i was a Ham operator in the late 70s KA4BGX and i used to spend countless hours tuning thru frequencies and would find all these way out sounds very similar to the "backwards music" station. most of it was microwave repeaters for telephone transmission, some of it was locator beacons for air navigation. you could tell what it was by the frequency. the one thing that used to baffle me was what i called the quacker. it was in the 6500khz upper side band, similar to the aforementioned backwards music and was something of a turtle on a fence....a signal that shouldn't be there. sounded like a duck. quack quack quack nonstop. never figured it out.
the covering of a light plane such as the super cub in the picture adds very little strength to the airframe. as long as the structural tubing is undamaged you are golden. what do you think covers these planes? polyester fabric!
i thought avatar sucked. the three dee was cool, but the movie has been done already by disney.....pocohontas.
careful israel. the US invented the "flying bedstead" in the late forties. it relies on fly-by-wire for stability. engine out is an issue, it glides like a brick and cannot autorotate.
sounded like a duck. quack quack quack nonstop. never figured it out.
careful israel. the US invented the "flying bedstead" in the late forties. it relies on fly-by-wire for stability. engine out is an issue, it glides like a brick and cannot autorotate.