ques about IFR "certification"

"Robert M. Gary" wrote in message om...


The type certificate states whether the plane can be flown IFR. The
certification testing includes hitting it with lightening (in a secure
room) and seeing how the electrons move around the plane.

There is NO such requirement. The only requirement is that the design
accomodate certain lightning safety features. On metal aircraft this is
accomplished just by making sure things are bonded together and watching
out for certain key pieces like fuel caps.

For composites, it means either building a coductive shield around the
important aircraft components or by other means.

While manufacturers and NASA have used testing procedures to evaluate
designs, it's NOT a certification requirement.

There is no requirement to have radios to fly IFR.

Other than 91.205(d)(2) that requires 2-way communcations and navigational equipment
appropriate to the facilites to be used. Unless you're going to make very short flights in
uncontrolled airspace you're going to need at least comms.