In April’s article, “Using Ground Effect,” you gave a reasonable explanation of it. In May, reader Dave Simpson wanted to correct your “error” and wrote, “Ground effect is almost exclusively caused by reduction of induced drag” and that reducing induced drag allows “us to fly with reduced angle of attack to maintain lift when flying close to the ground.” That’s nice, but what causes reduced induced drag when in ground effect? I think that Mr. Simpson has it backward and your article was correct.
The article clarifies the mechanics of ground effect, reiterating that reduced induced drag is a *result* of ground effect rather than its primary cause, in defense of an earlier explanation.
It affirms the comprehensive explanation of aircraft turns, emphasizing that both the horizontal component of lift and the action of the horizontal stabilizer are necessary, aligning with a previous article's detailed account.
The editor defends the inclusion of political commentary regarding the FAA shutdown by elected officials, stating it is relevant to aviation safety and within the purview of the Editor's Log, while addressing reader criticism.
In April’s article, “Using Ground Effect,” you gave a reasonable explanation of it. In May, reader Dave Simpson wanted to correct your “error” and wrote, “Ground effect is almost exclusively caused by reduction of induced drag” and that reducing induced drag allows “us to fly with reduced angle of attack to maintain lift when flying close to the ground.”
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