World War I. It's often hard to picture the beauty of the
airplanes that flew in this conflict because, photographically, it
was a "black-and-white" war. In reality, WWI airplanes were often
painted in vivid colors, and flew through blue skies over green
fields and forests.
The frictional heating of a satellite's interior due to flexure
caused by the gravitational pull of its parent planet and possibly
neighboring satellites.
"The key to the continued success of the Exp-Amateur
Built rules depends on the consistent enforcement of the rules
already in place. The resources required to carry out this
enforcement have not been made available by the FAA over the last
few years. Without these resources, enforcement loosens and the
rules are pushed beyond their spirit and intent, compromising the
rules continued existence."
Source: Jeremy Monnett, Sonex Aircraft CEO and
General Manager, in a letter sent Thursday to Miguel Vasconcelos of
the Production and Airworthiness Division of the FAA. Monnett's
letter concerned the FAA's proposed changes to the so-called "51
Percent" rule, governing homebuilt aircraft. Monnett implored the
FAA to enforce the rules already on the book
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