Top 1000 ultralight aviation links - the worlds most popular ultralight aviation database continuously edited and revised...

Technical Tools, Stuff. Material and Tips for ultralight pilots

Sites with technical information in many levels, some real professional - for the ultralight pilot - as well as hardware.

| Home | Select Group | Select Country | Submit your site | Show new links |

Links added within 14 days are marked NEW



Description of ultralight aviation site


4130 Steel Tube Airframe Construction Video

About the Video: There are volumes of information available regarding the construction of tube and fabric aircraft. Unfortunately, most of this information is geared toward older techniques and traditional welding methods. This DVD covers the techniques that I would recommend to a new generation of builders.


AC 90-89A Amateur-built Aircraft & Ultralight Flight Testing

This advisory circular (AC) sets forth suggestions and safety related recommendations to assist amateur and ultralight builders in developing individualized aircraft flight test plans.


ADS-B Technologies, LLC

What Is ADS-B ? ADS-B is radically new technology that is redefining the paradigm of COMMUNICATIONS - NAVIGATION - SURVEILLANCE in Air Traffic Management today. Already proven and certified as a viable low cost replacement for conventional radar, ADS-B allows pilots and air traffic controllers to "see" and control aircraft with more precision, and over a far larger percentage of the earth's surface, than has ever been possible before.


AeroElectric Connection

Publications & Avionics From AeroElectric Connection - Tools and Materials From B&C Specialty Products - Radio Pinout Guides - And much more.


Air Tech Coating Inc.

Covering with AIR-TECH materials is very easy. The labor is cut by almost one half compared to using dope.



Series of articles on aircraft design and construction.


Airplane Analysis and Design Software

Software for airfoil, wing and airplane design and analysis. Compute lift, drag, moments and stability of wings, wing-tail combinations and the complete aircraft. The software reduces the time it take to develop a working aircraft.


Another Converter

A digital converter: Area - Bits & Bytes - Density - Energy - Force - Length - Mass - Power - Pressure - Speed - Temperature - Volume.



Aircraft design being the core interest, with flying wings being of particular interest

New Zealand

Articles from Hoftec

Hoftec and Frank Hofmann have published a number of articles of interest to those in the aviation industry. These have been published in leading aeronautical magazines and journals including EAA, COPA, IAOPA.


Aviation Formulary

A fairly complete collection of great circle and rhumb line navigation formulae.


Aviation Fuel Club

Are you concerned about the future availability of fuels for sport avaiation? We are. That's why we started the Aviation Fuel Club.


Avionic West GPS Training

Aircraft navigation has been revolutionized by modern GPS receivers driving color moving map displays. These displays can import weather, fuel, traffic, and radar information to assist in the flight.


BMAA - Flight Tests

A selection of flight tests which have been previously published in Microlight Flying.

United Kingdom

Bolt Science

We specialise solely in bolting related matters providing consultancy, training and test services in this area. We have also developed software on the analysis of bolted joints which is in use world-wide across six continents.

United Kingdom

Carb Heat from CPS

The carburetor Heater is intended to add a small amount of heat to the carburetor body in order to keep the temperature of the body above freezing point.


Carb Heat from Skydrive


United Kingdom

Carb heat on Rotax 912

In operation the crab heater adds a small amount of heat to the carburetor body at its downstream end in order to keep the temp of the body above freezing point.


Carburettor Icing-probability

This report investigates and reports of the probability of carburettor icing, based on radiosonde data from WMO station no. 06181 Jægersborg, located 7 km north of Copenhagen.


Caro Engineering

Tips and Tricks for Aircraft Homebuilders - Building Metal Airplanes - Homebuilt Aerodynamics and Flight Testing - Efficient Powerplant Installation - Composite Facts. Written by Sonja Englert, an aeronautical engineer born in Germany. At 16 she started flying gliders, soon adding motorgliders and airplanes to her ratings.


Ceconite and Randolph Covering Systems

Ceconite is the name of a family of aircraft fabric covering products, all based upon a very special polyester fabric that has become a a major industry standard.


Chris Heintz Design College

Aeronautical engineer Chris Heintz, the designer of Zenith Aircraft Company's line of kit aircraft, is one of the most qualified and knowledgeable light aircraft designers today


Composites, working with

Do you plan to work with compositematerials, ou might find some good hint on this site.


DaVinci Technologies News and Media Coverage

Our Mission: To make state-of-the-art computer-based engineering analysis tools accessible to users without engineering backgrounds through the development and marketing of user-friendly, affordable, graphically-oriented software packages.


Dean's Blue Jay 7

Aircraft super calculator, ASI calibration calculator and a description of how to build a high performance antenna and a lot more interesting things.


Decarboning the Engine

The author of this page is not a professional or certified aircraft engine mechanic. The information contained herein constitutes a description of the writer's experience only.



Car engines, built in mass production, take advantage of top-level technical research. Over time, diesel engines have gained more and more power, thanks to turbochargers and intercoolers, and have become lighter.


Ed Williams Aviation Page

A beginning on a (mathematical!) primer on navigation on an ellipsoidal earth is here. I´m planning on getting this finished sometime... and a lot lot more (math).


Experimental Panel Builder

This tool is for entertainment purposes only! Although we try to ensure the panel and instrument sizes are correct, we cannot, and do not, guarantee anything...


EAA Center for Homebuilders

Lots of articles and other relevant stuff for the homebuilder as well as the ultralight enthusiast.



If you're interested in the Flying Flea, Wee Bee, Honey Bee, four-place Queen Bee, Horten VI flying wing, and other such unusual aircraft, this page is a must-visit.


Fuelclear from FUELCARE

Designed for the smaller business and domestic user for the prevention and treatment of bacterial and fungal slimes. Fuelclear M68 cuts maintenance costs and prevents loss of engine performance. Supplied in 250ml and 1 litre bottles.

United Kingdom


Fuel system overview, fuel tanks, fuel lines and connections, fuel filters, Mikuni pumps, the squeeze bulb, Facet electric pump, series og parallel hook up, primer systems and a lot more.


Glenn Research Center

FoilSim computerprogram can be downloaded here. Public access to some of our web sites is temporarily limited.


Hints for Homebuilders

Videos from EAA for homebuilders.


Hjelmco Oil AB

The map show you where you can get Hjelmco Avgas 100LL, Hjelmco 91/96UL and Jet-A1.


Homebuilder's Den

The Homebuilder's Den is an electronic newsletter on the world wide web for the aircraft homebuilder, pilot, and aviation enthusiast.


HomebuiltHELP - DVD's for the homebuilder.

Welcome to a great source of instructional material and resources for the experimental airplane builder! You just can't learn everything from a book! Our library of video presentations will be growing in the future months - also films about Rotax 912 and Jabiru engines.


How Airplanes Fly

Almost everyone today has flown in an airplane. Many ask the simple question, "What makes an airplane fly"? The answer one frequently gets is misleading and often just plain wrong.


How Airplanes Work

Before we dive into how wings keep airplanes up in the air, it's important that we take a look at four basic aerodynamic forces: lift, weight, thrust and drag. Read more........



Amazingly enough, this question is still argued in many places, from elementary school classrooms all the way up to major pilot schools, and even in the engineering departments of major aircraft companies.


How Force, Power, Torque and Energy Work

Introduction to How Force, Power, Torque and Energy Work.


How Stuff Works (HSW)

How 2-stroke and 4-stroke engines work. You have the questions - and here you find the answers - In the popular way.


How you can read spark plugs

The trick in all this is to know enough about spark plugs to be able to choose the right basic type, and to understand what the plug has to say about conditions inside your engine.


innovative aero gmbh

The company’s main focus is aircraft certification (acc. FAR 23) for use of automotive gasoline in Europe. For information only for ultralightpilots.


Inverse-V Antenna



Kawasaki 340 engine

The 340 is one of Kawasaki's "modular" type engines, that is, you can swap jugs and pistons on the same crankcase to obtain either a 250cc, 340cc, or 440cc engine, in either the liquid-cooled or air-cooled format. Just change jugs and pistons and that's pretty much it.


KondorAviatik GmbH - Ausbildung - Charter - Service - Shop

KondorAviatik GmbH is your provider for ultralight items in Southern Germany. Situated at airfield Mengen-Hohentengen (EDTM) we provide , air school, charter, maintenance and a pilots´shop. See you...


Light Plane and Ultralight Antenna Guide

Lots of articles from 2009 to 2012 on EAA - EXPERIMENTAL AIRCRAFT ASSOCIATION


Loctite Denmark

Som noget helt nyt kan du få Tekniske Datablade på vores produkter på dansk. - Da vi har mange produkter i vores sortiment, vil det på nuværrende tidspunkt være muligt at downloade datablade på nogle af vores produkter, men vores mål er, at du i nærmeste fremtid vil kunne finde Tekniske Datablade på ALLE vores produkter.


Maryland Metrics

Your one-stop METRIC hardware source!



FEEL THE SURGE OF ANOTHER 15 HORSEPOWER! Now you can convert Your Rotax 912UL to the 912 XTRA to get extra 15 HP in about 3 hours and in most cases without removing the engine!


Mechanics Support

You get 41 software programs designed to make your job as a mechanic easier. Smart Tools with over 3,000 photographs, Manuals and Videos.


Micro Aerodynamics Inc.

Micro vortex generators are small metal blades placed in a spanwise line aft of the leading edge of the wing. They conrol airflow over the upper surface of the wing by creating vortices that energize the boundary layer. This results in improved performance and control authority at low airspeeds and high angles of attack. Not yet avaiable for LSA and ULM.


Micro Vortex Generators on the STOL on CH 701 Elevator.

Installing Micro Vortex Generators on the STOL CH 701 Elevator


Mode-S Elementary & Enhanced Surveillance

All aircraft flying VFR in designated airspace are required to carry and operate Mode S Elementary Surveillance airborne equipment by 31 March 2005 with the following Transition Period: New production aircraft to be compliant by 31 March 2005 - Completion of retrofits by 31 March 2008, subject to individual State agreements. - Read more from Eurocontrol.


Motors on AVweb

Articles about engines written by Marc Cook, who is, besides being a big engine nut, the editor-in-chief of Kitplanes magazine and a freelance journalist living in Long Beach, Calif.



The Mr. Funnel Fuel Filter is specially designed to filter out water, dirt, and debris from most fuels including, gasoline, diesel, heating oil, and kerosene. These harmful contaminants can lead your engine to a loss of efficiency, engine shutdown, or even system failure.


Nurflügel Papers

Welcome to! There are several web sites that are part of - my Java software section, my aviation history section about flying wings, and my personal web site.


Oil Facts

Choosing the best motor oil is a topic that comes up frequently in discussions between motoheads, whether they are talking about motorcycles or cars. - For aviation engines, always use the oil specified by the manufacturer of the engine.



Welcome to Convert just about anything to anything else. Over 5,000 units, and 50,000 conversions.


Petersen Aviation

This website is designed to answer the most frequently asked questions about using automotive fuel in General Aviation airplanes.



Welcome to PlaneMath, a place to learn cool things about math and aeronautics!


Poly Fiber Aircraft Coating

It's A Complete System - When you cover your airplane with Poly-Fiber, you get everything you need. All the tools and materials, all from your Poly-Fiber distributor.


Propeller Tip Speed Calculator

Would you like to know how fast your propeller tips are traveling? Enter some different combinations of prop diameter and RPM setting below to find out.


Radio Interface Schematics

Might be a little bit of help for you.


Savannah Tips on Aerokits

25 tips to choose.


Schaeffer AG

Schaeffer AG ships customized front panels and enclosure parts. Using the free Front Panel Designer you can design front panels easily. We manufacture the front panel based on your file using modern CNC milling and engraving technology



Plotters for in-flight VFR navigation. Correction of of course situations and diversions to alternate aerodromes


SkySports, technical information.

SkySports® offers such a large variety of instruments and so many pilots are new to the sport that we felt it was time for a little explanation. Lots of good stuff for newcomers as well as seasoned pilots.


Sparkplugs - how they work

Spark plugs are one of the most misunderstood components of an engine. Numerous questions have surfaced over the years, leaving many people confused.


Sportair on EAA

Sportair workwhops, FAQ's, How to etc.


STOLSpeed Aerodynamics

The True Story about Leading Edge Slats - How Zenair 701 & Savannah aircraft fly better with VG's (Vortex Generators) than with Slats!!!



Award Winning Aircraft Fabric Covering & Aircraft Finishing Systems


Swiss Style Muffler

As you may know, Sweden and Switzerland were among the first two countries in the world to impose strict - nay, drastic - limitations against all noise pollution. Read more.


Tech.Tips for the Jabiru Engine

Engine break in, installation, operation, & maintenance tips.


Technical articles from MUROC EAA CHAPTER 1000.

The following are technical articles that have appeared in The Leading Edge, newsletter of Chapter 1000. Except where noted, these articles are the original work of members of Chapter 1000 of Experimental Aircraft Assosiation.


Technical stuff from Canada

Lots of interesting technical stuff: avionics, instruments, wiring diagrams and a lot more.


The Vee-Rabbit Antenna

If you are a technical type then this is a 5/8 wave base-loaded dipole with 2.6dB gain relative to a standard ¼ wave whip antenna. -

United Kingdom

Thermocouple App. Note, How they work

Thermocouples are the most popular temperature sensors. They are cheap, interchangeable, have standard connectors and can measure a wide range of temperatures.

United Kingdom


(In Norwegian) De som tror totaktsmotorer er noen små motorer som bare er benyttet i motorsager, mopeder o.l. tar feil. Det finnes en Yamaha V-max 6 sylindret motor på 1200 ccm. og snøscootere med 1150 ccm og 250 hk. Det er også laget totakts dieselmotorer med 16 sylindre og volum på 550 kubikk tommer og over 50000 hk.


Use of Mogas on LAA

Use of mogas in Continental, Lycoming, Rotax 2 Stroke, Rotax 4 Stroke, VW and VW Based, Jabiru 2200A, Hirth 2 Stroke engines.

United Kingdom

VG's on NASA

The wind tunnel tests showed that Micro VGs dramatically enhanced performance on aircraft resulting in a 10% increase in lift, 50% decrease in drag, and a 100% increase in lift-to-drag ratio.


What is a stall?

In reality, a stall is nothing more than the ultralight trying to do "the right thing". See the animation.


Winn Balance

This Weight and Balance software is designed to make CG calculations fast, easy and dare we say even fun! The program interface is designed so that the CG and weight of your aircraft is automatically calculated with a minimum of effort.


You Can't Build an Airplane Without Nuts and Bolts

Bolt Selection and Use Tips. AN bolts range in diameter from the AN3, which is a 3/16" or (1032) bolt, up through the AN20 (1-1/4" diameter) bolts


Your HTML Source

Welcome to HTMLSource! Come in, look around. Don’t be overwhelmed by the ample bounty of HTML tutorials available, each packed with in-depth expert advice, full diagrams and miraculous wit. Yep, I’m blowing my own trumpet here. I hope you know what I mean by that...

United Kingdom

Total: 87 of 2391 links    Should your Ultralight website be in this database?