In my last column, I wrote about static electricity and the need for a bonding cable. I received numerous replies so I thought I would add some additional information.
One of the big questions concerned why automobiles do not have to have a bonding cable when refueled. Back to the basics: For a spark to start a fire or explosion, one must have fuel, air and an ignition source.
But liquid fuels like avgas and Jet A do not burn. They must be mixed with air in correct proportions or air/fuel ratios to burn. [Read more…]