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1

These are not actually dimples but shallow bulges. I found a higher-res image online and checked it out. The drone is not very large, less than 2 m (6 ft) long. They are not large enough to have significant aerodynamic effect at the speeds the drone flies. Lots of much faster planes have rows of rivet heads which stand out more than these do. They are about ...


1

Under FAR Part 117, only certified "air carriers" are allowed to sell "aviation services" to the general public. Certification means that the FAA has determined the proposed operations, whatever they may be, will be reasonably safe. FAR Part 121 covers most scheduled air carriers, which are commonly called "airlines". These are the only air carriers that ...


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Here are some indications that the FAA has given that phrases like "surface area of Class E airspace designated for an airport" do include E4 Class-E-to-surface "extensions": In the current Aeronautical Information (AIM), section 3-2-6(e)(2) contains the following sentence (italics and bolding added): Surface area arrival extensions become part of the ...


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There's a wide range to techniques. In the hobby world, it's much like landing a full-size plane under VFR, you fly a circuit and glide path. Flaps, side-slip, cross-wind, retractable undercarriage, etc can all be used. The difference is that you have to judge the runway centre-line from some distance off to one side, which requires a lot of skill and ...


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