10
Step Flight Trimming Guide
John Koptonak's famous guide for trimming free-flight
models. Also useful to R/C modelers.
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Airfoil
Plotter
This little program creates logarithmic spiral airfoils
based on the thickness you choose. Output can be sent
to printer or plotter.
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Unit
Converter
Extremely useful for converting units of distance, temperature,
volume, time, speed, mass, power, density, pressure,
energy and many others.
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Lozenge
Pattern
WW1 German lozenge pattern may be printed directly onto
tissue before covering your model (fills an 8.5"
x 11" sheet). Created by Jared Pease.
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SWG
Conversion Chart
Handy for converting standard wire gauges to inches.
Contributed by Neville Mines.
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SFA
Logos
Two different logos in various sizes. Use them to decorate
your models, flight gear, T-shirts... anything!
(for non-profit use only)
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Make
Your Own Printwood
7 methods of transfering part outlines to balsa, describing
pros and cons of each. Plus, a new iron-on method!
Contributed by Chris Boehm.
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Printed
Tissue Graphics
Use your own computer to print these great designs for
your model coverings.
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Jimmie
Allen Graphics
Famous emblems suitable for making decals, T-shirts, etc.
Contributed by Ron Teichert
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Balsa
Density & Stiffness Calculator
Enter dimensions and weight to calculate the density
of a piece of balsa. Add the buckling load to calculate
the stiffness coefficient. Created by Tim Goldstein.
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Balsa
Density Charts
Determine the density of your 3" wide and 4"
wide balsa sheets. Thanks to Paul Bradley for these
tools.
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Balsa
ID Chart
Identification of grain types, including "dos"
and "don'ts" on how to use each type. Vital
info for scratch-builders.
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Duster's
Propellor Tool
A nice method for getting prop blades accurately aligned
into a spinner. From Michael Heinrich, inspired by Tony
Peters.
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Pendulum
Control
Automated rudder & elevator control for free-flight
models!
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SFA
skins for games
Special SFA "skins" for the Pacific Fighters
and IL-2 Sturmovik Forgotten Battles flight
sim games. Created by Stephane B.
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Prop-Form
Calculator
Design accurate pitch and P/D ratios into your formed
prop blades! Read the full article here.
Developed by Bill Parmley
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HLG
Flight Trimming
A basic and beginner's guide to trimming hand-launched
gliders.
By Kevin Moseley
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