvanneal A591: Electrolytically
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Inch and Metric Drill Bit Size Chart

Machinist Drill Bit Size Table - ANSI Drill Size Chart - ISO Metric Drill Bit Size Table. Millimeter to inch conversion     Fractional and Metric Sizes ref. ANSI/ASME B94.11M-1993
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Founded in Ontario Canada in 2008, Abbott Aerospace started helping modification programs and aircraft startups with composite structures development. As we grew we added new competencies and experience and now we cover clean sheet configuration to certification management of composite and metallic structures, mechanical systems, landing gear and loads engineering.

Within each discipline we have broad knowledge and operate from kit aircraft to part 25 commercial aircraft. We have also gained experience of unique platforms such as powered parachutes, wing in ground effect vehicles, supersonic transport aircraft and semi dirigible flying wings.

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We Enjoy Bringing The Best Engineering And Project Decision Making To Any Aerospace Development Program

Abbott Aerospace Engineering Services

  • Composites
  • Loads Engineering
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  • Certification

We help aerospace companies create, modify, and fly unique and exciting aircraft. From clean sheet design to certification and in-service support, no other engineering service provider can match our competence and experience.

We train and mentor our clients’ in-house engineering teams. We also help our client create internal methods, processes and entire engineering systems – all supporting the goal of type certification and production certification and a safe and economical aircraft product.

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Let Us Reduce Your Technical and Financial Risk.

The Abbott Aerospace Technical Library

  • Technical Papers & Reports
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The Abbott Aerospace Technical Library Contains 12,458 Documents.

The Technical Library Relies On Generous Contributions From Our Users. Please Help Us To Maintain, Expand and Improve The Library By Making A Donation. A Donation Of Any Amount Is Greatly Appreciated

The Abbott Aerospace Technical Library brings together our PDF reference library of Technical Papers & Reports, analysis spreadsheets for Microsoft Excel, Excel add-ins MArket Information and Analysis, and other references and tools we have created or discovered.

We have made this material available for free for a number of years. We reached over 250,000 downloads in 2015 and now average 1000 downloads per day. We realized that our information service deserved a better platform. We launched the technical library to meet this need and it is now a donation-driven service, free to everyone.


In 2015 we relocated our corporate operations and key staff to the Cayman Islands to take advantage of the unique business environment, IP protection aspects and to be able to attract the best people. It gives our clients an extra reason to come and see us. We offer world class conference facilities and an exceptional environment for any meeting or review.

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Registered Office
First Caribbean House
P0 Box 1990, KY1-1104
George Town, Grand Cayman, Cayman Islands
Cayman Project Office
Baytown Plaza
68 West Bay Road, PO Box 10315, KY1-1003
Grand Cayman, Cayman Islands
Canadian Project Office
637 Hurontario Street
Collingwood, Ontario L9Y 2N6 Canada

Our Passion Is Commercial Viability And Engineering Excellence. Contact Us To Find Out More.