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Posted By: alsetalokinCircular runways: Engineer defends his proposal
Posted By: Andrew PalfreymanYour entire approach will be directly into the wind. Only after touchdown will that vector rotate.
Posted By: Andrew Palfreymanwot?I'd much rather deal with strong crosswind once the wheels are firmly on the ground.Now there is one disadvantage that's been pointed out for a circular runway, and that's the ground clearance of the wingtips.
Posted By: AngusGiven the difficulty of the bank and the fact that only one approach is usable to the whole ring, why is it better than a second runway?
Posted By: alsetalokinYes, and only at and after touchdown (and before liftoff) does the wind relative to the ground cause problems with aeroplanes.
Posted By: alsetalokinThere are other problems as well. For example, the turn radius of an aircraft depends not only on bank angle but also on airspeed. At a given bank angle the turn radius of , say, a fighter jet with an approach speed of 180 knots will be significantly greater than that of, say, a light twin approaching at 100 knots. The fighter jet will have to bank much more steeply to match the radius of the circular runway than will the light twin.
Posted By: Andrew PalfreymanPosted By: alsetalokinYes, and only at and after touchdown (and before liftoff) does the wind relative to the ground cause problems with aeroplanes.wot?The difficulties with crosswind landings are at their most vexing during the landing. Again, this is one of the reasons for a circular runway.
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