The trusty 555 Timer
has so many uses in for model aircraft it is amazing. This little
utility will help when trying to determine the required parameters
for the key components for your project.
Remember that the
capacitor value is in farads and not microfarads. A 10uF cap
would be .00001, a 1uF cap would be .000001, etc. Resistor values
are in Ohms (IE: 1K is 1000, 1M is 1,000,000).